Subj : Re: Maas Aero damage To : rec.sport.rowing From : sully Date : Thu Aug 13 2020 10:47 pm On Thursday, August 13, 2020 at 1:17:03 PM UTC-7, Roger Slaymaker wrote: > On Tuesday, July 28, 2020 at 12:32:36 PM UTC-4, sully wrote: > > On Tuesday, July 28, 2020 at 8:18:40 AM UTC-7, bnw...@gmail.com wrote: > > > On Tuesday, July 28, 2020 at 11:09:53 AM UTC-4, sully wrote: > > > > On Monday, July 27, 2020 at 1:54:31 PM UTC-7, bnw...@gmail.com wrote: > > > > > On Monday, July 27, 2020 at 4:42:12 PM UTC-4, sully wrote: > > > > > > On Monday, July 27, 2020 at 5:25:36 AM UTC-7, bnw...@gmail.com wrote: > > > > > > > On Friday, July 24, 2020 at 10:14:08 PM UTC-4, sully wrote: > > > > > > > > On Friday, July 24, 2020 at 5:20:04 PM UTC-7, ed llorca wrote: > > > > > > > > > That is going to be a diffecult repair. What do you intend to do? > > > > > > > > Ed, won't be too bad given that boat owner doesn't mind cosmetic changes. > > > > > > > > > > > > > > > > I put my recipe on the facebook page you asked that question on. > > > > > > > Mike, > > > > > > > My initial thought was to start with a piece of reinforcing (marine plywd?) as a fishplate spanning the voids, inside the hull, as getting a good "bite" on the interior side of the repair will be difficult... > > > > > > > You have far more experience in hull repair, so I will defer to your judgment, and look forward to the final results. Good luck! > > > > > > well, lots of practice doesn't equate to sound practice!!! :^) > > > > > > > > > > > > this idea would work on the sternward damage, but not at the bow-ward damage where there is a bulkhead/shoulder. > > > > > > > > > > > > I can't effectively reach the inside of the sternward damage from the porthole, there's really just enough room for a wrench in there for bolt thru riggers, I'd do a terrible job sanding the inside surfaces. > > > > > > > > > > > > What I've done with other boats is to cut another hole for access in a part of the boat that doesn't need structure. This would work here, but boat owner doesn't care about cosmetics. Thus I'll just build carbon fiber structure on top of that gunwhale. The bow-ward damage is still supported by the bulkhead. The stern-ward area design just has heavy duty glass that the rigger bolts to, I've just copied and increased, and used carbon. > > > > > > > > > > > > I used two layers of carbon twill, two layers of unidirectional sandwiched inbetween with regular fiberglass cloth covering top. > > > > > > > > > > > > The result will be that the starboard side gunwhale deck will be raised up above former level with a bit more weight and strength. Since boat is rigged left over right, I figured no harm, no foul, and it saved a lot of time in repair, they will get this boat back right away for their busy learn to row classes. > > > > > > > > > > > > thanks kindly for the suggestion! > > > > > Glad to help and happy to learn as well...sometimes hard to see/envision all aspects of the damage from a single image. Are there any concerns about balance/weight post-repair? Maybe not being a rec shell as opposed to a racing version. > > > > > Having rowed in the Open Ocean event a few years ago, a little weight imbalance was lost as a result of wind, waves and current :) > > > > > I wonder what suggestions Maas up in Richmond might offer. > > > > > Continued good luck! > > > > No, balance is not an issue, any repair causes a shell to gain a little weight, but not significant, and again, it's a boat intended for beginners at this club, it's an old model and will likely be in for repair again. > > > > In fact, I just noticed last night that there was severe unreported hull damage near the stern, the hull was creased and soft over a eight inch area. > > > > > > > > Owner Dave Lee and I are good friends, so I check in with him on my various "stupid projects" to make sure my reasoning is sound, though I can hear him roll his eyes sometimes. > > > > > > > > One recent project has been building an adaption to old Aeros to allow mounting a Maas 24 tube rigger on to the Aero. Maas no longer makes the composite riggers and are down to one used pair in stock, very expensive at that. > > > > > > > > I do a similar thing as this boat, I cut and bevel a long 3 inch piece of oak or spruce stripping about 15 inches. I carbon fiber and glass it in > > > > then install inserts to bolt in the rigger. It's being tested now. > > > > > > > > Dave suggested I add support around the stern cockpit, but after I'd already done the glassing so I'll take my chance. > > > > > > > > There are photos on the FB page of that project in there if you scroll. > > > Good deal...I did happen to notice the additional images (actually you even referenced 3) this morning... > > > My Maas 24 is the older style with the CF wing rigger...I am going to be in a world of hurt if that get damaged... > > > > I have a "24" like that. The rigger shattered n on one side. I reconstructed it and glassed in an aluminum piece. I got the boat like that, I suspect someone did same thing to that boat as the yellow boat I just fixed, but could have hit something. That was the other blue/yellow boat in the photo. The rigger has held up for about 12 years now with a much poorer repair than I could do, as I did it at the rural boat yard with no power. > > > > I had a comment from a rowing friend that these Maas boats are "flimsy". > > > > I don't think so. They aren't built to thrive in mishandling type of abuse but they do fine in very rough water and I've seen very powerful people row the heck out of them. THey are built very lightweight, one person can carry a new one, while unwieldy and takes a special technique to put in water by yourself, it is light enough to handle. > > The Aeros are well made, they do suffer from damage around the edges where the top mould meets the bottom mould, that damage is also caused by carelessness with docks. > Several years ago my Aero was totaled by an 8,long sorry story, the boat was almost cut in half but the riggers remained firmly attached to the boat as it and me sank slowly into the bay. > I don't know what they had to do to destroy the one in the photo like that but it would take a lot of force > Regards > Roger The boat didn't float you after it filled? Hmm I tested an Aero and a 24 some years back by opening the port and filling it up while in the lake, it could float me fine, I could sort of row it. It had some styro inside the hulls, maybe they don't do that anymore? --- SBBSecho 3.06-Win32 * Origin: SportNet Gateway Site (24:150/2) .