Steel Boat Construction Methods 2021
16.08.2020
Log in or Sign up. Boat Design Net. I am looking at a custom homemade 40' steel constrution. The seams appear to be "welded lap joints". I can see not rust from the inside below the water line. The bilge was completely dry. Are lap joints a big Steel Boat Construction Methods 2021 no-no in steel boat hull construction? The bow apperas to be double plated. I guess to break ice? Oh the boat is about 30 years Steel Boat Construction Methods 2021 old. Thanks, Charlie.
CB HawsSep 17, This is an interesting question. I have spent many years around steel vessel construction none of it on recreational Steel Boat Construction Methods 2021 vessels thoughand have only seen butt joints used on shell plating. I dug out an old book consgruction "A Guide steel boat construction methods 2021 Sound Ship Structures" and they talk almost exclusively about butt welding sheel Steel Boat Construction Methods 2021 plate with one exception.
Does the vessel you are looking at have methos fillet weld on either side of the lap? Given the uneven surface Steel Boat Construction Methods 2021 that sterl lap joint produces, how are the longitudinal and transverse structural members connected to the steel boat construction methods 2021 Are the lap joints visible on the exterior of the hull, or is some filler compound used Steel Boat Construction Methods 2021 to fair it. If a filler compound was used, I would wonder what the condition of the welds under that.
Sorry to answer your question Steel Boat Construction Methods 2021 Steel Boat Construction Methods 2021 with more questions, but I've never seen a lap joint used on shell plating with the possible exception of doubler plates being added. ChapmanSep 18, Let me give you some more questions. Is the boat somewhat Steel Boat Construction Methods 2021 conventional other than the lapwelds? I cannot remember which book I saw it in, but I once saw a boat built in mehhods lapstrake clinker Steel Boat Construction Methods 2021 style out of steel. This is a real rarity.
As Chapman mentioned, the joints would need to be continously welded inside and steel boat construction methods 2021. If not, interior wise, there would be moisture intrusion into the seams, bad news.
Have you guys ever seen a lapstrake hulled steel boat? Like I said above, I saw one once in a Steel Boat Construction Methods 2021 steelboatbuilding book. But other than possibly ice-work, Steel boat construction methods 2021 think a proper steel boats much more than adequate strength wise.
The same would go for a repair where someone welded plate over a bad Steel Boat Construction Methods 2021 section instead of properly cutting steel boat construction methods 2021 section out and insetting a new piece, a matter of fact, plate over plate would be much worse I would think.
TGoz TGoz. The overlap method was common for a decade metgods so after the move from riveting joins to welding. The odd hull is still produced that way I've surveyed a few metthods hulls built to sreel overlap method.
Either alternate under over plating, or lapstrake or jogged seam where the overlap is heated with a torch and hammered over the lower plate till it fits snug.
In all types both the inner and the outer plate edge are then fully welded to the plate. The boatyard saves a lot of time in fitting since you can methodss a large tolerance on the edges. The problem is the internal void along the overlap and if the welds don'Steel Boat Construction Methods 2021 t seal completely constructuon corrodes.
Generally it seems to be ok. When Steel Boat Construction Methods 2021 they do 2201 the rust puffs the seam up quite visibly. Repair is Steel Boat Construction Methods 2021 easy if you can get at the inside at the trouble spots.Steel Boat Construction Methods 2021
All the best. MikeJohnsSep 19, Thanks Mike. Thanks guys for the input. The boat was built around It is lap jointed not joggled or over Construction Steel Methods 2021 Boat under under over or what he said. Since the interior is pretty much non-existant visual inspection was easy. All seams are welded inside and. You Steel Boat Construction Methods 2021 Steel Boat Construction Methods 2021 can see each lap strake from the inside and no rust is visible below the water line. As you get above the water line the Steel Boat Construction Methods 2021 inside looks to have been tarred or steel boat construction methods 2021.Steel Boat Construction Methods 2021 The bow section is doubbled for no apparent reason.
The bow section is rust free on the inside and the outside has paint. Constructin of the seams are faired; just very nice welds. The guy was a welder who built this one up. I just figured lap joints were Steel Boat Construction Methods 2021 easier to do; but my concern was water in the lap. I could see no evidence of rust. The bilge had no water at all. The boat was in the water and running. The only rust I could find was was in the butt welded deck plate where constructiom side Steel Boat Construction Methods 2021 door has been leaking for some time.
This boat was never really finnished methkds I have not found out why. It may be because the Steel Boat Construction Methods 2021 original owner builder lost. The last two owners were boatt to finnish her; but got interested in bigger constructjon. The construcction sides are aluminum. The inside trim work is all stainless.
The guy who constructon the trim Steel Boat Construction Methods 2021 steel boat construction methods 2021 was a master fabricator. The engine hatches are stainless not welded together; but bent and rivited. A work of art. Other wise the boat looks steel Wood Boat Construction Methods Gym boat construction methods 2021 crappy, and needs a total redo. Thanks. I will let you know what the surveyor says. Oh by the way what is a 40 foot boat worth in scrap metal?
I don't want to get stuck having to be the guy who has to have it cut up! CB HawsSep 19, Steel Boat Construction Methods 2021 Jehardiman, I hear you. Steel boat construction methods 2021 was an interesting odity. I Steel Boat Construction Methods 2021 never gave thought to what might have motivated this boat being built.
Take care. Was it sort of constructjon this see below - can be used to good effect. MarkCSep 20, Thanks for the photos. Yes Steel Boat Construction Methods 2021 that is pretty much how she looks. The plates are a little wider; but that syeel the fabrication method.
I am sure it is really Steel Boat Construction Methods 2021 strong; but the laps had me worried. CB HawsSep 20, Actually laps steel Steel Methods 2021 Boat Construction Steel Boat Construction Methods 2021 boat construction methods 2021 an advantage for some welding issues consrruction you can use drag rod. Steel boat construction methods 2021Sep 22, MikeJohnsSep 22, Steel Boat Construction Methods 2021 You must log in or sign up to reply. Show Ignored Content. Similar Threads. Steel Boatbuilding near Baltimore, MD? Steel boat construction methods 2021 5 Views: 1, Replies: 10 Views: 2, Replies: 3 Views: 2, Tanton Apr 30, A Steel Boat building video!
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