[HN Gopher] U.S. Army Camouflage Improvement Explained (2013)
       ___________________________________________________________________
        
       U.S. Army Camouflage Improvement Explained (2013)
        
       Author : BonoboIO
       Score  : 248 points
       Date   : 2022-08-01 13:57 UTC (9 hours ago)
        
 (HTM) web link (www.hyperstealth.com)
 (TXT) w3m dump (www.hyperstealth.com)
        
       | chasebank wrote:
       | Tangentially related -
       | 
       | Arguably the most famous golf course architect, Dr. Alister
       | MacKenzie (Augusta National, Cypress Point, Pasatiempo, etc), was
       | a civilian physician in WWI and became interested in camouflage
       | design during the war. He made significant contributions to the
       | British military camouflage during his tenure. He later based his
       | golf course architecture, primarily the bunkering, from
       | camouflage design principals he had learned.
       | 
       | [0] https://en.wikipedia.org/wiki/Alister_MacKenzie
        
         | yboris wrote:
         | WWI & WWII related: the _Dazzle Camouflage_ for ships!
         | 
         | https://en.wikipedia.org/wiki/Dazzle_camouflage
        
           | chasebank wrote:
           | Thanks! That was interesting! Now I know where the phrase
           | razzle dazzle came from!
        
             | jrochkind1 wrote:
             | the term seems to pre-date the camo.
             | 
             | > The expression was then always in the form of 'give
             | someone the razzle-dazzle', that is, confuse them. The
             | earliest use that I can find of that sense of 'razzle-
             | dazzle' is the US newspaper The Saint Paul Globe, April
             | 1885:
             | 
             | >> Sir: As you seem to be in earnest in your efforts to
             | give someone the dazzle-dazzle... [I think that's a typo
             | and the original source is indeed razzle-dazzle as being
             | discussed!]
             | 
             | > The expression very quickly came to be used with a more
             | positive intent, that is, where 'razzle-dazzle' was
             | considered to be indicate enjoyment rather than deception.
             | That's found in the Pennsylvania newspaper The Daily
             | Republican, June 1887:
             | 
             | >> A meeting at City Hall resolved to celebrate the Fourth
             | [of July] by a general old-time razzle-dazzle.
             | 
             | https://www.phrases.org.uk/meanings/razzle-dazzle.html
        
       | jeffrallen wrote:
       | The parts about "they changed it but didn't test it and then
       | we're surprised when it didn't work right" made me so mad I
       | couldn't finish reading it.
       | 
       | Arrrrgh.
        
       | JoelMcCracken wrote:
       | I feel like eventually they'll be back to highland plaids as
       | being the optimal pattern.
        
       | XorNot wrote:
       | Anyone reading should check out the links at the bottom: the
       | nightvision images in particular really highlight the issue with
       | having poor NIR performance.
        
       | JohnTHaller wrote:
       | [2013]
        
       | trhway wrote:
       | It is 21st century. Flex OLEDs displaying pattern depending on
       | your background is your camo. Your tank is covered with 80inch
       | displays too.
        
         | dqpb wrote:
         | color e-ink displays would be kind of fun
        
       | sillysaurusx wrote:
       | Now I want to show up at our Zoom meetings in full camo. Doctors
       | and soldiers get such cool uniforms, but us programmers are just
       | business casual.
       | 
       | Plus then you could convince a few of your coworkers to show up
       | in camo with you and make your manager nervous you're about to do
       | a hostile takeover of the company.
        
         | biofox wrote:
         | I go for the classic 'Big Blue' look and wear a suit and tie.
         | Helps me to mentally separate work and relaxation time, with
         | the added benefit of getting better treatment from management.
        
           | the_af wrote:
           | Out of curiosity, in which kind of company do you work? In
           | many techie environments, wearing a suit and tie would select
           | you out of the job...
        
             | dfc wrote:
             | I like to dress up for work. If I have ever missed a job
             | opportunity because I dressed "too formally" I think they
             | did me a favor.
        
         | corrral wrote:
         | > Doctors and soldiers get such cool uniforms, but us
         | programmers are just business casual.
         | 
         | Programmers' uniforms are excessively-expensive hiking clothes,
         | or selvedge jeans with flannel and full-grain leather boots,
         | ideally in a work- or jump-boot style.
        
           | ahazred8ta wrote:
           | "his colleagues, a gender-parity posse of young, smart-
           | looking people, along with one graybeard (literally -- he had
           | a Unix beard of great rattiness and gravitas) who had no
           | fewer than seven devices on his belt, including a line tester
           | and a GPS." -- Cory Doctorow
        
           | rthomas6 wrote:
           | Related: the engineer's uniform of blue oxford button down
           | shirt, khakis, and Clark Desert Boots.
        
         | shard wrote:
         | This makes me think of the camo scenes in RDJ's Sherlock Holmes
         | movie: https://tenor.com/view/sherlock-holmes-robert-downey-jr-
         | chai...
        
         | cobertos wrote:
         | I really like the mandatory programming socks my company
         | prescribes. Waaaay better than business casual
        
       | mothsonasloth wrote:
       | Interesting take on design decisions for modern camouflage.
       | 
       | In my opinion Tigerstripe camouflage is one of the best patterns
       | to be invented both for aesthetics and function.
       | 
       | Followed by British DPM in second place.
       | 
       | https://en.wikipedia.org/wiki/Tigerstripe
        
       | 323 wrote:
       | Somewhat related, urban sniper camouflage:
       | 
       | https://i.imgur.com/hhQDS9c.jpeg
        
       | [deleted]
        
       | malkia wrote:
       | Why do (US?) hunters go in camouflage? Would that trick the
       | animals... or rather trick other hunters, and not see them...
       | always seemed weird going in full camouflage... for hunting.
        
         | happyopossum wrote:
         | Most hunters in the US wear a blaze orange vest or hat to
         | identify themselves to other hunters. In some states it's
         | codified by law, and in others it's strongly encouraged (in
         | California it's a big part of the mandatory hunter safety
         | course, but is not legally required).
         | 
         | Many big game animals are color-blind (or more specifically,
         | see color differently than we do), so a camo pattern with
         | orange can still hide one from a deer, while making you visible
         | to humans.
        
           | bendur_ wrote:
           | For deer (with guns), yes. For things like turkeys, ducks,
           | geese, deer with bows, etc they do not. In hunter safety they
           | really stressed to be careful hunting turkeys.
        
           | shard wrote:
           | What if the deer is also color-blind? What colors do deer see
           | anyway?
        
             | bendur_ wrote:
             | Deer have a hard time with orange and red, which makes the
             | blaze orange work well for deer hunting. Deer don't notice,
             | and people really notice.
        
             | jessaustin wrote:
             | Ungulates see yellow and blue, but not red.
             | 
             | https://www.rmef.org/elk-network/what-you-see-isnt-what-
             | that...
        
       | jabl wrote:
       | Slightly related, in case anyone wonders why most military
       | aircraft are gray and not the camouflage patterns that were
       | previously common on top surfaces, hushkit has a writeup:
       | https://hushkit.net/2020/03/09/grey-aircraft-who-is-to-blame...
       | 
       | tl;dr: gray is a good camouflage color against clouds or haze,
       | which is a fairly common background for aircraft operating at mid
       | to high altitudes.
       | 
       | (The logic is fairly similar to what results in Navy ships being
       | painted haze gray and not azure blue or whatever color the ocean
       | happens to be today)
        
       | battery_glasses wrote:
       | If you want this website to remotely readable you can run this in
       | your browser console when the page is up:
       | 
       | document.querySelectorAll('p').forEach(elm => elm.style.width =
       | "93vw")
        
         | [deleted]
        
         | russellbeattie wrote:
         | I really wish Chrome for Android had a menu option for "Show
         | Simplified View", rather than just guessing. Some of the worst
         | sites won't trigger it, presumably because the HTML is so
         | simple the algorithm assumes you don't need it.
        
       | wyager wrote:
       | An interesting evolution in the camouflage meta is the
       | proliferation of inexpensive thermal cameras. Chinese companies
       | like Infiray are producing reasonably-priced thermal monoculars
       | that defeat all colour-based camo. Low-spec monos and COTI-style
       | devices start around $2k and high-spec (around 720p 50Hz) for
       | around $5k, same price as a nice omni VIII NVG mono.
        
       | woevdbz wrote:
       | Feels like a great application for adversarial generative
       | networks
        
       | causi wrote:
       | _It appears that someone circumnavigated the scientific process
       | and forced UCP in._
       | 
       | That would be whoever benefitted financially from the decision to
       | fuck our soldiers over.
        
         | furyg3 wrote:
         | I mean, there is an obvious (gigantic) budgetary and logistical
         | advantage of having one form of camouflage for all situations
         | over more than one.
         | 
         | If it works, of course, which it doesn't.
        
         | bovermyer wrote:
         | Much more likely is that multiple entities just wanted
         | something done quickly and didn't follow all the right
         | procedures the way they should have been.
         | 
         | Don't presume malice when incompetence will do.
        
         | michaelbuckbee wrote:
         | Having worked (as a civilian contractor) for the military it's
         | equally plausible that the decision was screwed up for other
         | reasons. High up decision makers that "trust their gut" over
         | what the data tells them or who arbitrarily decide that a
         | certain pattern looks silly to them.
         | 
         | It's absolutely not intuitive that the digital looking blocky
         | camouflage patterns [1] are going to perform better than the
         | blob style camo patterns they replaced.
         | 
         | 1 - https://www.businessinsider.com/why-militaries-have-
         | strange-...
        
           | bumby wrote:
           | Commanders have wide discretion and it's part of the
           | decentralized command mindset. They can sometimes make such
           | decisions on no more than "I think this pattern looks cooler
           | than that pattern"
        
             | bityard wrote:
             | Yep. But it depends on the relationship the commander has
             | with his or her superior officer. Some commanders are
             | burdened with having to justify every single decision they
             | make. Others have basically free reign to lead how they see
             | fit (for better or worse) as long as they stay within the
             | regulations.
        
           | olalonde wrote:
           | Hanlon's razor strikes again.
        
         | sam_lowry_ wrote:
         | Are these people in prison yet?
        
           | bovermyer wrote:
           | You're assuming malicious intent, multiple co-conspirators,
           | and illegal action.
           | 
           | None of that information is available to you.
        
           | 2OEH8eoCRo0 wrote:
           | What law was broken?
        
             | _tomcat_ wrote:
             | idk, but it seems to undermine national security.
             | 
             | Maybe in here somewhere, "Various statutes supplement the
             | provisions of Chapter 37 to criminalize activities that
             | jeopardize the national defense or national security."
             | 
             | IANAL ;)
        
               | some_random wrote:
               | I'm sure the senior military officials pushing UCP
               | through were doing so to intentionally handicap the
               | organization they spent their entire life working for.
               | Rather than just making a mistake based on overestimating
               | their own knowledge. If that's criminalized, all of HN is
               | going behind bars.
        
               | _tomcat_ wrote:
               | thats a weird take, very defensive. But, since youre sure
               | about it I guess everyone should be too.
               | 
               | I'm sure no one is trying to destroy US democracy either
               | or stage insurrections, etc. oh wait...
               | 
               | If I had to guess, I'd say it was intentional and all
               | about money. That could make it illegal. Even if they
               | didn't intend to lose in combat, it still gave US
               | soldiers a handycap.
        
               | some_random wrote:
               | So to sum things up, you're suggesting that either US
               | army officials in 2004 chose UCP to weaken the US
               | military in preparation for a fascist coup in 2020 OR
               | they chose a US gov owned pattern over commercial
               | patterns to make money (somehow)? And you're calling my
               | response defensive and weird lmao
        
               | PastaArt wrote:
               | They said their guess is "money". This looks like your
               | trying to put words in someone elses mouth. The examples
               | of corruption in government seems to be just that,
               | examples.
               | 
               | Im not sure why you try to act like they all need to be
               | tied together somehow?
               | 
               | Seem pretty defensive & weird.
        
               | some_random wrote:
               | Alright so to avoid putting words in anyone's mouth,
               | please outline how corruption could have caused the US to
               | fast track a pattern it developed itself rather than one
               | of the superior commercial patterns that they would have
               | had to pay royalties on.
        
               | _tomcat_ wrote:
               | The US didn't fast track anything, individuals did. As
               | far as motive goes, there could be many reasons, and what
               | might be able to motivate you may not have the effect on
               | someone else. Since you want something to help you
               | understand motivation and how it relates to corruption,
               | here is a link with some explanations.
               | 
               | https://hackbrain.net/main-causes-of-corruption/
               | 
               | Happy reading!
        
               | [deleted]
        
               | pookha wrote:
               | I was deployed to CENTCOM in the USAF when these uniforms
               | went into service. Worked closely with Army...If memory
               | serves they were flammable and poorly tested (circa
               | 2006). I can remember the Army units I talked to were
               | having major problems. So if you had the misfortune of
               | getting deployed outside the wire and had to wear those
               | things I could see why you might be a little keyed up 15+
               | years later.
        
         | some_random wrote:
         | Seeing as UCP is owned by the US government, I'm very curious
         | to hear who could have financially benefited from its
         | selection. If anything, HyperStealth here is the one with the
         | financial motivation seeing as their US4CES pattern was not
         | selected.
        
       | jcranmer wrote:
       | If I'm reading this correctly, the decision process that resulted
       | in the horribly-ineffective UCP pattern amounts to: "We want one
       | pattern. So let's pick one color from the best camo patterns in
       | every environment [the only one that has good NIR performance],
       | and the result will somehow work well!" Which is... yowzers.
       | 
       | (For what it's worth, the Multicam pattern, which is slightly
       | modified to the OCP pattern now in use by the US Army/Air Force,
       | manages to do a better job than the UCP pattern at actually being
       | universal camo, and it's not even the best of the tests.)
       | 
       | The NIR requirements means you can almost see how the decision
       | might be justifiable... but that no one actually tested the
       | resulting pattern as a check? I mean, one of the most salient
       | facts about human color processing is that we evaluate colors
       | based on their surrounding context, so even if individual colors
       | work well, you would need to check their performance in their
       | context to make sure they _still_ work well.
        
         | alexb_ wrote:
         | I'm in the Air force, and while not relevant to actual
         | camouflage ability, I can personally say that OCPs look _much_
         | nicer than the uniforms before. A lot of the old camo patterns
         | looked painfully ugly. And the ability to camouflage isn 't too
         | relevant for me anyways, unless I'm trying to blend into
         | chairs/desks.
        
           | mensetmanusman wrote:
           | It would be funny to have chairs and desks with the same
           | pattern so you would actually blend in...
        
             | munificent wrote:
             | Relevant famous old photo:
             | 
             | https://soldiersystems.net/wp-
             | content/uploads/2019/09/img_64...
        
               | jessaustin wrote:
               | Who left his boots on the couch?!
        
             | bityard wrote:
             | C'mon, the Army and Marines already give the Air Force
             | enough crap... I can just imagine it now... "Hey Airman
             | Ikea, we need a good desk lamp over here, is that something
             | you can help us with?"
        
         | dotancohen wrote:
         | > the decision process  that resulted in the horribly-
         | ineffective UCP       > pattern amounts to: "We want one
         | pattern
         | 
         | Just wait until you read how the F-35 was procured. "We want
         | one airplane for the Air Force, Navy, and Marines. Oh, and it
         | had to include parts from almost all NATO allies, even those
         | who we won't sell it to."
        
           | ghaff wrote:
           | Which was not an unreasonable goal to at least _consider_
           | given the well-known tendency of all the service branches to
           | want their own unique  "toys."
        
           | antisthenes wrote:
           | Tell me you want a jobs program without telling me you want a
           | jobs program.
        
           | vopi wrote:
           | The F-35 ended up being great though. Even now, it's cheaper
           | on a per unit basis than other aircraft that are worse.
        
             | jessaustin wrote:
             | If you had stopped with the first sentence, we could have
             | written it off as sarcasm.
             | 
             |  _The F-35 Joint Strike Fighter program appears to be in a
             | state of suspended development, with little progress made
             | in 2021 toward improving its lackluster performance. The
             | latest report by the Pentagon's Director, Operational Test
             | & Evaluation (DOT&E) reveals stagnation and even
             | backsliding in some fleet reliability measures.
             | 
             | And that's just the public DOT&E report.
             | 
             | In an unprecedented move, DOT&E is concealing many of the
             | key details of the F-35's poor performance. For the first
             | time ever, the testing office created a non-public
             | "controlled unclassified information" version of its
             | report, and although there is much overlap between the two
             | versions, the meaningful details about the ever-troubled
             | program are only included in the non-public one._
             | 
             | https://www.pogo.org/analysis/2022/03/f-35-program-
             | stagnated...
        
               | vopi wrote:
               | Could you comment on the price aspect I thought up? As I
               | understand it is cheap and only the cost per hour is an
               | issue. Obviously the actual program is expensive, but I
               | wanna ignore that for now and focus on the actual
               | performance.
               | 
               | Because I'm at work and can't look through the full 372
               | page non-public report linked, can you provide some page
               | numbers I could look at? I'm curious what the actual
               | issues are in actual use.
               | 
               | Btw I'm not of the same mindset of the other guy, I'm not
               | gonna call you a "Luddite Reformer" because I saw a
               | YouTube video.
               | 
               | From when I know many of the issues are FUD, but
               | obviously there is real issues and I'd like to better
               | educate myself. But I am just a layman with limited
               | research time.
        
               | jessaustin wrote:
               | _I am just a layman with limited research time._
               | 
               | You and me both! Given the wild swings in points-voting
               | seen ITT, it seems perhaps MIC reptiles and other lovers
               | of arcane jargon have more time on their hands than we
               | mere subjects have. I linked the POGO report first as it
               | seems most authoritative with respect to overall program
               | cost and military effectiveness. With respect to the
               | specific question of cost/plane (although I don't think
               | we can just forget cost/hour), this Forbes article has
               | the best explanation I've seen. [0] The beginning of the
               | following selection acknowledges one accounting method
               | that might support the idea that the unit cost is low.
               | However, when more accurate methods are used, that idea
               | makes less sense.
               | 
               |  _At $78 million the fifth-generation F-35A's unit cost
               | compares favorably to the latest non-stealth
               | 4.5-generation Western fighter. The Rafale, Typhoon,
               | Gripen-E and F-15EX are more expensive at $85 to $100
               | million apiece. The older F-16 and Super Hornet are
               | modestly cheaper at $65 to $75 million each. But while
               | these aircraft do have certain performance advantages
               | over the F-35, all are vastly more vulnerable to long-
               | range anti-aircraft missiles proliferating in militaries
               | across the globe.
               | 
               | However, the F-35 unit price metric has the shortcoming
               | of failing to reflect additional costs in spare parts,
               | logistics facilities and so forth that come with F-35
               | purchases. When those are spread out across F-35A orders
               | in 2021 they lead to a 'Gross Weapon Unit Cost' in budget
               | documents of $110 million for 2021, higher than in
               | preceding years due in part to decreased volume of
               | orders.
               | 
               | Overall, though, a moderate increase in unit price
               | arguably isn't the main issue, because procurement costs
               | account for less than a quarter of the $1.7 trillion
               | projected lifetime cost of the F-35 program.
               | 
               | Instead, a report published by the Government
               | Accountability Office (GAO) on July 7 warns that its
               | sustainment--currently expected to total $1.27 trillion
               | in real dollars--which threatens to break the Pentagon
               | budget._
               | 
               | [0] https://www.forbes.com/sites/sebastienroblin/2021/07/
               | 31/f-35...
        
               | some_random wrote:
               | It's so interesting how luddite Reformers hold such a
               | sway over the usually techno-optimist HN. Turns out that
               | new technology has teething problems, what a shocker.
        
               | jessaustin wrote:
               | Wow, my first comment on the thread, consisting entirely
               | of a quote from expert analysts, and already I'm a
               | "luddite Reformer". (Idiosyncratic capitalization also
               | doesn't help you seem balanced and rational.)
               | 
               | This turkey was designed in the 1990s. The contract was
               | awarded in 2001. The first f35 flew in 2006. When will
               | this "technology" no longer be "new"? Presumably it will
               | be some time, since the entire fleet was grounded again
               | last week due to safety concerns.
               | 
               | https://www.bloomberg.com/news/articles/2022-07-29/f-35-f
               | lee...
        
               | some_random wrote:
               | As far as I know you're not a Reformer, which is a proper
               | noun and therefore capitalized, but the "expert analyst"
               | you quoted is. Honestly that tells me enough about your
               | familiarity with this subject
        
               | jessaustin wrote:
               | Please link to any source that indicates "Luddite"
               | shouldn't be capitalized or "reformer" should, especially
               | with Capt. Grazier cited as some sort of exemplar of the
               | concept. You've had lots to say ITT but haven't cited a
               | single authority to indicate you're not just making it
               | all up.
        
               | Armisael16 wrote:
               | The Reformers were/are a group arguing for a particular
               | class of weapons and vehicles in procurement, mostly
               | focusing on relatively low-tech solutions. They're most
               | famous for their influence in the Fighter Mafia and in
               | the Bradley (see: Pentagon Wars). They're...
               | controversial.
               | 
               | That one gets capitalized because it's a proper noun (is
               | that a confusion name? sure).
               | 
               | Luddite strictly should be capitalized as well, but there
               | isn't any confusion around that one and it isn't the
               | focus, so I can understand why it wasn't capitalized. I
               | wouldn't've.
        
               | spamizbad wrote:
               | I think the reason why you're getting some pushback is
               | because we've heard all these before with another
               | aircraft that had similar teething and development
               | problems: the F-15.
               | 
               | The F-15 project was supposed to be a small and light
               | fighter but feature creep" blew the project up into a
               | massively expensive boondoggle. Some of this was due to
               | the fear of the MIG-25; an aircraft we later learned
               | wasn't so scary.
               | 
               | Yet today, the overpriced, chronic cost-overruning F-15
               | sits at an impressive 109:0 kill to loss ratio, making it
               | the best performing aircraft in the United State's
               | history.
               | 
               | But you would be correct in saying the F-35 is no F-15.
               | It has a stealth coating that is expensive to maintain
               | (this is true for all stealth aircraft). It also flies
               | with a ton of electronics to function as a "sensor
               | network in the sky".
               | 
               | But in many ways, this is similar to the complaints about
               | the F-15 and its (For the time) dizzying array of modern
               | technologies: An advanced lookdown/shootdown radar,
               | support for BVR missiles, IFF, EW and ECM systems all
               | linked to a central computer. Technically other aircraft
               | had these technologies in the 1970s, but none until the
               | F-15 had them all in the same aircraft. Fast-forward a
               | few decades and that "feature creep" doesn't even quality
               | as "bare bones" for any air superiority fighter.
               | 
               | Anyway, if you want a multi-role aircraft without the
               | stealth or sensor network gizmos of the F-35 there's the
               | Gripen E series. Its purchase price is greater than the
               | F-35 but its operating costs are much less. If you don't
               | envision your country's airforce performing too many SEAD
               | missions this tradeoff might make sense... but there's no
               | free lunch!
        
               | bumby wrote:
               | I believe the list is long of airframes where you could
               | initially find this complaint. I think the F18 had
               | similar concerns after it originally lost its
               | experimental competition to the F16. But the F18 found
               | itself as a capable workhorse for the Navy for decades.
               | Same with the Space Shuttle, etc.
        
               | spamizbad wrote:
               | The F-16, incidentally, got loaded to the gills with
               | expensive gizmos after the fact because the Airforce (and
               | other F-16 customers) quickly realized it made the
               | aircraft a far more effective platform.
        
               | formerly_proven wrote:
               | > This turkey
               | 
               | Spreyian detected, opinion discarded.
        
               | bumby wrote:
               | You do understand that most new airframes take a decade
               | or more of R&D before they are put in service, right?
        
               | jessaustin wrote:
               | This thing _is_ in service, so conventional wisdom about
               | how long it takes to do stuff before that is irrelevant.
               | From the introduction of my original link:
               | 
               |  _Despite more than 20 years and approximately $62.5
               | billion spent so far on research and development alone,
               | program officials still haven't been able to deliver an
               | aircraft that can fly as often as needed or to
               | demonstrate its ability to perform in combat, which
               | places military personnel in jeopardy._
               | 
               | I would have said the "R&D decade" was the _1990s_ since
               | JAST began in 1993 and developmental contracts were
               | awarded in 1996, but POGO are conservative in their
               | judgments.
        
               | bumby wrote:
               | Your first comment was about suspended development,
               | implying you think the system should be part of a
               | continuous R&D cycle. Yet this comment implies you think
               | the system should be outside of development. It's hard to
               | tell what you're criticizing when your points are
               | inconsistent.
               | 
               | I question some of the critiques in your link. For
               | example, they claim the JSFs 61% availability rates are
               | far below the standard of 75-80%. But if you look at
               | published numbers, none of the legacy aircraft
               | F15/F16/F18 variants (which have had decades to work out
               | reliability issues) are above a 60% availability.[1]
               | 
               | What, specifically, are you critical of in terms of the
               | JSF capability? Is that criticism due to what you
               | perceived as mismanaged development or mismanaged
               | priorities (e.g., the tradeoffs of a single platform)?
               | And what is the base rate for comparison?
               | 
               | [1] https://www.cbo.gov/publication/57713
        
               | jessaustin wrote:
               | I don't agree that any of my statements have had any of
               | those implications. USA citizens have the right to
               | complain about any expensive government program. F35 is a
               | $1.7T program, which qualifies as expensive. It's
               | perfectly ordinary to see administrators of non-military
               | programs called before Congress and raked over the coals
               | for spending that seems excessive to some legislator
               | playing to the basest instincts of voters. We recently
               | decided, somehow, that a few billion dollars was too much
               | of a tax _credit_ to justify keeping _millions_ of
               | American children out of poverty. [0] We never see any
               | elected politician complaining about military spending,
               | however.
               | 
               | It's a commonplace that we spend more on the military
               | than the next ten nations put together, most of whom are
               | our allies. That obscures the more amazing fact that over
               | a third of the military spending _in the world_ is spent
               | by USA. Obviously the Pentagon budget should be halved if
               | not quartered, as we were promised before the Saudis
               | dropped the WTC. In such a context, there would be no
               | room for a plane that offers the prospect of more expense
               | instead of more capability. Northrop lobbyists and their
               | employees at think tanks and in the media might be able
               | to dry-lab some  "rates" and "figures" to distract from
               | the obvious state of the F35 program. The scale of the
               | disaster cannot be hidden from unbiased investigators.
               | Even if it never makes the evening war media news, those
               | who care to know can consult experts like POGO.
               | 
               | However, if you insist on a criticism in the proper
               | jargon, F35 will never, ever, regardless of how much is
               | spent, be as capable at close air support as the vastly
               | less expensive A10 "Warthog". You can ask any American
               | serviceman who has served on the ground in the last two
               | decades. This isn't the only important role for a
               | military aircraft, but it is an important role.
               | 
               | [0] https://www.povertycenter.columbia.edu/news-
               | internal/monthly...
        
               | bumby wrote:
               | I agree with much of what you say. The citizenry have
               | every right to criticize and lobby for their tax dollars
               | to be spent differently. But it appears you've already
               | come to the conclusion that the JSF isn't worthwhile. Put
               | differently, what would the JSF need to show capability-
               | wise in order to change your mind?
               | 
               | I would like to see us spend less in the military if it
               | goes to better use instead. Particularly when commanders
               | are advocating getting rid of programs and Congress keeps
               | them anyway. The US is effectively subsidizing NATOs
               | military capability and mitigating the blowback requires
               | more thoughtful analysis than just slashing the budget.
               | I'm not convinced yet that POGO are the experts worth
               | listening to because they seem a bit out of touch (see my
               | last comment about what they claim the availability
               | should be vs. the parity that matters).
               | 
               | As one of those service members who was supported by the
               | A10 overseas, you're right. Grunts on the ground love the
               | sound of that cannon overhead when close air support is
               | needed. But you are comparing the one specialized thing
               | the A10 was designed to do. Stray in any direction away
               | from that and it loses the comparison miserably. Compare
               | avionics, speed, maneuverability and munitions capability
               | etc. (really, anything outside of the cannon) and the JSF
               | is just far superior. In other words, if I was only
               | allowed to have one plane in theater, it wouldn't be the
               | A10.
        
           | jcranmer wrote:
           | Wanting one pattern to work everywhere isn't necessarily a
           | bad goal. The OCP pattern, for example, works decently in
           | most environments, and is basically superior to the UCP
           | pattern in virtually all environments (it's marginally weaker
           | in NIR, though). So the real problem seems to be that the
           | criteria for deciding the best pattern was chosen
           | incompetently.
        
         | foxyv wrote:
         | There is an argument out there that the UCP camo patterns were
         | more to make US troops distinct from enemy forces and reduce
         | friendly fire than to provide any advantage for camouflage
         | purposes. That it made American troops extremely identifiable
         | by the distinct look of UCP.
         | 
         | I don't know if I believe it, but it makes a little sense. What
         | would have made more sense is if they had allowed tinting it to
         | different colors based on the region. There is an example here:
         | https://www.youtube.com/watch?v=9WckhOUMfHk
        
         | autokad wrote:
         | when I was playing paintball, some people would wear that junk.
         | they may as well wear bright orange hunting jackets. I can see
         | them easily.
        
         | wyager wrote:
         | One thing I was surprised to learn about NIR requirements is
         | that it apparently doesn't just mean "dark". I have some coyote
         | brown NIR compliant gear (water carriers etc) and under NIR it
         | has the same shade as grass (which is quite bright, relatively
         | speaking).
        
       | spicymaki wrote:
       | Today's camo is so much better than the red coats the British
       | were wearing in the 18th century. _chuckle_
        
         | chrisseaton wrote:
         | The British red coats were a kind of dazzle camouflage, making
         | it hard to see individuals within the group. People weren't
         | stupid back then - they just had different design goals to what
         | we have now.
        
           | Alupis wrote:
           | Flamboyantly colored uniforms of the time also helped prevent
           | friendly fire. Each volley of musket fire filled the air with
           | a white smoke cloud. [1][2]
           | 
           | [1] https://d1w82usnq70pt2.cloudfront.net/wp-
           | content/uploads/202...
           | 
           | [2] https://www.goonhammer.com/goonhammer-historicals-firing-
           | in-...
        
           | function_seven wrote:
           | "Lieutenant! We're sticking out like sore thumbs here! Why
           | did we go with _bright-fucking-red_ as our uniform colour?
           | The enemy can clearly see us coming! "
           | 
           | "Corporal, your job is to bang on that drum as we march, not
           | complain about military fashion."
        
             | chrisseaton wrote:
             | > We're sticking out like sore thumbs here!
             | 
             | As I just said, the design consideration wasn't to not
             | stick out.
             | 
             | 'Shock action' is a modern military term, but that's partly
             | what they were trying to achieve in those days through
             | visual impact. 'Shatter the enemy's cohesion and will to
             | fight' is something they were trying to achieve through
             | visual impact.
             | 
             | As another example today, think about why the UN paint
             | their vehicles white. It's because their visibility and
             | presence on the battlefield provides a tactical effect.
        
               | seanw444 wrote:
               | > UN
               | 
               | > Tactical effect
               | 
               | Hehe. Last thing I want helping me are Peacekeepers.
        
               | denton-scratch wrote:
               | I didn't think that UN peacekeepers appeared on
               | battlefields - don't they normally stay in their bases,
               | or patrol peaceful areas? There usually has to be some
               | peace before the peacekeepers rock up.
        
               | chrisseaton wrote:
               | > don't they normally stay in their bases, or patrol
               | peaceful areas
               | 
               | The point is they turn up and show they're there to react
               | if needed. You can see they're there because they're
               | painted white.
               | 
               | https://en.wikipedia.org/wiki/United_Nations_Protection_F
               | orc...
               | 
               | I think 60 or so British UN peacekeepers were killed
               | there, for example.
        
               | [deleted]
        
           | omginternets wrote:
           | In addition, C2 was not what it is today, so an important
           | design goal for military uniforms was to distinguish friend
           | from foe on the battlefield.
           | 
           | In the same vein, modern militaries often attach IR strobes
           | to personnel and vehicles to identify them at night. This
           | will likely appear silly in a few years when night optics are
           | pervasive (if that hasn't happened already).
        
           | Spooky23 wrote:
           | Also life isn't a movie. That red dye would be worn away
           | pretty quickly. They probably looked more brown in the field.
        
           | the_af wrote:
           | What advantage would it provide to make it harder to
           | distinguish individual soldiers? Wouldn't their enemies just
           | volley fire into the mass of red coats, instead of picking
           | and choosing?
        
             | Majromax wrote:
             | > What advantage would it provide to make it harder to
             | distinguish individual soldiers?
             | 
             | Distinguishing individual soldiers is an important step in
             | counting the size of a line. Accepting "red coats blend
             | together" as truth, that would make it more difficult for
             | an opposing general to determine which parts of a battle
             | line were stronger or weaker, thus making it more difficult
             | to preposition forces to exploit weak sections.
             | 
             | Once the battle was joined the camouflage effect would not
             | have mattered as much, but before the deployment of radio
             | it was also very, very difficult to change battle plans "on
             | the fly."
        
               | the_af wrote:
               | When determining weaker sections visually, wouldn't you
               | go by "mass" of soldiers? I don't think anybody would
               | count individual soldiers.
               | 
               | In any case, given the technology of the time, if you
               | were beyond engagement range, I don't think you would
               | have been able to pick out individual soldiers by sight
               | regardless of which uniforms they were wearing...
               | 
               | My theory is that vibrant color uniforms were chosen
               | simply to make identification of different formations
               | easier.
        
               | chrisseaton wrote:
               | It helped to identify friend-vs-foe yes, but not
               | formation, as formations were distinguished by the lining
               | of their uniform, which wasn't very visible!
               | 
               | Also red was just an easy colour to get hold of and to
               | dye with, and it hid blood.
               | 
               | The red mass of undistinguished soldiers created an
               | imposing sight on the battlefield. It's not about wanting
               | to hit individuals (why would you?) it's about the shock
               | factor.
               | 
               | This is only infantry as well - where shock action was
               | even more important - cavalry - and distinction didn't
               | apply - you had less uniform more elaborate uniforms.
        
               | Spooky23 wrote:
               | The British had long lines with not too many ranks to
               | maximize delivery of bullets to the enemy.
               | 
               | Figuring out how many where there was harder than it may
               | seem.
        
             | esaym wrote:
             | I don't know, maybe ask a zebra.
        
               | the_af wrote:
               | It's funny because zebra stripes don't make them harder
               | to be seen by lions. There was an article about this on
               | HN, showing the low-res vision of lions cannot tell
               | stripes or no stripes at a distance.
               | 
               | Apparently zebra stripes have more to do with reducing
               | _fly bites_ , among other things.
        
           | throwaway0a5e wrote:
           | Camouflage was absolutely not a goal of 18th century
           | uniforms. When you are wheeling around infantry units like
           | big blocks camouflage is more or less tactically irrelevant.
           | 
           | Furthermore, if they were trying to blend in with each other
           | like one big homogeneous mass of infantry they wouldn't have
           | given everyone hats in a contrasting color.
        
             | chrisseaton wrote:
             | I said _dazzle_ camouflage, and it was.
             | 
             | The goal of their uniforms wasn't to hide individuals
             | within the environment, but to make it hard to discern
             | individuals within the imposing mass of soldiers.
        
               | denton-scratch wrote:
               | That doesn't explain why early-modern generals adopted
               | costumes with extremely distinctive hats. Napoleon's hat,
               | for example, was meant to allow troops to discern him
               | instantly.
        
               | chrisseaton wrote:
               | A leader would want to stand out - this was before long
               | range marksmen would be able to hit them from a distance.
        
               | notatoad wrote:
               | part of the benefit of a distinctive hat is that you can
               | take it off for an instant disguise.
        
         | spicymaki wrote:
         | Just a little context here! I was just adding a little humor to
         | the thread. I did not actually think they were wearing
         | camouflage.
        
       | Rastonbury wrote:
       | Makes me think of active camflague like a cloaking device,
       | probably not practical for military, but give 360 camera,
       | processing and miniaturization technology advancement how hard
       | would it be to make a see through car for instance
        
         | cxcorp wrote:
         | There's a system named ADAPTIV [1] which is essentially a bunch
         | of tiles that can alter their temperature to make a tank look
         | like a civilian car on the infrared band.
         | 
         | [1]: https://www.baesystems.com/en/feature/adativ-cloak-of-
         | invisi...
        
       | spywaregorilla wrote:
       | Spotting dudes in camo seems like a prime opportunity for neural
       | net ar
        
         | qbasic_forever wrote:
         | There's nothing useful to deploy it on though--the 'future
         | soldier' concept of the 90s never went anywhere
         | (https://en.wikipedia.org/wiki/Future_Soldier) and we don't
         | have a computer platform on every soldier. IMHO I'd stick to
         | using machine learning to detect stealth aircraft and missiles
         | to improve intercepting them.
        
           | spywaregorilla wrote:
           | I've heard the javelin missile launchers have been great in
           | ukraine because they can double as night / thermal vision.
           | This concept seems similar to me. Never been on a battlefield
           | but I guess it seems dubious that most modern soldiers don't
           | have some form of digital aid?
        
           | sillysaurusx wrote:
           | Yes and no. Special ops forces could definitely make use of
           | it. The hard part is ensuring the deployment equipment is
           | reliable 99.99% of the time, since bugs on the battlefield
           | get people killed.
        
       | bloqs wrote:
       | Random but does anyone know where to buy a official Crye
       | precision multicam texture for game dev? Their website gives the
       | impression they just sell fabrics to the US market
        
         | chrisseaton wrote:
         | Sounds expensive.
        
       | tiffanyh wrote:
       | I'm somewhat surprised the article didn't discuss "contrast" as
       | it relates to patterns and background.
        
       | some_random wrote:
       | This is a fascinating read that I recommend to anyone interested
       | in modern camouflage.
        
       | mNovak wrote:
       | I'm actually stunned just how effective that MARPAT pattern is
       | compared to the NATO blob camo, in the second image.
        
       | fho wrote:
       | Question (from somebody who only skimmed the article): how much
       | variance exists of that fabric? Is that pattern repeated after x
       | meters if fabric?
       | 
       | If so: wouldn't knowing what to look for greatly increase the
       | ability to automatically extract the pattern from image data?
       | (Like how it is possible to extract signals from below the noise
       | floor in LoRa communication?)
        
       | denton-scratch wrote:
       | I was hoping to learn why the pixelated designs started
       | appearing. Author says they work; but what led anyone to think
       | that those designs might work? Why did they try them in the first
       | place? And actually, _why_ do they work?
       | 
       | I find it bizarre that this is all done by private companies,
       | competing in public competitions, with royalties to be paid for
       | the chosen design. And I'm quite surprised that some designs were
       | found wanting because they don't work under IR (e.g. the soldier
       | shines against the background). That sounds like they're using
       | the wrong dyes; surely a decent design methodology would lead to
       | such problems being remedied by incremental improvement?
        
         | jcranmer wrote:
         | The answers to your first paragraph is in another part of the
         | series:
         | 
         | > Now we can address the Micropattern - digital pixels. These
         | are required to add background noise and texture matching with
         | the background and this is designed to fool with the focal area
         | of the eye - when you are looking directly at or close to the
         | target to make it more difficult to recognize what you are
         | looking at.
        
           | [deleted]
        
         | ryanmercer wrote:
         | >Why did they try them in the first place?
         | 
         | With no knowledge what so ever my gut reaction is to simply
         | point to nature. Leaves get eaten/bitten/broken/ripped, a
         | branch might be in front of another adding depth with similar
         | patterns, rocks and sand in a desert can vary sharply at
         | different focal depths, urban environments can have dozens of
         | materials in use along with random detritus and objects at
         | various focal depths.
         | 
         | Pixilation was probably a logical step towards recreating these
         | varied environments. Look at a ghillie suit that has leaves
         | incorporated, they'll have a pixilated appearance - example:
         | https://static5.gunfire.com/eng_pl_Ghillie-Suit-camouflage-s...
        
           | denton-scratch wrote:
           | Well, that ghillie suit doesn't look pixelated to me - it
           | just looks like it has quite a few straight-sided polygons in
           | it.
           | 
           | Actually, that's what's bugging me most about this camo made
           | from regular square blocks: it looks really easy for a
           | recogniser to spot. No AI <spit>, an old-fashioned neural
           | network would be enough to recognise edges, and then spot
           | squares on a grid.
           | 
           | [Edit] Yeah, I get that your average stag deer doesn't have
           | access to thermal imaging and neural networks. But this is
           | military camo, not deerstalking camo.
        
         | somerandomqaguy wrote:
         | CADPAT works terrifyingly well in the temperate forests of
         | Canada during spring/summer. I had a chance to go try and to
         | spot people wearing CADPAT in the early 2000's and it was a
         | royal pain to try and see them compared to the olive drab or
         | even the US woodland patterns.
         | 
         | Just a fun aside: when Canada invaded Afghanistan, there was a
         | lack of the arid variant of CADPAT. It left soldiers to land in
         | the brown and tan desert wearing vivid green camouflage
         | designed for summer in the Canadian rain forests.
         | 
         | >I find it bizarre that this is all done by private companies,
         | competing in public competitions, with royalties to be paid for
         | the chosen design. And I'm quite surprised that some designs
         | were found wanting because they don't work under IR (e.g. the
         | soldier shines against the background). That sounds like
         | they're using the wrong dyes; surely a decent design
         | methodology would lead to such problems being remedied by
         | incremental improvement?
         | 
         | It was fixed AFAIK. IIRC issued CADPAT clothing were controlled
         | items in 2000's because they had the the treatments designed to
         | work against near infrared. Civilian CADPAT lacked those
         | treatments so companies like Tru Spec[1] could sell it on the
         | open market. There were other teething issues I am aware of;
         | the dyes bleeding into splotches instead of the digital pattern
         | as called for, as well as fading issues after laundering. Fixed
         | of course but it took some iterations.
         | 
         | [1] I just double checked, Tru Spec never sold it. There were
         | some smaller outfits in Canada that produced CADPAT available
         | on the civilian market for short time; Drop Zone Tactical out
         | of Edmonton for sure was one. Rumor mill is that it was
         | material made by Consoltex under military contract that failed
         | to meet the military's specifications and sold off to licensed
         | DND manufactures to recoup costs.
        
           | fartcannon wrote:
           | What was worse, CADPAT or UCP? I couldn't find it in the
           | article. Instinct is that CADPAT was worse, but UCP was just
           | that style without the contrast thus negating one of it's
           | features (disrupting the human shape with high contrast).
        
             | lwansbrough wrote:
             | CADPAT is the basis for MARPAT. It's the most effective
             | generic pattern that has been produced (according to the
             | article.)
        
               | fartcannon wrote:
               | Thanks. Is MARPAT what the Canadian soldiers showed up to
               | Afghanistan in?
               | 
               | Edit: looks like the wore the forest green stuff to
               | Afghanistan. The only articles I can find suggests they
               | did it on purpose, to stand out for peace keeping
               | reasons, but that could easily be damage control. Anyone
               | know the real story? GP suggests they just didn't have an
               | arid design at the time (which I would believe).
        
               | jimmygrapes wrote:
               | I can't comment on Canadian forces, but I can, with some
               | reasonable level of confidence, say that some number of
               | U.S. forces arrived with old forest green BDU pattern
               | (despite the existence and previous use of the "chocolate
               | chip" pattern) simply because that's what we had.
        
           | mikechalmers wrote:
           | > Just a fun aside: when Canada invaded Afghanistan, there
           | was a lack of the arid variant of CADPAT. It left soldiers to
           | land in the brown and tan desert wearing vivid green
           | camouflage designed for summer in the Canadian rain forests.
           | 
           | This is a (kinda funny) plotline in Generation Kill.
        
         | muro wrote:
         | Shining under different light (e.g. IR) is nothing new. I think
         | it was Soviet paint on tanks that was highly visible early in
         | WW2 through a filter.
        
         | retSava wrote:
         | An interesting macro-variant is the Berlin brigade tank camo
         | pattern, which is surprisingly cool! No idea where that comes
         | into uniform camo pattern history nor how efficient it is, but
         | who cares. It's cool beans.
         | 
         | https://en.wikipedia.org/wiki/Berlin_Infantry_Brigade#/media...
        
           | _petronius wrote:
           | Maybe it is related to dazzle camoflauge used on ships?
           | https://en.wikipedia.org/wiki/Dazzle_camouflage
           | 
           | There the goal is less to avoid detection and more to make it
           | hard to determine direction/orientation.
        
             | jabl wrote:
             | My guess would be that the thinking behind it was that in
             | urban environments you have more straight
             | vertical/horizontal lines (houses, roads etc.) and thus
             | wavy camouflage patterns would stand out more from the
             | background.
        
             | rtkwe wrote:
             | Dazzle camo wasn't so much a "hide me" camo as it was a
             | "hide data needed to shot me" camo. It was designed to make
             | it harder to estimate heading and speed so it was harder to
             | calculate accurate shots by submarines and naval guns which
             | needed data about the target ship's speed, distance and
             | heading to calculate an accurate shot.
        
           | kingofpandora wrote:
           | Honestly, the first thing that came to mind was the pattern
           | used on V-2 rockets: https://en.wikipedia.org/wiki/V-2_rocket
           | ...
        
           | cwillu wrote:
           | Wrong photo: this just shows a bunch of disembodied heads
           | floating down a street.
        
         | danielvf wrote:
         | It's not really so much about the pixels being square as the
         | fractal-ish nature of mordern pixel camos that result in a
         | "scale invariance" effect. There's details and contrast at the
         | level of the small pixels, and there's details and contrasts
         | are medium levels, and then again at large levels. Previous US
         | army camo mostly had detail at only one scale level.
         | 
         | As jcranmer says, there's more details on the reasons it works
         | somewhere down in this page,
         | https://www.hyperstealth.com/US4CES-ALPHA/index.html
        
           | Gordonjcp wrote:
           | So basically, "if I make them fractal they look like patterns
           | in nature, and if I scale tiny pixel fractals on screen up to
           | the width of a bolt of cloth they still look like fractal
           | patterns in nature, and if I get it right the details end up
           | about the same scale as details in nature, mostly" kind of
           | thing?
        
           | Sharlin wrote:
           | Exactly. Very very few things in nature actually are made of
           | large blobs of a single color (unless you're very
           | shortsighted). Honestly, it baffles me why militaries didn't
           | realize this earlier.
        
             | hnarn wrote:
             | > it baffles me why militaries didn't realize this earlier
             | 
             | Waffen-SS used dotted camouflage in the late 1930s
             | (Platanenmuster), so depending on what you mean by
             | "earlier" the idea of camouflage without "large blobs"
             | isn't that modern.
             | 
             | The Erbsenmuster from 1944 is an even better example of
             | this type of camouflage.
        
               | Sharlin wrote:
               | Thanks, good info!
        
             | rtkwe wrote:
             | The ability to easily print and create those patterns has
             | likely improved over the years to where it's cheap enough
             | to be worth the mild improvements vs the cost of the
             | printing of the uniforms.
             | 
             | Plus, like another commenter said camouflage is a last to
             | second to last line of defense. Most units aren't moving
             | stealthily in close proximity to their enemy and those that
             | do adopt better camouflage techniques like ghillie suits or
             | using terrain to hide while staying still (eg: waiting to
             | ambush another group).
        
               | Sharlin wrote:
               | As a Finn, my conception of warfare is probably biased
               | towards a specific type that happens in woodlands with
               | short sightlines and lots of natural concealment. Direct-
               | fire engagement distances tend to be short, infantry
               | tactics are informed by the desire to get as close as
               | possible without being seen, and by unit movement
               | (possibly under aerial surveillance) while giving away as
               | little information as possible.
               | 
               | I do think that the Finnish M05 woodland camo [1] is one
               | of the best in the world =)
               | 
               | [1] https://en.wikipedia.org/wiki/M05
        
             | bityard wrote:
             | Source: former military member.
             | 
             | In combat, camouflage is really the VERY last line of
             | defense possible, and a fairly weak one at that. If the
             | difference between staying alive and being dead is the
             | pattern of your clothing, a lot of things have already gone
             | seriously wrong and your chances of survival are not great.
             | 
             | In the grand scheme of things, camo relatively high-hanging
             | fruit. Money and time have mostly been spent on building
             | superior weapons, armor, and of course training. Camo is a
             | very small optimization in comparison and when the Army and
             | Air Force decided to change up their BDU patterns, it was
             | viewed by me and my fellow service members as largely a
             | public image stunt. ("Look everyone, we're modern!")
             | 
             | Edit: to be clear, I'm only referring to uniforms...
             | snipers and such use camouflage netting for example that is
             | tailored to their exact location and can be extremely
             | effective at "hiding in plain sight."
        
               | ncmncm wrote:
               | Snipers need good camo, but the people snipers snipe
               | don't?
        
               | samstave wrote:
               | I just had a really odd thought cross my head and want to
               | just document here before I forget it:
               | 
               | The way rifles work with recoils driving the expulsion of
               | a shell after firing and using that force to load the
               | next round to chamber (the famous AK47 design)
               | 
               | --
               | 
               | Would there be a method of attaching a compressed water
               | bottle with valve with a donut nozzle with vents out at
               | angles to the optimal suppression of the muzzle flash.
               | 
               | The idea being that, like a paintball gun, the machine's
               | trigger pull, also has a tangential trig that pulls an
               | outburst a micro second from the rifle, in a ring mist of
               | water/(some more expensive, toxic military fire-
               | suppressant (ironic) to reduce the muzzle flash on
               | shot...
               | 
               | May it reduce the muzzle flare? or is it too weak? Should
               | it launch behind muzzle, after muzzle?
               | 
               | The bullet down the barrel triggers the valve when it
               | hits 50% of barrel length. Once that induction occurs, it
               | triggers the valve, and the flame suppressant cloud is
               | spit out micro seconds prior to bullet breach...
               | 
               | ---
               | 
               | I am convinced that we can use Davincis micro fluidics...
               | turbulence drawings.
               | 
               | ----
               | 
               | So let talk about next gen firing
               | 
               | The barrel release could be routed to drive the exhaust
               | through channels which drive micro-turbine motors that
               | slurp back through the external of barrel and infuse with
               | water.
               | 
               | Working on this in Solid
        
               | mechanical_bear wrote:
               | I think TempleOS started in a similar fashion...
        
               | samstave wrote:
        
               | sandworm101 wrote:
               | In all honesty, there isnt much room to improve the
               | actions of modern assault rifles. There are dozens of
               | post-stoner improvements that have bern tried. Millions
               | have been spent on them. They have all been shelved as to
               | complex or cumbersome. The gas-operated rotating bolt is
               | so elegant, so reliable, that fundimental improvements
               | are hard to imagine.
               | 
               | Adding water to the equation? Rust, mud, weight, boiling
               | ... you would need some radical improvements to justify
               | such added complexity.
        
               | akerl_ wrote:
               | You're basically describing "muzzle brakes and flash
               | suppressors, but with more components to refill/repair"
               | 
               | Separately, using the force of the round (either via a
               | gas tube or via direct rearward motion) to propel the
               | action of the firearm isn't really an AK47 thing, it's
               | common to all semi automatic rifles and predates the AK47
               | by quite a while.
        
               | abrokenpipe wrote:
               | A flash hider such as a "3 prong" achieves the same
               | affect with no moving parts, also suppressors can pretty
               | much eliminate all flash and offer hearing protection and
               | additional signature reduction by reducing the db levels
               | and changing the pitch of the noise.
        
               | samstave wrote:
               | I want to compare the modern versions of suppressions
               | with the old designs of one-way-fluidic valves.
               | 
               | The reason:
               | 
               | Davinciy was cabable of documenting the vortices of
               | variues pulses of fluidicsbut the vortices expecticed
               | creates the fluid dynamics
               | 
               | Hopw the fuck in 400 years have these guys come NOT up
               | with better?
               | 
               | I dont trust a single structural eng.
        
               | rtkwe wrote:
               | Yeah for a fraction of the cost in complexity, weight and
               | issues with consumables a suppressor does all of what
               | they were talking about and more. The US army is in
               | theory going to a new rifle and issuing suppressors to
               | every (frontline) infantry unit with the NGSW contract.
               | 
               | (We'll see how widely the new system and everything
               | actually gets deployed but it was an important part of
               | the whole program at least)
        
               | Sharlin wrote:
               | Why not just build one in? I guess I'm accustomed to
               | assault rifles having flash suppressors because the one
               | that I've actually handled and lugged around and shot
               | with, the Valmet RK 62, does have a suppressor built in,
               | a distinctive feature [1].
               | 
               | [1] https://en.wikipedia.org/wiki/RK_62
        
               | avereveard wrote:
               | Possibly length is a factor
        
               | rtkwe wrote:
               | I'm not seeing anything about a built in sound suppressor
               | just a flash suppressor which is a fairly common feature
               | on modern assault rifles and their civilian variants. You
               | don't generally build in a suppressor because they're
               | technically wear items as the hot gases will slowly erode
               | the baffles over time. That plus their extra weight and
               | cost meant most militaries only issued them to units that
               | were built for stealth missions in the past.
        
               | Sharlin wrote:
               | Ah, when you said "suppressor" I thought you meant "flash
               | suppressor" but rereading I realize you meant "sound
               | suppressor" like the GP.
        
               | Sharlin wrote:
               | I don't think muzzle flash is a big problem in today's
               | rifles. Any powder left burning by the time the bullet
               | exits the barrel is wasted energy, so things tend to get
               | optimized pretty thoroughly (this is the field of
               | internal and transitional ballistics). Carbine-length
               | firearms (if they're chambered for rifle rounds) do tend
               | to have bigger issues with muzzle flash. Flash
               | suppressors [1], either integrated or add-on, help and
               | have exactly zero complexity compared to a hypothetical
               | water mister.
               | 
               | [1] https://en.wikipedia.org/wiki/Flash_suppressor
        
               | jollybean wrote:
               | In the first phase of Ukrainian war soldiers were firing
               | a lot of line of sight, it does matter. And especially
               | the IR / night vision opportunities are real.
               | 
               | It's very 'low hanging fruit'. It's ridiculous that that
               | a 20 Trillion dollar Army has 'camouflage' that is very
               | clearly crap next to better camo.
               | 
               | These tests could have literally been run in a day, even
               | back in the 1950s.
               | 
               | Some soldiers, some screens, a few cameras, some changes
               | in lighting and it would have been evident.
               | 
               | Moreover, it's reasonable to be suspect in whether an
               | organization that can't handle such a basic R&D task is
               | going to be able to handle the more complicated things.
        
               | jcranmer wrote:
               | There are, it seems, a few aspects that went into the
               | seemingly-obviously-poor decision to go with UCP.
               | 
               | The first is that the criteria that appears to have been
               | most important was performance in near-IR (i.e., night
               | vision). Humans can't see in NIR themselves, so it's not
               | readily apparent that the UCP is actually _pretty good_
               | camo in NIR conditions. It 's pretty atrocious in visible
               | light, though.
               | 
               | The second is the requirement that the camo pattern be
               | good in all environments. And "standard" woodland
               | patterns to be utterly horrendous in sandy desert
               | environments, while desert patterns do similarly bad in
               | woodland environments. And you can see how something like
               | the UCP might score well--while it's not a good camo
               | pattern for any visible pattern, it sticks out less than
               | a standard woodland in desert or vice versa. Of course,
               | there were other patterns at that time that performed
               | strictly better than UCP in all environments (save NIR).
               | 
               | The main kicker, though, is that the winning pattern
               | seems to have been constructed out of elements of all the
               | participating patterns... with no follow-up work done to
               | make sure that the resulting combination _actually
               | worked_. As you say, this is where some tests would have
               | saved an awful lot of embarrassment, and my suspicion is
               | these tests were not run for either time or money
               | reasons. (And yes, this is a false economy here, but it
               | 's one that I can really believe bureaucracies pursuing).
               | 
               | There is historical precedence for this kind of short-
               | sightedness however: the Mark 14 Torpedo, the main
               | torpedo the US used in WW2. Which didn't work, and the
               | Navy's Board of Ordnance took a couple years (and
               | ultimately an unsanctioned live-fire test demonstrating
               | that it didn't work) to be convinced that they actually
               | didn't work rather than the submariners being packs of
               | incompetent morons.
        
               | lupire wrote:
        
               | Axien wrote:
               | With thermal imaging, do snipers still rely on
               | camouflage?
        
               | Sharlin wrote:
               | Good camo is broadband. Camo nets, ghillie suits help
               | spread and dissipate a thermal signature, making it more
               | difficult to pick up from the noise. And unless you have
               | a JWST and know exactly where to point it (and obviously
               | the whole idea of snipers is that you _don 't_ know),
               | good luck trying to find a human head-sized target that's
               | a klick away from you.
        
               | tablespoon wrote:
               | > With thermal imaging, do snipers still rely on
               | camouflage?
               | 
               | Does everyone on a battlefield have thermal imaging? Even
               | if there's a technology X that can defeat Y, if X can't
               | be deployed widely, then X can still be useful.
        
               | sandworm101 wrote:
               | >>In combat, camouflage is really the VERY last line of
               | defense possible
               | 
               | Current military member here. It is also the first line
               | of defense against fratricide. It means your friends can
               | tell you from the not-friends. A distinct pattern, unique
               | to your organization, is what stops aircraft from
               | dropping on you. So as current patterns trickle out into
               | private hands, eventually every military organization
               | needs to update its look.
        
             | tomcam wrote:
             | Sadly I'm a large blob of a single color
        
           | denton-scratch wrote:
           | Well, I'm now much better informed!
           | 
           | It does sound as if there's not much methodology in this
           | business, beyond empirical testing. Like, is there a science
           | of 'camouflagology'? [oops, when inventing words, never mix
           | latin and greek]
           | 
           | It just seems like it's basically lore, gathered from talking
           | to fgillies and field experience, augmented by tests (which
           | may be omitted, or the results ignored). Anyway, it might be
           | fun to take a minor in camouflagology.
        
             | mindcrime wrote:
             | _Like, is there a science of 'camouflagology'? [oops, when
             | inventing words, never mix latin and greek]_
             | 
             | I don't know if there's a more specific term or not, but
             | camouflage is studied (along with other things) under the
             | general subject of "Crypsis".
             | 
             | https://en.wikipedia.org/wiki/Crypsis
             | 
             | Note that this seems to be more particularly about natural
             | forms of camouflage / etc., as opposed to military
             | camouflage used by humans. But the two areas are clearly
             | related.
             | 
             | Regardless of what you call it, it does appear that there
             | is some science that goes into at least some aspects of
             | this. See, for example:
             | 
             | https://phys.org/news/2021-01-camouflage-arbitrary-
             | environme...
        
           | s1artibartfast wrote:
           | That still doesnt answer the question of why pixels.
           | 
           | You can scale invariance and fractals with squares,
           | triangles, or whatever shape you want.
        
             | shawabawa3 wrote:
             | > "Pixels have minimal impact on the ambient vision but a
             | large impact on the focal cone causing further delay as the
             | brain attempts to process the increased detail, when
             | pixelation in camouflage is done correctly (color and
             | scale) the brain will confuse the background noise with the
             | pixels, removing the anomaly as a threat or delaying the
             | identification of a threat. (6)"
        
               | s1artibartfast wrote:
               | I read that as having more to do with the length scale of
               | features represented by the pixels than the shape of the
               | pixel itself.
               | 
               | From the biological perspective, the same phenomenon
               | should happen with dots or triangular shapes
        
             | blt wrote:
             | Maybe it's easier to implement the pattern generation
             | algorithm for pixel output?
        
         | adolph wrote:
         | _In development since 1983, the camo saw no use in the field
         | until it was deployed during the first Gulf War (1990-1991)._
         | 
         |  _The purpose was to disrupt primitive Soviet-era night vision.
         | The grid pattern was intended to interfere with the generated
         | grid used by these devices for targeting._
         | 
         |  _Even after plenty of research I could find no cases of this
         | pattern ever disrupting anything. By the early 90's, night
         | vision technology had progressed greatly and this green grid
         | was completely ineffective. There is even some anecdotal
         | evidence it made detection easier!_
         | 
         | https://guide.sportsmansguide.com/gulf-war-desert-night-camo...
        
         | nonrandomstring wrote:
         | Pattern is only one small factor. It's usually taken to be
         | "Surface" in the list:
         | 
         | - Shape
         | 
         | - Shine
         | 
         | - Shadow
         | 
         | - Speed
         | 
         | - Surface
         | 
         | - Silhouette
         | 
         | - Spacing
         | 
         | - Smell
         | 
         | - Sound
        
         | guessbest wrote:
         | I personally find the who camouflage switch to every branch of
         | service, including the navy to be bizarre. Who thought it was
         | good idea for navy seamen to be camouflaged in the water? With
         | that line of reasoning why didn't the airforce get their own
         | camouflage to look like a flight line? hah
         | 
         | > After six years in the fleet and some controversy, the blue-
         | and-gray cammies could be headed for Davy Jones' seabag.
         | 
         | https://www.navytimes.com/news/your-navy/2016/04/23/the-navy...
        
           | Gordonjcp wrote:
           | > why didn't the airforce get their own camouflage to look
           | like a flight line^W^W bar stool?
           | 
           | ftfy
        
           | NovemberWhiskey wrote:
           | The Air Force did get their own camo - the ABU (Airman Battle
           | Uniform) digital tiger-stripe; based on a Vietnam-era tiger-
           | stripe uniform but with a color palette similar to the UCP;
           | only with more blue.
           | 
           | In fact, it's not just their own camouflage pattern, the ABU
           | actually had a distinctive blouse and pants that are
           | different from the BDU that came before, or the ACU that the
           | Army had adopted. Then they took the sage-green fleece from
           | ECWCS Gen III (what the Army was wearing), and added the
           | APECS Goretex parka that the Marine Corps was wearing, only
           | in the ABU tiger-stripe rather than MARPAT.
           | 
           | Most of the actual battlefield airmen (i.e. the people who
           | might reasonably expect to find themselves in combat
           | conditions where camouflage could help like combat
           | controller, TACP, PJ) didn't wear it anyway.
           | 
           | As pointed out elsewhere, this is very largely about esprit-
           | de-corps in the context of a military organization, even if
           | your job is actually avionics maintenance or personnel.
           | 
           | It does seem like a huge waste for all the services to have
           | their own completely distinctive utility uniforms though -
           | the pendulum is swinging back the other way now with the
           | Army, Air Force and Space Force all back in the redesigned
           | ACU/OCP with stitching color (black/spice-brown/blue) as the
           | service-distinctive element.
        
             | volumetric wrote:
             | I don't get why the branches in which very few folks are
             | likely to need camo (basically anyone other than the army,
             | then, and some sub-divisions of other branches like the
             | marine corp) don't go with old-school olive drab or navy or
             | something. Those single-color uniforms with a slightly
             | dressy cut looked damn slick. I'd think that'd be better
             | for recruiting or improving morale or whatever than the
             | camo uniforms (which, often as not, are the butts of jokes
             | and not considered at all appealing)
             | 
             | Then again, maybe those old styles only looked good when
             | they were made with nice materials, like wool and heavy
             | waxed canvas, and would look bad with cheap modern
             | synthetics.
        
               | imwillofficial wrote:
               | As a sailor, I always really liked the Coast Guards
               | working uniform.
               | 
               | Simple, effective, dare I say elegant.
        
               | NovemberWhiskey wrote:
               | >camo uniforms ... _which, often as not, are the butts of
               | jokes and not considered at all appealing_
               | 
               | I think you'll find they're pretty appealing to a lot of
               | the people who want to be in the military.
        
               | jcranmer wrote:
               | One advantage of camo uniforms for working utility
               | uniforms is they tend to be effective in hiding things
               | like grime and mud, which consequently means you need to
               | launder them less frequently to keep up the same
               | appearance. If you've got a solid single-color uniform,
               | chances are that these will stick out like a sore thumb.
               | That was one thing that sailors liked about the old US
               | Navy NWU (the one that camouflaged you very effectively
               | if you fell in the water)--really good at hiding paint
               | drips.
               | 
               | With regards to looking good, I don't think it's
               | necessarily that the look good with appropriate
               | materials, but more that they look good only when they
               | are properly starched and the like to maintain crisp
               | lines.
        
               | jessaustin wrote:
               | _...camouflaged you very effectively if you fell in the
               | water..._
               | 
               | This seems good in some situations and very bad in
               | others?
        
           | Taniwha wrote:
           | I think that seeing 'Space Force' going around in camo is
           | even more asinine ....
        
             | imwillofficial wrote:
             | Space force is still in many ways still a child of the Air
             | Force, and follow Air Force uniform refs.
        
               | jcranmer wrote:
               | Space Force does have its own dress uniforms.
        
           | imwillofficial wrote:
           | Former US sailor here. The "camouflage" blue is no longer in
           | use, but when it was, we jokingly referred to each other as
           | "ocean warriors". The reasoning for why this pattern was
           | chosen for working use, was that it hid oil stains and fresh
           | paint really well, letting you wear the uniform longer.
           | 
           | The reality? Some politician or admiral wanted to leave their
           | mark.
        
           | nordsieck wrote:
           | > I personally find the who camouflage switch to every branch
           | of service, including the navy to be bizarre. Who thought it
           | was good idea for navy seamen to be camouflaged in the water?
           | With that line of reasoning why didn't the airforce get their
           | own camouflage to look like a flight line? hah
           | 
           | Not everything the military does is about effectiveness.
           | Sometimes senior NCOs want the enlisted to "look military",
           | not just be effective.
           | 
           | Here's another example: why is the military PT (physical
           | training) test varied by sex and age? If it was only about
           | combat effectiveness, presumably there'd be 1 set of values
           | that determine if someone had sufficient fitness relative to
           | the rigors of combat (or whatever their job requires).
        
             | rtkwe wrote:
             | In addition to things other people have said there's a lot
             | of roles that aren't combat so increasing the number of
             | women who can qualify can fill out those roles (logistics,
             | the reams of sundry clerical work, maintenance, etc) where
             | physical strength isn't as critical helps fill out a
             | volunteer army.
        
               | jcranmer wrote:
               | There's a concept called 'tooth-to-tail ratio' which is
               | the ratio of combat personnel to non-combat personnel in
               | an army. The modern US army has a tooth-to-tail ratio of
               | about ~1:8. This isn't necessarily a great correlation to
               | physically demanding versus not-physically-demanding
               | jobs, it does illustrate how tiny the front-line portion
               | of the military actually is.
        
             | rcurry wrote:
             | The new Navy camouflage is designed to keep your uniform
             | looking clean when you are working around paints and oils
             | and so on. It's purely for workplace aesthetics and not
             | intended to hide you from anyone.
        
             | Retric wrote:
             | It was a diagnostic test. Like how a loss of fuel
             | efficiency is a sign that something is wrong with an
             | engine, if someone can't meet the standard something has
             | gone wrong. Which is why it was treated as a pure pass
             | fail.
        
               | imwillofficial wrote:
               | It's a standards test, where failing can potentially get
               | you kicked out. While also used as a diagnostic to let
               | you know if you're slipping, its primary and only stated
               | purpose is to uphold an objective standard.
               | 
               | This makes variations by age and sex concessions to that
               | goal, rather than design elements.
        
               | Retric wrote:
               | The standards test is different. Occupational Physical
               | Assessment Test results are Unqualified, Moderate,
               | Significant, or Heavy which is then used to decide if
               | someone meets an appropriate standard.
               | 
               | Meanwhile the Army would sometimes retain people
               | incapable of passing the old age and gender standard. As
               | an extreme example people with missing limbs could be
               | retained.
        
           | ARandomerDude wrote:
           | Much of this is service pride, politics, and recruiting. If
           | the other services switch and you don't, your service looks
           | dated, boring, and irrelevant.
           | 
           | Imagine the JavaScript cool kid mindset but with guns.
        
             | russellbeattie wrote:
             | > _Imagine the JavaScript cool kid mindset but with guns._
             | 
             | A more terrifying sentence than this has rarely been
             | written.
        
               | imwillofficial wrote:
               | The table stakes are uniforms here, lets not blow it out
               | of proportion.
        
         | hinkley wrote:
         | During the I-for-get-which war, the army hired color-blind
         | spotters because the enemy camo turned out to be fooling fully
         | sighted people but was less effective with red-green color
         | blindness. I don't recall if it was texture or contrast issues
         | but they stood out against the trees and shrubbery enough to
         | locate.
         | 
         | So we not only have to worry about invisible spectra, but some
         | filters on visible light may reveal the target as well.
        
           | evan_ wrote:
           | This was used in Vietnam. My neighbor growing up had this
           | condition and was a spotter in Vietnam. He'd be flown over
           | areas of jungle in a helicopter and he would be able to
           | easily spot camouflaged structures. He would then photograph
           | them and mark up what he saw. He parlayed this experience
           | into a successful career in photojournalism after he got out
           | of the military.
        
           | rcurry wrote:
           | That's kind of like hunters who buy expensive camo and then
           | their wife washes it with laundry detergent that contains
           | brightening agents. To human eyes it still looks like camo,
           | but to the deer you end up looking like Barney the Dinosaur.
        
           | bluGill wrote:
           | Very real issue. My uncle used to be a big hunter (he died a
           | couple years ago), and could never see other hunters wearing
           | the required blaze orange, but when they were wearing
           | camouflage he had no problem seeing them in the woods.
           | 
           | I have lots of other stories about the wierd things color
           | blind people see and don't see. (My sisters are color blind,
           | none of my family sees colors exactly the same, makes for
           | some weird situations)
        
             | ncmncm wrote:
             | Funny, considering most game animals are color-blind.
        
           | outworlder wrote:
           | If that works, wouldn't wearing glasses to filter out some
           | wavelengths work just as well?
        
             | ncmncm wrote:
             | Removing light reduces vision. Color-blind people pick up
             | all the photons, they just don't distinguish them.
        
         | kodah wrote:
         | MARPAT is a very well documented case:
         | https://en.wikipedia.org/wiki/MARPAT In its case, it was chosen
         | because the blocks actually blend very well into environments
         | when viewed from a distance.
        
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