[HN Gopher] The $20 an hour Cessna 172 experiment (2020)
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       The $20 an hour Cessna 172 experiment (2020)
        
       Author : BWStearns
       Score  : 223 points
       Date   : 2023-02-09 18:07 UTC (4 hours ago)
        
 (HTM) web link (airfactsjournal.com)
 (TXT) w3m dump (airfactsjournal.com)
        
       | inamberclad wrote:
       | This is what we need to make GA an accessible hobby again.
        
       | bischofs wrote:
       | What the FAA has done to this guy is disgusting, they don't
       | respond to requests and treat him like a little guy despite the
       | impressive engineering here. I'm not a republican but this is a
       | great example of government destroying innovation and progress
       | through bureaucratic nonsense.
        
         | matt_morgan wrote:
         | My heart wants to agree with you but all those regulations must
         | have something to do with how few people die in airplane
         | crashes. It's like the textbook case of when regulations work,
         | and I don't think the FAA has a department of special
         | exceptions. We can wishfor it, but it's not easy to handle
         | someone who wants to do something different.
        
           | ericbarrett wrote:
           | Commercial aviation, sure. General aviation, e.g. a private
           | pilot flying a Cessna 172 as in the article, is about as
           | deadly per-mile as riding a motorcycle: far more dangerous
           | than driving a car the same distance.
        
             | outworlder wrote:
             | > Commercial aviation, sure. General aviation, e.g. a
             | private pilot flying a Cessna 172 as in the article, is
             | about as deadly per-mile as riding a motorcycle: far more
             | dangerous than driving a car the same distance.
             | 
             | Others have touched on the probability thing.
             | 
             | The issue with motorcycles is that a some of it is under
             | your control (driving safely, protective gear, bike
             | maintenance) but there's a lot that isn't: potholes, other
             | drivers, animals and so on.
             | 
             | Flying, almost everything is under the pilot's control.
             | That includes most plane failures. Good preflight and
             | maintenance takes care of most issues. The rest is taken
             | care of by the flight planning - for example, engine
             | failures. You should always have a place to put down the
             | plane at any moment if you lose an engine - and general
             | aviation aircraft land pretty slow.
             | 
             | Newer advancements have made it even safer (see also, whole
             | frame parachutes).
             | 
             | That basically leaves freak accidents; they are a minority.
             | Go spelunk the NTSB database, you'll find most accidents
             | were preventable.
             | 
             | In a nutshell, you are probably going to find the risk is
             | very skewed by complacent or otherwise irresponsible
             | pilots.
        
             | p1necone wrote:
             | The usage of 'per-mile' stats for aircraft safety irks me a
             | little bit. It's certainly not how I think of safety when I
             | hop on a plane - my internal comparison is more based on
             | time - like, I'm about to spend 30 minutes on a plane, how
             | much safer/less safe is that vs 30 minutes in a car?
             | 
             | The distance comparison also doesn't make sense because
             | it's not like you could drive across the ocean even if you
             | tried.
             | 
             | I guess it makes sense in terms of aggregate safety for a
             | population for transport planning, but on an individual
             | level it just doesn't communicate what I want to know.
             | 
             | Edit: for an analogy - imagine if someone invented faster
             | than light space travel, but 25% of passengers don't
             | survive the trip. The deaths per 100 miles statistic would
             | be _amazing_ compared to both car and air travel, but would
             | you sign up for a ticket?
        
               | cmeacham98 wrote:
               | The distance comparison does make sense, because the
               | point of getting on a plane/car is to travel. People
               | don't say "I'm going to drive for 30 mins", they say "I'm
               | going to drive from Los Angeles to NYC". Comparing how
               | dangerous that is on a plane requires comparing by
               | distance, not time.
        
               | p1necone wrote:
               | Eh, not really. Distance travelled !== quality of
               | destination.
               | 
               | I can travel X minutes on a plane for Y cost to one set
               | of destinations, or I can travel A minutes in a car for B
               | cost to a different set of destinations. The actual
               | distance between my current location and my destination
               | means _nothing_ to me, although the potential
               | destinations do, which certainly are more varied with
               | plane travel.
               | 
               | But I live in a pretty nice place, so travelling locally
               | is pretty good too.
        
               | cmeacham98 wrote:
               | We're comparing safety, not "quality of destination".
               | 
               | If you were to travel from point A to point B, and wanted
               | to know whether driving or flying was safer, then the
               | correct metric to look at is the "per distance" one.
        
               | bitdivision wrote:
               | Agreed.. Though it's an often used metric: fatalities per
               | billion kilometers (f/bnkm).
               | 
               | Someone told me that risk per unit distance was higher
               | when walking than riding a motorcycle, which I thought
               | sounded like it could be possible. Sadly it seems its not
               | true [1].
               | 
               | Interesting how f/bnkm is so low for driving vs walking
               | though.
               | 
               | [1]: https://www.normalizecycling.com/risk-in-
               | cycling/units-of-ri...
        
               | anamexis wrote:
               | I would guess the majority of time in general aviation is
               | not for the purpose of travel. It's a hobby.
        
               | hollerith wrote:
               | A lot of it is to give pilots the experience they need to
               | qualify to fly commercial airliners, also.
        
               | cmeacham98 wrote:
               | If you're assuming it is a hobby then comparing it to
               | car/motorcycle usage for travel is useless/invalid.
        
               | anamexis wrote:
               | Yes, exactly.
        
               | tormeh wrote:
               | The point is, being a hobby pilot is extremely dangerous.
        
               | anamexis wrote:
               | Is it?
               | 
               | In US General Aviation, there were 332 deaths in
               | 19,454,467 flight hours in the year 2020.
               | 
               | https://www.ntsb.gov/news/press-
               | releases/Pages/NR20211117.as...
        
               | ineedasername wrote:
               | _> Is it?_
               | 
               | Yes, it is.
               | 
               | Very similar to how dangerous motorcycle riding is. Work
               | out approx. hours of operation from miles driven (say
               | avg. 30-50mph) and from there use annual fatalities. [1]
               | Given that, death-per-hour for 332 deaths/19M in flight
               | hours is roughly comparable to the 6000 deaths seen in
               | motorcycle accidents. Much higher than automobiles, much
               | higher than commercial flight.
               | 
               | [1] https://www.iii.org/fact-statistic/facts-statistics-
               | motorcyc...
        
               | anamexis wrote:
               | Ok, so per hour it is comparable to motorcycles. But
               | consider also that the average private pilot only flies
               | 100-150 hours per year.
               | 
               | I don't disagree that it is more dangerous than
               | automobiles or commercial flight. But I wouldn't
               | characterize it as "extremely dangerous." Nor would I
               | characterize motorcycles as such.
        
               | ineedasername wrote:
               | I guess we disagree on motorcycle danger then. I consider
               | motorcycles to be extremely dangerous (mostly to their
               | drivers). A friend of mine dies about 1.5 years ago on
               | one. I'd had two other people (not as close) in my life
               | die in motorcycle accidents so I used to cringe inside
               | every time he told me he was going riding over the
               | weekend, though I would just wish him well & to be safe.
               | Riding made him happy, was a stress reliever for him. And
               | as far as that goes there are probably worse habits like
               | smoking & drinking to excess, but that doesn't make any
               | of them non-dangerous.
        
               | Dylan16807 wrote:
               | Google says "motorcycles are usually ridden for around
               | 3,000 miles per year on average" so that's less than a
               | hundred hours. Another result says the median is 1000 and
               | 90th percentile is around 5000.
               | 
               | Neither one is "extremely" dangerous but it's a far cry
               | from "all these strict regulations make it extremely
               | safe" like with commercial flight.
        
               | oldgradstudent wrote:
               | Assuming all hours were flown at Cessna 172 cruise speed
               | of 140mph, that gives about 2e7 * 140 = 2.8e9, divided by
               | 332 gives about 8.4 million miles per fatality.
               | 
               | Compared to 85 million miles travelled per fatality on
               | the roads in general, and about 4 million miles travelled
               | per fatality on motorcycles.
               | 
               | 2X better than motorcycles, 10X worse than road
               | fatalities in general.
               | 
               | And that's being quite generous about the mileage.
        
               | anamexis wrote:
               | I don't think miles travelled per fatality is a useful
               | point of comparison for general aviation. This puts it
               | about on par with pedestrian deaths per mile travelled,
               | and I don't think most people would call walking
               | "extremely dangerous."
        
               | TylerE wrote:
               | Being a lazy hobby pilot is dangerous. The majority of GA
               | crashes are pretty basic pilot error/"gotta-get-there-
               | itis".
               | 
               | Motorcycles are the same way, actually. An overwhelming
               | amount of fatal motorcycle accidents involve alcohol at
               | night, usually in combination with not wearing proper
               | gear.
        
               | someweirdperson wrote:
               | Bikers frequently get killed by other forms of traffic
               | (at least as a major contributing factor), pilots
               | typically kill themselves (usually unintentionally, of
               | course), with rare exceptions.
        
             | ROTMetro wrote:
             | Have you even looked into the history of aviation and why
             | we have the FAA? Thes homebrew airplanes were falling out
             | of the sky all over the place. A lot of people were dying.
        
           | rippercushions wrote:
           | Obligatory link to why the FAA maybe should have a couple of
           | special exceptions.
           | 
           | https://philip.greenspun.com/blog/2011/06/16/revitalizing-
           | th...
        
           | KennyBlanken wrote:
           | The crash/death rate for piston general aviation is
           | staggeringly high and a lot of it has to do with how
           | unreliable ancient systems in the planes are, and task
           | saturation from pilots still expected to manage stuff like
           | fuel mixture settings by hand.
           | 
           | It's almost entirely about protectionism of a massive
           | industry of rebuilding and servicing companies for ancient
           | engines and electromechanical systems, not safety or
           | reliability.
           | 
           | Compare a modern electronic gyro to its electromechanical
           | cousin. The electromechanical version is unreliable, power-
           | hungry, and extremely expensive to service.
           | 
           | The modern electronic equivalent is ultra-reliable, can self-
           | test, needs no servicing or repair, can contain its own
           | battery to self-power in an emergency, and be networked with
           | other devices in the cockpit.
           | 
           | Want to put the electronic version in your plane? Ooooo,
           | sorry, no can do, Mr. Airplane Owner, says the FAA. Can't
           | hurt the profits of an entire industry dedicated to emptying
           | your wallet of thousands of dollars every time your gyro
           | needs to be rebuilt.
           | 
           | A modern fuel-injected, water-cooled airplane engine can run
           | constant self-diagnostics and logging, and provide highly
           | useful, actionable information to both the pilot and
           | mechanic. It's single-lever, increasing reliability and
           | reducing task loading during the most critical phases of
           | flight, and reducing emissions substantially, too. It doesn't
           | have special considerations in terms of flight profiles; air-
           | cooled piston airplane engines require a gentle descent
           | profile or they will be "shock cooled" and undergo high wear
           | or outright seize. There are no issues with carb freeze.
           | Starting is a breeze, instead of a chore. The list goes on.
           | 
           | We should be encouraging the hell out of EFI conversions and
           | EFI engine options...but instead the FAA buries them all
           | under mountains of paperwork and regulations to protect
           | Lycoming and the like.
        
           | vkou wrote:
           | > My heart wants to agree with you but all those regulations
           | must have something to do with how few people die in airplane
           | crashes.
           | 
           | Very few people die in large commercial aviation crashes, but
           | the hobbyist pilot space is a graveyard. ~400 deaths/year in
           | the US, ~13 deaths/100M miles traveled. Meanwhile, commercial
           | aviation is closer to 0.002 deaths/100M miles traveled.
           | 
           | Incidentally, the FAA rules around general aviation are a lot
           | more relaxed than they are around commercial aviation. As a
           | landlubber who occasionally spends a week geeking out about
           | planes, but would never own one, their rules don't really
           | seem to be ridiculous.
        
           | tysam_and wrote:
           | GA is extremely dangerous, piloting runs through part of my
           | family and single-engine aircraft are for the post-
           | midlife/retirement crisis that many pilots go through. It
           | also is their deathbed.
           | 
           | One family member was at breakfast that morning with several
           | other pilots, all of whom had private aircraft except him (he
           | is a voracious pilot, though). Every single one of them
           | apparently had some extremely harrowing stories about engine
           | failure, etc. Every one of them.
           | 
           | It's not a game, and the FAA is really sleeping on the
           | private sector as far as I understand. Its dying under
           | bureaucracy.
           | 
           | To respond to the parent comment as well -- I don't think
           | this is a 'Republican', 'Democrat', or even a 'Libertarian'
           | issue. All three of those parties have weaknesses that tend
           | to screw over this kind of organization -- the first two with
           | extremely bloated processes, and the second with perhaps far-
           | too-little regulation.
           | 
           | This is the kind of org that just needs good leadership with
           | integrity and funding that focuses on getting the little guys
           | up and out there, as well as promoting development and having
           | _very strict_ best practices for safety. It's a very hard
           | blend to do right, I think. Sorta a combination of reducing
           | bloat and inferred/accidental corruption, etc, I think.
           | 
           | (not to get terribly political, I do not like politics at all
           | personally. Just talking through the technical points of the
           | matter as much as I can. Much love! <3 <3 <3 <3 :)))))) :D :D
           | :)))))) )
        
           | ineedasername wrote:
           | _> must have something to do with how few people die in
           | airplane crashes_
           | 
           | Yes, at least somewhat:
           | 
           | 1) The safety record of flying is often cited but that safety
           | record pertains to commercial aircraft, not private aircraft.
           | For hours of travel, private aircraft are significantly more
           | lethal commercial flight and even more than driving [1]
           | 
           | 2) The article mentions having to jump through regulatory
           | hoops in the same sentence as literally putting out engine
           | fires. Maybe the two are unrelated but I can see a strong
           | public to regulatory hoops on something that, if done wrong,
           | amounts to a small homemade fuel air bomb with 1,000lb+ of
           | cessna debris added in to the mix if things go wrong.
           | 
           | [1]https://www.wijet.com/private-jet-crash-
           | statistics/#:~:text=....
        
             | kragen wrote:
             | a fuel-air bomb is very much more difficult to build than
             | you think it is
             | 
             | it isn't going to happen by accident
             | 
             | right now lots of people are getting exposed to fumes from
             | both leaded gasoline itself and the combustion products
             | from the engines, which probably kills more people than
             | faulty civil aviation engines ever will
        
               | ineedasername wrote:
               | Yes sure, it's not literally a military-grade thermobaric
               | explosion. It's a few hundred lbs of fuel strapped to a
               | 1,000lb+ airframe and I don't mind regulations and
               | oversight of such things when people want to propel them
               | through the air.
               | 
               | As for the rest, I agree...? I'm not sure how that was
               | related. I think a dislike for leaded fuel is not
               | incompatible with my comments indicating that some
               | regulatory hoops are reasonable when creating customized
               | aircraft.
        
               | Dylan16807 wrote:
               | > I don't mind regulations and oversight of such things
               | 
               | Do you think anyone is arguing against the existence of
               | plane regulations?
        
               | outworlder wrote:
               | It is not going to explode any more than a car will.
               | 
               | It may catch on fire, though.
        
           | voldacar wrote:
           | You are demonstrating a lot of status-quo bias
        
           | pdonis wrote:
           | _> all those regulations must have something to do with how
           | few people die in airplane crashes_
           | 
           | Many of them do, but that certainly doesn't mean all of them
           | do.
           | 
           | It's really hard to see how using decades old engine designs
           | with leaded gas is necessary to prevent crashes, or how
           | updating a proven airframe to newer engine designs that have
           | a lot of operating time in cars needs to be an extremely
           | onerous process to avoid crashes.
        
             | ceejayoz wrote:
             | Cars and planes have significantly different impacts on the
             | engine.
             | 
             | https://www.flyingmag.com/aircraft-do-car-engines-make-
             | good-...
             | 
             | > Car engines are designed to provide quick bursts of
             | relatively high power output for acceleration, and then
             | only modest power output for steady-state cruising. It's
             | unusual for an auto engine to operate anywhere near its
             | redline rpm or max-rated power output. Airplanes, on the
             | other hand, usually take off and climb near 100 percent
             | power output, followed by steady-state cruise often at 75
             | percent power. Aircraft engines are designed to sustain
             | this punishment reliably over a typical 2,000-hour service
             | life. Try running your car's engine at or near redline rpm
             | all the time and see what happens. Of course, we don't know
             | what will happen, and in an airplane we can't pull over to
             | the side of the road when it does.
        
               | dsfyu404ed wrote:
               | So de-rate and conservatively tune the engine to a peak
               | HP that can be sustained indefinitely. This is SOP when
               | putting automotive engines in industrial uses. Just
               | because you don't know of it doesn't mean it's not dirt
               | common and well practiced in industry.
               | 
               | 2000hr equates to, generously, like really generously, a
               | 150-200k service life. It really drives me up the wall to
               | see you acting like this is a big number when in any
               | other context you'd be happy to pop in and tell us about
               | how your you're so smart because you bought a Toyota and
               | it's _guaranteed_ to make it that far.
        
               | ceejayoz wrote:
               | > So de-rate and conservatively tune the engine to a peak
               | HP that can be sustained indefinitely. This is SOP when
               | putting automotive engines in industrial uses.
               | 
               | Those industrial uses don't crash into a random person's
               | house if they fail, and "conservatively tune" means
               | you've changed the engine's behavior. The FAA likes you
               | to demonstrate safety when you change safety-critical
               | things.
               | 
               | > 2000hr equates to, generously, a 150-200k service life.
               | 
               | At a much higher cruising RPM, which is the entire point
               | of the article.
        
               | xyzzyz wrote:
               | > Those industrial uses don't crash into a random
               | person's house if they fail,
               | 
               | It is _highly_ unlikely to crash into a random person's
               | home due to engine failure. Planes don't drop out of the
               | sky like stones when their engines fail. You can still
               | fly them and pick a spot to attempt emergency landing or
               | controlled crash.
               | 
               | For comparison, cars crash into people's homes all the
               | time, but i don't believe it is ever a result of car
               | engine failure. No reason to expect plane engine failures
               | to cause these.
        
               | p_l wrote:
               | Considerable amount of plane crashes, including deadly
               | ones, involve engine failure - often due to things that
               | aren't present at all in automotive (or marine or
               | industrial) use.
        
               | stenius wrote:
               | I personally don't know what will happen, but I figure
               | that type of test is easy to do in a lab environment.
        
               | ceejayoz wrote:
               | Easy, but quite expensive to have a meaningful sample
               | size.
        
               | bischofs wrote:
               | the 24 hours of Le Mans, and tens of thousands of
               | runabout marine applications with automotive engines
               | disagree with you. The real question is would you prefer
               | a 1950s Lycoming engine with a mechanical fueling system,
               | or a modern car engine that has been proven in millions
               | of vehicles?
        
               | ceejayoz wrote:
               | https://en.wikipedia.org/wiki/24_Hours_of_Le_Mans says
               | "Racing teams must balance the demands of speed with the
               | cars' ability to run for 24 hours without mechanical
               | failure", which implies a slightly shorter lifespan than
               | you'd want in a plane.
        
               | aredox wrote:
               | As if running an engine for 24 hours was good enough for
               | a plane!
               | 
               | And le Mans is not an oval track: engines don't run at
               | 100% all the time.
               | 
               | And how many le Mans cars break down during the race?
        
               | voldacar wrote:
               | Hence why they used a marine engine.
        
               | aeternum wrote:
               | This is often achieve by simply derating the engine. You
               | redefine redline to be 75% of what the engine was
               | designed to produce. Then your takeoff becomes 75% power
               | and cruise is more like 56%.
        
               | cduzz wrote:
               | The story suggests they used a marine engine, which in
               | turn is an automotive engine modified to run under marine
               | conditions, which among other things includes "run at
               | full load for hours" or "run at partial load for hours".
               | 
               | Typically, of course, you're not seeing a lot of
               | elevation changes in a marine application, but with
               | modern fuel injection that's probably not such a big
               | deal.
        
             | aeternum wrote:
             | The problem is that regulations are often a knee-jerk
             | reaction without consideration to the second order effects.
             | 
             | When a crash happens, add a rule to prevent it from
             | happening again.
             | 
             | Eventually however you have so many onerous rules that it
             | becomes incredibly expensive to design a new aircraft
             | engine and thus are suck with decades old tech that lacks
             | modern innovation and safety features.
             | 
             | It's very rare to do a pass over regulations to try to
             | simplify them. From a regulatory POV, there is little glory
             | in that and lots of risk.
        
               | xyzzyz wrote:
               | Exactly. This is similar to medical context, where it is
               | found that decreasing regulations typically _improves_
               | safety, both because it is easier to innovate and bring
               | better products to market, but also because it increases
               | liability of manufacturers: in a highly regulated market,
               | they can say "sure, our device have caused you harm, but
               | it operated exactly as FDA (or FAA) required, so take it
               | up with them".
               | 
               | See https://marginalrevolution.com/marginalrevolution/202
               | 2/11/fd... for example.
               | 
               | FAA overall has done a lot of good for the safety of the
               | flyers (and I respect it much more than other regulatory
               | agencies tasked with protecting us). The problem is that
               | very often there is a trade off between safety and other
               | things, and regulatory framework prohibits the people it
               | is meant to serve from deciding on their own where
               | exactly they want to be in terms of this trade off. For
               | example, if motorcycles were invented today, they would
               | almost certainly be banned as way too unsafe to operate.
               | That would suck, because I love riding motorcycles.
        
               | ryandrake wrote:
               | Almost all of the innovation that's going on in light,
               | piston airplanes today is happening in the experimental
               | category. I've got newer, better, and safer avionics,
               | sensors, lighting, and engine systems in the E/A-B
               | category airplane I built in my garage than I would on a
               | 1970's Cessna. The richness of inputs I have in the
               | cabin, including a big moving map GPS, ADS-B traffic,
               | satellite weather, carbon monoxide detection, a vast
               | array of engine monitoring signals, AOA, and so on
               | provide so much more in terms of safety and situational
               | awareness. Pilots in the USA are truly lucky that we have
               | this option.
        
               | gocartStatue wrote:
               | Ha! Classic Theory of Constraints: most constraints come
               | from rules that used to accomodate for some limitations.
               | Most of those limitations are long gone, but we've come
               | to not question the rules; we mistake them with reality.
        
         | [deleted]
        
       | xnx wrote:
       | I can see how the cost and regulation of museum-piece general
       | aviation planes makes battery powered personal VTOL craft
       | (despite their other shortcomings) attractive.
        
       | mcculley wrote:
       | > "Even the largest marine engine manufacturers use mass-produced
       | automotive engines that they modify for the boat mission, an
       | engineering process I was more than familiar with."
       | 
       | This is not true at all, unless one is only talking about small
       | inboard boats.
        
         | bluGill wrote:
         | The larger boards will use mass produced construction and
         | agriculture engines (I work for John Deere, so while I can't
         | speak for the company I can tell marine engines are important
         | enough of a market that we consider their needs when designing
         | a new engine).
         | 
         | The largest ships get custom built engines.
        
           | mcculley wrote:
           | I work in the tugboat industry. A quite standard engine there
           | is the EMD 645. That was never a "mass-produced automotive
           | engine" and it is not custom.
           | 
           | Our smallest truckable tug uses John Deere engines.
           | Everything else uses engines that would never fit in any
           | automotive application.
        
             | dsfyu404ed wrote:
             | Most marine engines in that size range are used in either
             | rail, power generating or other stationary applications.
             | The manufacturers aren't idiots. They're gonna get as many
             | sales out of a design as they can.
             | 
             | Regardless, the point is they're not bespoke for your
             | industry.
        
               | mcculley wrote:
               | I am well aware of the other uses of these engines. I
               | argued only with the assertion made about "automotive
               | engines".
        
         | BWStearns wrote:
         | 90% sure he means "largest manufacturers of marine engines"
         | rather than "manufacturers of the largest marine engines". If
         | I'm right then the largest mfg probably produces smaller
         | engines since there's so many more small boats.
        
           | dave78 wrote:
           | Yeah, seems like all you see anymore for I/O engines is
           | Mercruiser and Volvo, which do indeed use automotive engines.
           | I'm not sure if there are even any other manufacturers left.
           | 
           | I'm less familiar with outboard engines, and I don't know
           | what is more common (I/O or outboards) for recreational
           | boating. In the Great Lakes, I/Os appear to dominate, but
           | I've noticed that videos of boating in Florida and the east
           | coast show a lot of outboards even on the bigger boats.
        
         | bri3d wrote:
         | I think they're referring to gasoline "small" boats, like
         | Mercury Marine type stuff, rather than full-sized ships, which
         | generally use industrial / "stationary" diesel engines. I think
         | the point still stands though, as these larger stationary
         | diesels are usually shared with locomotives, gensets, and the
         | like.
        
           | mcculley wrote:
           | Yes, these engines have other uses. But there is an enormous
           | market of yachts, tugs, etc. smaller than what is considered
           | to be a "ship" and bigger than any automotive engine could
           | power. I argued only with the assertion about "automotive
           | engines". It was true when I was a kid that most engines I
           | was around on commercial boats were special versions of
           | automotive engines. It has not been true in my experience for
           | a couple decades.
        
             | nine_k wrote:
             | "Even the largest marine engine manufacturers use mass-
             | produced automotive engines" means that they use such
             | engines for _some_ purposes, say for the smaller
             | watercraft. It does not mean that they exclusively use
             | automotive designs.
             | 
             | So likely both you and the article author are correct.
        
             | jabl wrote:
             | Depending on the kind of yacht, might also be considerably
             | smaller than an automotive engine. I'm somewhat
             | superficially familiar with sailboat engines, and the
             | market leaders in that segment are Yanmar and Volvo Penta.
             | 
             | Yanmar, AFAIU, is a big maker of various industrial and
             | agricultural engines, so I guess the Yanmar marine engines
             | are variants of those.
             | 
             | For Volvo Penta, I'm quite sure the bigger ones are
             | marinized variants of Volvo car and truck engines, but for
             | the smaller ones, they might sell them also as gensets or
             | such, not sure.
             | 
             | Beyond Yanmar and Volvo Penta, there's a plethora of engine
             | makers (Beta, Nanni, Westerbeke, etc. etc.), which make
             | marinized versions of Kubota engines, which are AFAIU
             | mostly used for agricultural and industrial equipment (e.g.
             | those ubiquitous small Kubota tractors). These are
             | generally well regarded, and sell for considerably less
             | than Yanmar and Volvo Penta.
        
               | mcculley wrote:
               | We love the Kubotas for generators and other small
               | workloads. Nothing else we have would fit in an
               | automobile. The smallest yacht I have worked on had
               | engines with ancestry in locomotives.
               | 
               | As another commenter suggested, I read the assertion
               | about "the largest marine engine manufacturers use mass-
               | produced automotive engines" as "largest engine" not as
               | "largest manufacturer". Maybe the author intended the
               | latter.
        
       | blhack wrote:
       | There is a whole subculture of pilots seemingly trying to run
       | around some of these regulations using "experimental" aircraft
       | like the carbon cub:
       | https://www.youtube.com/@TrentonPalmer/videos
       | 
       | (I'm not saying Trent Palmer is trying to run around any
       | regulations, just that his videos are cool, and seem like a good
       | entry point into experimental bushplanes)
       | 
       | I'd also encourage anyone here to check out Mike Patey:
       | https://www.youtube.com/@MikePatey/videos
       | 
       | His current videos are about a really interesting and unique pool
       | he is building at his house, but most of his stuff is about even
       | cooler and even more unique airplanes he builds. He's an
       | _incredible_ engineer /hacker.
        
         | cpp_frog wrote:
         | Mike is perhaps one the most impressive plane hackers I've
         | seen. His creativity and transparency (he shows all the
         | process!) are much appreciated. He inspired me to try and make
         | some carbon fiber models for RC planes. By the second half of
         | this year I plan to have built an RC delta wing, and use my
         | programming knowledge to automate its flight path.
         | 
         | EDIT: To add to it, and even more remarkable: Mike has
         | apparently got no formal education in engineering. His twin
         | brother also wrote a book about the blessings and curses of
         | ADHD, which both have.
        
         | TylerE wrote:
         | Not so much a "runaround" as "established procedure by the
         | FAA". The big restriction is that you really can't use them for
         | commercial purposes.
        
       | google234123 wrote:
       | It's annoying how antiquated the engines used on these single
       | engine planes. Continental is selling engines designed in the 60s
       | that are just so inefficient.
        
         | bombcar wrote:
         | The market for small planes is basically entirely gone; the
         | entire amount is so small that they can't really get through
         | the cost of certification for the amount they sell.
         | 
         | Even the relatively modern SR20 uses a Lycoming engine:
         | https://cirrusaircraft.com/aircraft/sr20/ -
         | https://en.wikipedia.org/wiki/Lycoming_IO-390
        
           | yetanotherloser wrote:
           | It's not "gone" as if evaporated; it has been murdered by the
           | certification requirements.
           | 
           | The odds of a random stranger dying from a light aircraft
           | falling on them are trivial, several orders of magnitude less
           | than the odds of their being hit by a car or being killed by
           | inactivity; the pilot is free to refuse to take off, so risk
           | appraisal really is on them; it's time to dump safety
           | bureaucrats into your nearest woodchipper and CHANGE. THE.
           | LAW. if you want ANY interesting activities or skills to
           | survive.
        
             | aredox wrote:
             | It's not the certification: flying is an expensive hobby,
             | with a huge time commitment. People have moved on to other
             | hobbies and fads.
             | 
             | We see the same with dinghy sailing. It used to be a big
             | scene with hundreds of ordinary people showing up for
             | regattas. It was killed by windsurfing (at least here in
             | Europe) and just people moving on to other things ,not
             | regulation of any sort.
        
               | rlpb wrote:
               | That's a circular argument. Recreational flying is an
               | expensive hobby _because_ of the certification barrier.
               | Most of the price is in fuel inefficiencies and expensive
               | maintenance of ancient engine designs. Airframe parts are
               | expensive because they 're obscure and certification
               | requirements prevent modern equivalents from being used
               | instead. And so forth.
        
               | yetanotherloser wrote:
               | I dunno. I'm pretty sure the lack of barriers to entry,
               | inconvenient and costly certification, and safety
               | nannying helped windsurfing get ahead there too. That and
               | dinghy clubs inevitably devolve into race clubs that
               | revolve inexorably around the race safety boat, and if
               | you just want to noodle about or explore you're out of
               | luck unless you are geographically lucky or you can
               | afford a yacht. (which is great. But it's an uncommon
               | privilege)
        
               | outworlder wrote:
               | > It's not the certification: flying is an expensive
               | hobby, with a huge time commitment.
               | 
               | People have plenty of expensive and time consuming
               | hobbies. All hobbies are at least time-consuming, that's
               | what a hobby is.
               | 
               | All certifications add to the expenses. It's the reason
               | why one can't buy a headset off amazon and have to pay 1k
               | for a used headset. Sure, safety requires certifications
               | but I guess we went overboard. It's also the reason why
               | GA aircraft are expensive to this day, even those build
               | 40 years ago. It's pretty expensive to keep maintaining
               | old tech at low volumes. I'm rooting for Diamond and
               | their car-derived engines (as well as the Experimental
               | aircraft scene).
               | 
               | Note that boats are also notoriously expensive.
               | 
               | There's a very good parallel to your example: gliders.
               | You want to fly cheap (just to fly, not to go places)? Go
               | soaring. Problem is, it's even more location-dependent.
        
             | nimish wrote:
             | FAA is incentivized to do nothing and sit on its hands.
             | It's a mess. A good quarter of the country is medically
             | barred from ever flying, even solo. The chances of this
             | changing are 0 and it'll get worse.
             | 
             | Insert the "who could have done this" meme with the FAA
             | shooting interest in flying and # of pilots.
        
               | gburdell3 wrote:
               | The medical system is really messed up. I would love to
               | eventually get my PPL, but I also highly suspect that I
               | have undiagnosed ADHD, and I don't want to essentially
               | sign away my right to ever get treatment. Fortunately
               | Microsoft Flight Simulator and VATSIM scratch the itch to
               | fly for now, but it still sucks that I'll probably never
               | get to actually do it in real life.
        
               | outworlder wrote:
               | Disclaimer: this is not legal advice, it's just to give
               | you some ideas. AOPA and EAA have resources that can
               | professional advise you.
               | 
               | Note that 'undiagnosed ADHD' holds as much weight as me
               | saying you have bad energies. There are many conditions
               | that masquerade as ADHD to a layperson, including some
               | purely psychological ones (they are no less real, but are
               | very different from a neurodivergent brain and require
               | very different treatment).
               | 
               | If you are otherwise a high functioning adult (can
               | function in society, operate vehicles safely, etc), get
               | your third class medical, which should be no problem. You
               | have to disclose _diagnosed_ conditions. Do a discovery
               | flight and ask for an opinion from the flight instructor.
               | If he thinks you are fit, go start your training and
               | enjoy.
               | 
               | If, one day, you do get diagnosed (with ADHD or some
               | other disqualifying condition) _AND_ require medication,
               | then it 's a problem. If you don't need medication
               | (because most if not all ADHD medications are
               | prohibited), don't try to renew your third class medical
               | (because, if you get denied, it's a big problem) and get
               | advice about _BasicMed_. It has far less requirements; my
               | understanding is, unless there 's something strictly
               | prohibited, if a doctor signs you up you are good to go.
               | 
               | You won't be able to fly commercial or faster than
               | 250knots but I suspect you don't care.
               | 
               | Failing all the above, there's light sports aircraft and
               | gliders(no medical requirements, you just need judge
               | yourself to be capable and unlikely to be incapacitated)
               | - although I am not sure you can operate them while
               | taking meds; some professional advice required here.
               | 
               | Disclaimer 2: Obviously the above assumes that whatever
               | you have does not impair you. This is just to get around
               | FAA's antiquated view on mental health while complying
               | with the law. The most important thing is to be safe. If
               | you really can't due to health issues, then don't, even
               | if a doctor says you are fine.
               | 
               | Otherwise, don't give up!
        
               | exhilaration wrote:
               | _A good quarter of the country is medically barred from
               | ever flying_
               | 
               | Can you explain this further?
        
               | selectodude wrote:
               | If you've basically ever taken an SSRI, or been to a
               | shrink, you auto-fail your medical.
        
               | nimish wrote:
               | Just about everyone who has ever undergone psychiatric
               | care cannot ever get a medical. There is technically a
               | process but it is extremely difficult and expensive.
               | 
               | Some conditions are uniformly disqualifying, for good
               | reasons. But it results in a perverse situation where a
               | regular person can choose to either get mental health
               | care or fly, but not both.
        
               | heelix wrote:
               | Pilots don't suffer from depression, smoke pot, take many
               | types of medication as a child, or have many other issues
               | because if you did - the FAA might pull your medical and
               | you can't fly after that. It can cost tens of thousands
               | to try to get the FAA to let you fly again if a medical
               | gets botched. And that is still an if...
        
           | trilbyglens wrote:
           | Probably because it's so expensive! Cheaper and more modern
           | engines and aircraft could totally make for a new wave of
           | aviators.
        
             | polishdude20 wrote:
             | Yeah, I would totally get a PPL if it wasn't at minimum
             | $15,000.
        
             | Analemma_ wrote:
             | Right, but that's the problem: with no market, things can't
             | get cheaper because there's no capital to innovate with.
             | That's why General Aviation is in a death spiral
             | (ironically, since "death spiral" is a GA term): fewer
             | people buying planes, companies exit the market and
             | remaining companies have to charge more per-plane to cover
             | fixed costs, GA becomes more expensive, fewer people buy
             | planes, etc.
        
               | Petersipoi wrote:
               | Why is nobody willing to take a risk to revive this
               | market? If the only thing preventing a revival is cheap
               | planes, couldn't someone get some investor to pay for all
               | the certifications of their modern, fancy, efficient,
               | cost effective plane, and then sell a million of them?
               | 
               | That is essentially how any new industry works. EV's were
               | too bad/impractical/expensive until Tesla decided to take
               | the risk and put down the capital to make them
               | mainstream. Why can't/doesn't someone do the same for GA?
        
           | flangola7 wrote:
           | Why is the market smaller than in the 60s? There's more
           | people with money than ever.
        
             | ben7799 wrote:
             | There's a secondary issue that in a lot of places the sky
             | is a lot more crowded and the airports are very crowded.
             | 
             | I wanted to be a pilot. I took lessons in the 1990s at a
             | small field, relatively uncrowded, relatively low cost. I
             | stopped due to weather/money.
             | 
             | When I tried again after I finished college where I lived
             | things were more expensive and the airspace was so crowded
             | you would run up costs waiting in line to take off, and the
             | whole thing was much more stressful.
             | 
             | It has to be fun, in a busy enough environment it becomes
             | stressful enough fewer people want to fly.
        
             | abujazar wrote:
             | Not really - the upper middle class is smaller even though
             | there's a lot more billionaires. And billionaires in
             | general aren't hobby pilots.
        
             | metadat wrote:
             | The cost compared to the 1960s seems to be much higher.
             | Even for "people with money".
        
               | 0xffff2 wrote:
               | It really isn't though. Yes, the GA fleet is extremely
               | old, but the inflation-adjusted cost of a PPL is pretty
               | much exactly what it was in the 1960s.
        
               | kevin_thibedeau wrote:
               | Inflation adjusted wages aren't.
        
               | cdot2 wrote:
               | Median per capita inflation adjusted income has steadily
               | risen since WW2 https://united-
               | states.reaproject.org/analysis/comparative-tr...
        
           | kevmo314 wrote:
           | Part of the problem is that this V8 engine is a 2x
           | improvement. It's definitely an improvement, but a sub 10x
           | improvement isn't enough to bring on a revolution. The
           | article alludes to investors' lack of appetite for the risk,
           | I suspect a larger improvement would convince them.
        
             | bombcar wrote:
             | Yeah, all the development that IS going on is happening in
             | the very light jet market:
             | https://en.wikipedia.org/wiki/Very_light_jet
             | 
             | But that's a $2m aircraft vs a half-million one.
        
               | jabl wrote:
               | VLJ's are cute, yes. I'm slightly hopeful about small
               | scale turboprops too. Yes, generally turbines don't scale
               | down very well (well, applies to VLJ's to an extent as
               | well), but if they only could make the capital costs of a
               | turbine decent enough, the reliability, power/weight, and
               | cheap and available Jet A-1 would still make such a thing
               | attractive, I think.
               | 
               | There's a couple of companies working in this space:
               | 
               | Turbaero: https://turb.aero/ Turbotech:
               | https://www.turbotech-aero.com/
        
               | ben7799 wrote:
               | If he actually got this V8 certified and Cessna switched
               | to then it might be dirt cheap to run but the 172 with it
               | preinstalled might be $1M because they will sell so few
               | and have so much engineering & certification cost to
               | amortize.
               | 
               | That's how silly it all is, and why it will stay stuck in
               | Experimental.
        
           | gnabgib wrote:
           | SR20 you mean (as you linked, but not written). SR22 uses a
           | Continental https://cirrusaircraft.com/aircraft/sr22/
        
             | blantonl wrote:
             | ...which incidentally has a very nasty problem brewing with
             | Continental engines, grounding of all of the manufacturer's
             | fleet running Continental engines that were made in the
             | past few years.
             | 
             | It's actually an aviation crises in the making with 1000's
             | of SR-22s.
        
               | outworlder wrote:
               | Any more details on that?
        
               | blantonl wrote:
               | https://twitter.com/JonHuntTV/status/1623390223190134784?
               | ref...
        
             | bombcar wrote:
             | Yep, went with the cheaper one.
        
         | jeffbee wrote:
         | These engines have parts that are interchangeable with pre-WW2
         | engines. It's pretty generous to say they were designed in the
         | 1960s.
        
         | _ph_ wrote:
         | I think that is one of the reasons why the upcoming electric
         | small planes are such a huge thing - getting rid of not only
         | combustion engines, but very old and inefficient combustion
         | engines. Could be a real game changer.
        
           | outworlder wrote:
           | They are probably not going to take off (pun intended) any
           | time soon. Just fuel reserve requirements alone are about the
           | full range they have.
           | 
           | I suspect hybrids will be developed first. Basically an APU
           | sending power to the main motor + a relatively small battery.
           | The 'APU' can be relatively compact and deliver a lot of
           | power, with less engineering requirements (can place it
           | anywhere, doesn't need to interface with a prop). If it fails
           | you have some emergency battery power. Electric motors are
           | incredibly strong and have very few moving parts, so
           | reliability is higher. They are also light.
           | 
           | Net net, there's some complexity and the combined equipment
           | may be heavier (may! existing powerplants are some heavy
           | beasts) but there's probably advantages.
           | 
           | Certification would be horrendous, I imagine.
        
           | jacquesm wrote:
           | They'll end up with a fraction of the range/payload of the
           | old planes.
        
             | Toutouxc wrote:
             | I'd literally fly a bicycle with wings for fifteen minutes
             | at a time if that made [fixed-wing] aviation more
             | affordable. I live in one of the better-off eastern-bloc
             | countries and I make significantly more than most people I
             | know, but getting a PPL would almost certainly ruin me
             | financially at this moment.
             | 
             | I know that paragliding and hang gliding exist, but those
             | are a bit out of my comfort (and safety) zone.
        
               | outworlder wrote:
               | There are also actual gliders (aka soaring). These are
               | planes in all but the engine, and are pretty safe.
        
               | jacquesm wrote:
               | There are clubs that own small aircraft that you can fly,
               | I've done some time in these:
               | 
               | https://en.wikipedia.org/wiki/Ikarus_C42
               | 
               | Technically it is a microlight but top speed and handling
               | are much closer to a regular GA craft. I absolutely loved
               | it and if my eyesight was better I'd definitely go for a
               | license.
        
             | ElevenLathe wrote:
             | Maybe that's fine if the point is just to go up on a
             | Saturday for fun and land at the same field you took off
             | from.
        
         | UniverseHacker wrote:
         | Continental sells a range of general aviation engines based on
         | modern Mercedes Benz diesel car engines, initially developed by
         | Thielert as the Centurion. They run on regular Jet-A fuel, and
         | are extremely efficient.
         | 
         | https://www.continental.aero/diesel/engines/cd155.aspx
         | 
         | https://en.wikipedia.org/wiki/Thielert_Centurion
         | 
         | I think these, combined with biofuel based Jet-A are a good
         | solution to this problem, as electric tech is a long ways from
         | having the range needed.
         | 
         | Maybe someone who knows more could chime in why these haven't
         | already completely replaced the ancient air cooled leaded gas
         | motors? My guess is that they're very expensive...
        
           | jabl wrote:
           | I think this is the $100000 conversion alluded to in the
           | article. Not sure what makes it cost that much. Maybe the
           | same thing that seems to have caused GA to stagnate, very
           | small volumes combined with high certification costs.
           | 
           | (There's also a company called Austro engines that makes aero
           | diesel engines, AFAIU even based on the same MB car engines
           | Continental/Thielert uses. I think Austro is a subsidiary or
           | spinoff of Diamond, so that's where you see these engines
           | used.)
        
             | UniverseHacker wrote:
             | I would guess that whatever makes it cost so much would
             | equally apply to this solution once it is certified and not
             | experimental. The gas V8 will be much less fuel efficient
             | than a small turbo diesel, especially at altitude where the
             | turbo offers huge advantages.
             | 
             | Those Mercedes engines are found in small cars and delivery
             | vans around the world, and are widely available and pretty
             | cheap. For example, the Centurion 3.0 uses a Mercedes-Benz
             | OM642 which is found in Freightliner/Sprinter vans, Jeeps,
             | and tons of other very common cars. You can buy these
             | engines straight from Mercedes for like $8k.
             | 
             | In this case, the author mentions using an aluminum marine
             | GMC V8, but not which one exactly. This is most likely
             | based on the LS V8s, which are fairly expensive motors, and
             | a pretty ancient design (e.g. pushrods).
        
           | bluGill wrote:
           | You need to get the whole airframe certified to change the
           | engine. If the airplane hasn't been in production for 40
           | years+ who will pay for that? Does the engineering data
           | needed to start that process even exist anymore?
        
             | UniverseHacker wrote:
             | Interestingly, I found that the airplane in question here,
             | the Cessna 172 was actually sold with the Thielert /
             | Continental diesel, but ended up cancelling it because they
             | were so much more expensive than the gasoline models that
             | nobody bought them:
             | 
             | https://en.wikipedia.org/wiki/Cessna_172#Special_versions
        
         | jabl wrote:
         | I think if you want to see 'modern' gasoline powered piston
         | aviation engines, you have to look elsewhere than Lycoming or
         | Continental. ULpower and Rotax make fuel injected aero engines
         | with FADEC. I think Rotax has even certified some of their
         | models.
        
         | nickff wrote:
         | This is a product of the regulatory process. I am sure Cessna
         | would love to sell new stuff, but it's just not worth it for
         | them or their clients.
        
           | mopsi wrote:
           | The whole small piston-engine plane industry collapsed in
           | 1980s because of excessive liability: https://en.wikipedia.or
           | g/wiki/General_Aviation_Revitalizatio...
           | 
           | If I recall correctly, Cessna was found infinitely liable for
           | every plane manufactured, meaning that each new plane off the
           | assembly line increased their potential overall liability
           | without liability over decades-old planes expiring and
           | decreasing it.
        
             | mfkp wrote:
             | That's true of US-based manufacturers, but foreign
             | manufacturers thrived during that time (French, etc).
        
             | light_hue_1 wrote:
             | > If I recall correctly, Cessna was found infinitely liable
             | for every plane manufactured, meaning that each new plane
             | off the assembly line increased their potential overall
             | liability without liability over decades-old planes
             | expiring and decreasing it.
             | 
             | This was a problem in the 90s. And it was fixed! Back when
             | the government still fixed things. https://en.wikipedia.org
             | /wiki/General_Aviation_Revitalizatio...
        
       | ck2 wrote:
       | Leaded fuel, leaded fuel fumes and spray.
       | 
       | Adapt the engines or ground them. There's no acceptable middle
       | ground.
       | 
       | It's like secondhand smoke to the rest of the population.
       | 
       | No your "immune system" does not handle lead, it's forever and
       | why it was banned in cars for 25 years
       | 
       | https://www.thedrive.com/news/42218/if-leaded-fuel-is-so-bad...
       | 
       | https://www.nbcnews.com/business/business-news/leaded-gas-wa...
        
         | jabl wrote:
         | The big news in the past decade or so in this space is the
         | G100UL fuel which now has a STC for almost(?) all prop planes.
         | 
         | Not sure what the next step, regulation-wise, is. An official
         | 100UL spec followed by the sunsetting of 100LL?
        
           | sand500 wrote:
           | The later is already happening as cities ban the sale of
           | leaded fuel in their airport.
        
       | sfeng wrote:
       | Tiny correction, it's not really true that an experimental can't
       | land at a class bravo airport.
        
         | blantonl wrote:
         | There's really very little reason for a GA single piston
         | aircraft to land at a Class B airport anyway.
        
           | sokoloff wrote:
           | I fairly regularly (several times per year) land our A36 at a
           | class B airport: mostly BWI, PIT, and DTW. They are often the
           | most convenient airport to access something downtown (such as
           | a sporting event via public transport or a shorter Uber
           | ride). Even our older 182 could blend in reasonably well
           | speed-wise [though it often meant flying at full cruise power
           | through much of the approach to keep the speed up to 135-140
           | KTAS].
        
             | base698 wrote:
             | Family has extra members so keep thinking about an A36,
             | currently fly a Mooney. Seems to be better than paying
             | Baron upkeep.
             | 
             | Any advice welcome.
        
           | selectodude wrote:
           | Landing at a class B airport is flipping cool, for one.
        
           | base698 wrote:
           | I did it once at KLAS. Way closer to the hotel.
        
       | jaclaz wrote:
       | [2020]
       | 
       | Seemingly the author is still working at it:
       | 
       | https://corsairpower.com/
       | 
       | Last update (2022):
       | 
       | https://airfactsjournal.com/2022/10/the-20-hour-cessna-172-e...
        
         | falcolas wrote:
         | Very cool. And also a little depressing that the state of the
         | art is still back where it was in 2000 when I last looked at
         | this.
         | 
         | May they drive a revolution.
        
       | titanomachy wrote:
       | He complains that the plane which cost him $45 an hour to rent 30
       | years ago costs him $125 to rent now. Isn't that basically just
       | inflation? $45 in 1992 is $104 today.
        
         | cjbgkagh wrote:
         | I think his point was the same planes are much older today and
         | so he expected them to be cheaper after inflation. They were
         | also old when he first flew them so the capital expenditure was
         | likely already a small component of the per hour price.
        
         | sowbug wrote:
         | The complaint is that it's the exact same plane, but 30 years
         | older. Inflation sucks, but with most durable goods you get the
         | benefit of improved technology. Imagine paying $1,000 for a PC
         | today -- not bad, except what if it were a 60MHz Pentium with a
         | 40MB hard drive?
        
           | cholmon wrote:
           | I did a discovery flight with my son last summer in a C172.
           | We had a blast, but I was pretty surprised how old the plane
           | felt. My recurring thought is that Cessnas are like the
           | TI-85s of airplanes; ubiquitous workhorses frozen in time.
           | 
           | Is it just Cessnas though? Is this the way all small planes
           | are?
        
             | greycol wrote:
             | There is a pretty big "experimental" scene with small and
             | ultra light airplanes. Experimental here basically meaning
             | you can't use it for comercial. So mostly because of the
             | costs of certification and liabilities involved and how the
             | segment of the market is lifestyle/hobyists you end up with
             | a lot of nice modern small planes that only the
             | owner/syndicate flies and only for personal flights.
             | 
             | There's plenty of neat little planes out there, my favorite
             | was basically the go cart equivalent of a jet that I saw at
             | our club airport. Something like this
             | https://www.esato.com/board/viewtopic.php?topic=92070
        
             | TylerE wrote:
             | The GA market pretty much died in the late 80s. Outside of
             | very high end flight schools (think University programs
             | targeting potential airline pilots), or the doctors and
             | dentists flying Cirruses... yea, they pretty much ARE all
             | that old.
             | 
             | Even the 172 went totally out of production for a decade.
             | Cessna almost went under.
        
             | tcas wrote:
             | For certified piston aircraft, generally yes. The engines
             | are pretty much made by a few manufacturers based on
             | ancient designs, and while you may get some "newer"
             | benefits in some models, such as fuel injection (instead of
             | carborators), or digital engine control (FADEC), they're
             | pretty much ancient technology compared to modern engines.
             | Most still have manual mixture control for example and very
             | limited monitoring.
             | 
             | The only example in that class (sub $750k) I can think off
             | the top of my head with a better engine is DA40 NG, which
             | uses a modified Mercedes diesel engine.
        
             | docandrew wrote:
             | It's not just Cessnas. Besides the normal wear and tear of
             | a plane that's potentially 40 years old, most of the
             | single-engine planes at a flight school are going to see
             | extra abuse from all the student pilots.
        
             | sowbug wrote:
             | Someone else can tell the story better than I can, but
             | supposedly the cost of certification of new light-aircraft
             | models got out of control in the 1980s, which stifled
             | product evolution, so it became more cost-effective to keep
             | a really old plane airworthy than to scrap it and buy the
             | latest and greatest. I do know there's been a lot of
             | innovation in the LSA (light-sport aircraft) segment, so it
             | does seem odd that four-seater and two-seater evolution
             | would diverge so much.
             | 
             | I have a feeling I'm perpetrating a certain angle to the
             | truth (maybe that product-liability lawyers suck). I'm just
             | passing on what I heard -- please don't shoot the
             | messenger. A more comprehensive retelling would be
             | appreciated.
        
           | kevin_thibedeau wrote:
           | You're not paying for a depreciated product. You're paying
           | for the maintenance and operating fees which don't depreciate
           | in value.
        
             | docandrew wrote:
             | On an airplane you're really paying for the engine.
             | Typically after 2000 hours (depending on the model) they
             | are supposed to be overhauled, which will be a cool $20-30k
             | or so for something like the 172 in the OP. If you're
             | airplane shopping you'll see a very tight correlation
             | between the asking price and the "SMOH" time or hours since
             | major overhaul.
        
               | nine_k wrote:
               | For $20-30k, you likely can buy and install a new engine,
               | or two, were it car engines. (That's the route taken in
               | the article.)
        
               | docandrew wrote:
               | It seems like kind of a slam dunk, though I wonder about
               | the reliability of a car engine left at full-throttle (or
               | close to it) for long periods of time the way airplane
               | engines are.
        
           | melling wrote:
           | I'm pretty sure everyone understands you can't compare the
           | price drops of electronics with durable goods.
           | 
           | Are cars cheaper today? How about all that construction
           | equipment the Caterpillar sells?
           | 
           | Are the price of tanks and jets getting cheaper?
        
             | Rebelgecko wrote:
             | If you buy a new car today, it'll be better than a 40 year
             | old car in pretty much every metric. Performance, fuel
             | efficiency, comfort, safety, etc.
             | 
             | I think the OP is complaining that they're paying "modern
             | vehicle" prices to rent a plane that has had minimal
             | changes since the 1960s. The vast majority of old cars
             | (other than collectable ones with low mileage) are gonna be
             | cheaper than they were new.
        
             | akiselev wrote:
             | They're all much cheaper than they were and more advanced
             | by leaps and bounds.
             | 
             | GA airplane production collapsed from a peak production of
             | 17k a year in the 1970s to a few thousand a year starting
             | in the 90s continuing to today. Cars and tractors and tanks
             | and even jets have all seen their markets grow, not
             | disappear.
        
               | Retric wrote:
               | That's sometimes true but the standards have improved so
               | much it's hard to do these comparisons.
               | 
               | A new Model T in 1925 cost had fallen to 260$, that's
               | roughly $4,348 in todays money. Sure it's missing a great
               | deal of modern features, but it's hard to get a new golf
               | cart at that price.
        
             | rocket_surgeron wrote:
             | > Are cars cheaper today?
             | 
             | Cars are AVAILABLE for pretty much the same price.
             | 
             | People WANT more expensive cars.
             | 
             | The Volkswagen Beetle was pretty much the least expensive
             | car on the market for its entire sales run in the United
             | States.
             | 
             | The inflation-adjusted price of a Beetle in 1973 was around
             | $12,000.
             | 
             | The price of a Chevrolet Spark in 2022? $13,000.
             | 
             | Nobody wants a Spark, though. They want an SUV. So Chevy
             | killed the Spark.
             | 
             | Before Chevy discontinued the Spark you could walk onto a
             | lot and drive away in one of the dozen or so Sparks they
             | had rotting away in the corner for less than the price of a
             | VW Beetle in 1973-- and the Spark was superior in every
             | measurable way.
             | 
             | 2023's cheapest car is the Nissan Versa. You can 100% find
             | dealers who will part with one for less than the cost of a
             | Beetle. It is also better than the Beetle.
        
               | grepfru_it wrote:
               | The car today that costs the same as the price of a car
               | yesterday. But your car of today provides airbags, ABS
               | brakes, much better crash protection, backup cameras,
               | power windows, automatic transmissions, the list goes on
               | and on. You are getting way more for the same dollar you
               | paid in the past for cars
        
               | PaulHoule wrote:
               | Carmakers want to sell expensive cars.
               | 
               | Back in the 1970s my dad had plenty of stories about how
               | American car dealers had all kinds of excuses why they
               | couldn't, wouldn't or shouldn't sell you a small car.
               | 
               | Now the Japanese car dealers do the same thing.
               | 
               | A few years I went to a Honda dealer looking for a new
               | Fit, found they didn't have any because "the factory
               | washed out in a flood" but they had 50 CR-Vs which are
               | made in the same factory which were somehow not affected
               | by the flood.
               | 
               | They really ought to put up or shut up: when they have a
               | $7000 sales incentive on that monster vehicle that is not
               | a sign that people want to buy a monster vehicle but it
               | is a sign they want to sell you a monster vehicle.
        
               | Aunche wrote:
               | The only reason for a manufacturer to want to produce a
               | cheap car is to sell a ton of them at a low margin. If
               | not enough people are buying them, then there's no reason
               | to continue selling them. At sub-$20,000, you're going to
               | be better off buying a used car than a new, bare bones
               | car. This wasn't the case decades ago when cars were a
               | lot less reliable and generational improvements were much
               | larger.
               | 
               | >when they have a $7000 sales incentive on that monster
               | vehicle that is not a sign that people want to buy a
               | monster vehicle
               | 
               | What cars are you talking about? It's generally the
               | "monster vehicles" that have the greatest markup (e.g.
               | Bronco Raptor)
        
               | sn_master wrote:
               | > People WANT more expensive cars.
               | 
               | Because it's very easy to get financing for a car, that's
               | why. If they had to pay it out of pocket you bet they'd
               | choose the cheaper car.
        
             | el_don_almighty wrote:
             | The core features of most capital products are basically
             | commodities. Every car now has an automatic transmission,
             | A/C, fancy radio, electric windows, etc...
             | 
             | Manufacturer's can only increase prices (and thus keep
             | ahead of inflation) by innovating the edge with new
             | features, wanted or not.
             | 
             | Is Ford or Caterpillar really best positioned to design and
             | deliver a mobile flat-panel touch screen device? Not
             | likely, but putting one in their vehicles creates
             | opportunities for higher prices and new innovations.
             | 
             | VERY LITTLE of this is available in the aircraft market
             | where every new part number requires justification,
             | testing, and approval.
             | 
             | The health-care market is very similar yet demand is so
             | high and inelastic that it still justifies huge
             | investments.
             | 
             | Aviation... not so much
        
             | mc32 wrote:
             | Especially in a heavily regulated industry --where changes
             | takes years before approval is granted.
        
               | mannerheim wrote:
               | You can get a street-legal car from China for about a
               | thousand dollars.
               | 
               | https://www.hotcars.com/these-are-the-cheapest-new-cars-
               | you-...
        
               | ceejayoz wrote:
               | Their cheapest one failed a crash test against a child's
               | _pinata_.
               | 
               | https://www.youtube.com/watch?v=EkgPqkJ5iJI
        
               | mannerheim wrote:
               | Well, yes, they're not particularly good or safe cars.
        
               | someweirdperson wrote:
               | As unsafe as cars in the 60s.
        
               | mc32 wrote:
               | No, 60s cars were rigid boxes that did not crumple
               | --which because of a lack of other safety features meant
               | you got ejected or got banged around inside this metal
               | box. These things allow you to get squished inside the
               | foil box.
        
               | ceejayoz wrote:
               | I didn't expect one to fare well in a crash test against
               | another car.
               | 
               | I also didn't expect one to receive significant damage
               | from a lightweight cardboard box.
               | 
               | There's "unsafe", and then there's _this_.
        
               | Dylan16807 wrote:
               | It messed up the bumper? Wouldn't that happen with tons
               | of cars?
               | 
               | And roof rack damage is definitely not a safety issue.
        
               | ceejayoz wrote:
               | None of that damage should have occurred from a pinata.
               | 
               | At $1,000, it's probably safe to assume these aren't the
               | only cheaply made parts of the vehicle.
        
             | 8note wrote:
             | How much is a 30 y/o beater car? Even one in good
             | condition?
        
         | ben7799 wrote:
         | He's in a cheap area or something.
         | 
         | Instruction in a 172 is more like $250/hr at the nearest
         | airport to me in Massachusetts, with the plane being at least
         | $200/hr of that. The gotcha is I think they are modern 172s,
         | which are probably more than $500k each to buy at this point.
         | 
         | I took lessons in the early 1990s and it was $125/hr in a 152
         | which was a much smaller less capable airplane. People are too
         | heavy now, the 152 sized plane is no longer used as much
         | because 2x 200lb adults will put it over it's max takeoff
         | weight if the gas is topped off or something.
         | 
         | Everything about all of it is super wacked. The leaded fuel,
         | the way people cling to old planes cause the new ones are so
         | stratospherically expensive, the ancient technology because the
         | manufacturers need so much money to get anything approved,
         | etc..
        
           | asciimike wrote:
           | Yeah, prices in CO (where Corsairpower is based) are
           | ~100-150/hr wet for a 172, plus 30-40/hr for an instructor. I
           | think I'm paying ~120/hr plus a varying "fuel surcharge" of
           | ~20/hr for a T41-D.
           | 
           | The main issue right now is that all the flight schools are
           | booked up and you can't get a DPE booked less than two months
           | out.
        
           | grepfru_it wrote:
           | >People are too heavy now, the 152 sized plane is no longer
           | used as much because 2x 200lb adults will put it over it's
           | max takeoff weight if the gas is topped off or something.
           | 
           | Why would you fly with full fuel tanks while taking lessons?
           | However, your comment is correct that 152 is horribly
           | underpowered
        
             | Pasorrijer wrote:
             | Safety purposes. If you're away from the school, a student
             | gets off course, bad weather, etc, they would much rather
             | you have extra fuel than too little.
             | 
             | It's also dependent on what's being flown. Sometimes they
             | will fly with less for weight and balance.
        
         | ghawk1ns wrote:
         | That's innovation in my book. Nothing wrong with trying to
         | reduce your costs while improving emissions, especially when
         | we're talking about 30+ year old technology.
        
       | [deleted]
        
       | kylecazar wrote:
       | There must be something so incredibly gratifying about
       | engineering a thing, and then successfully betting your life on
       | the soundness of its design.
        
       | w10-1 wrote:
       | This person lost a lot of credibility over decades of promoting
       | corsair engines which failed.
       | 
       | Many people are complaining about the ancient technology, but
       | newer ones offer very few advantages.
       | 
       | An piston GA airplane runs basically at two speeds: flat-out for
       | take-off and cruise. For both the fuel/air mixture is easily
       | optimized to optimal, and the slow engines reduce waste. Benefits
       | from EFI are decent but below 10%. Supercharging helps a lot at
       | higher altitudes, but most planes aren't pressurized or carry
       | oxygen, so even that has limited benefit.
       | 
       | The main benefit of the current engines are robustness: I know
       | people who have even flown without oil or with a blown valve.
       | Many experimental builders combine mechanical magnetos with
       | electronic ignitions, partly for fuel efficiency but mainly to
       | lower idle speed on the runway when landing.
       | 
       | The real difficulty is not technology but service. There are very
       | few engine rebuilders, and they are happy with the current
       | limited supply of engines keeping prices up.
       | 
       | And unless you built your own experimental plane, or you get an
       | experimental where the FAA permits owner inspections, the main
       | cost of flying is service on the plane.
       | 
       | Aside 1: many engines have STC's to run car avgas. All require
       | there to be NO ethanol for its impact on the fuel system. The
       | studies I've seen of those engines report bottom rebuild times
       | more like 800-1000 hours rather than 2,000 hours, and of course a
       | higher incidence of valve-related problems.
       | 
       | Aside 2: experimental planes are not a subculture. They form the
       | largest number of new planes. The $200K+ alternates only go to
       | the wealthy. And after 50 years of competing companies, only one
       | has been the overwhelming success, in both popularity and
       | numbers: Van's aircraft. They use old-style, simple designs and
       | construction, and (mostly) old-style engines, preferring the
       | Rotax for their RV-12.
        
       | [deleted]
        
       | rdl wrote:
       | One of the biggest markets for small aviation engines which run
       | on something other than 100LL is small drones -- running on JP8,
       | Jet A, or Jet A1 would make military logistics far easier and
       | safer. Even road gas would be a reasonable alternative to 100LL,
       | and both diesel/kerosene and gas are easier to find in the bush.
       | Kerosene/diesel are probably better due to risk of water in the
       | fuel at these places, but diesel engines tend to be heavier than
       | gas.
       | 
       | Deltahawk, Thielert, etc are the bigger projects I've followed.
       | Getting an actual certified engine is...hard.
        
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