I'm in the process of building a stitch and glue outrigger sailing canoe (wharram melanesia ) and the plans don't call for fiberglassing the whole hull but only the joins inside and out with fiberglass tape. I have decided to glass the whole hull with 4oz s glass for some added protection to the plywood. The glass is not wide enough to cover the hull so I'm planning to use two pieces that overlay over the kiel. I was planning to do the following steps to glass the hull 1 side at a time:

1. Apply a coat of epoxy on the respective side using a roller.

2. immediately lay the glass tape on the seams, wet it out with more epoxy and use a fin roller to make sure its flat.

3. Wait until the epoxy is tacky and then roll the s glass over, wet it out and flatten it with a fin roller

4. If im fast enough and the epoxy is still tacky on the area that overlaps repeat steps for other side. If not clean the cured aera with a damp cloth and sand it before starting with the other side. Thoroughly remove dust.

5. Cut of the excess cloth that overhangs before the epoxy cures.

Will do the fiberglassing in a tent with controlled humidity and temperature ( 22c 71f ) as the epoxy manufacturer recommends, will also have the epoxy warmed up at the same temps before starting. Any advice is welcome! Thanks in advance!

Hi! Long story short, my dad is converting a space sailor 24 from a sailing boat into a leisurely river displacement motor-boat (hope I got that right) To have the boat in shallow river water, he needs to remove the keel. He flat out refuses to unbolt it from the floor of the boat, crane it out and then patch up the hole. He wants it partially/most cut off with just a small amount remaining.

My husband is a welder of 25 yrs and has tried cutting it with an oxy torch, and the following week tried gouging it with an air arc gouger. Neither worked. We only managed to cut a few cm with the oxy and it took over an hour. The gouger didn't work at all.

Does anyone have any ideas (other than don't cut it off....we've all tried that one many times, he won't have a bar of it) to cut this thing? It's in an awkward position propped up so would need to be removed in place from under the boat.

Thanks

https://preview.redd.it/pgn1bc701o6e1.png?width=1919&format=png&auto=webp&s=1e306d7dd548013d969407bc09a98b2bbd9c717c

This may be only tangentially related to boat building, but I don't know where else to ask.

I'm currently delivering a Sunreef 80 Eco from the Canaries to the Caribbean and we have two water makers that both have had the AC converters fail. I've always have had direct AC ran WMs but these run off of DC with a converter in the system head.

Why would one want to convert to DC to run high pressure pumps if you still need AC power to run them? Is there something I'm missing?

Can someone please please help me out with fixing this boat...

I tested out strapping it, with that wood panel/foam bit (pictured) between the window and strap. But it keeps moving around and I’m worried I’m gonna make a mess. Do I do that anyway and just clean up after quickly?

It feels like tape won’t hold it as I’m strapping , as the window feels heavy and tape won’t hold so nice to the rough paint?

https://preview.redd.it/8lsbi26buf6e1.png?width=1898&format=png&auto=webp&s=7030c74f39b1ecac4878e15a304a859ef04916a3

The skeleton is built. Planning on making a skin to wrap around and sinch everything together. The plastic parts will be reinforced. Weighs below 10kg at the moment and is fairly strong. Might make locking pins through the joints

https://preview.redd.it/9vcftmuf436e1.png?width=1365&format=png&auto=webp&s=8272cbcb4a4e5566903c68277a61b52984718e40

I want to design and build a 12' aluminium boat myself. The boat will be riveted. Intended use is fishing on rivers 0-3 knots of current, no rapids, minimal waves, basically only have to worry about the wakes of other boats/ships. The engine will be 6HP outboard. The boat has to be extremely light 30-40kg.

Instead of having the bottom flat, I have a 16deg deadrise. I figured a design like this would offer a stable boat, and also be stable when turning on plane.

Sideview

Frontview

Nose

Having only flat panels would make assembly much easier, but I'm unsure how it would plane on the water.

How can I test this design before building it at full scale? Does anyone have experience with this type of boat? Thanks!

Very nice boat building film

So i want to make a small rc boat with a 40mm ducted fan(4000kv) and a 4s 1600battery, but i need it to float on 5cm or less of water cause,what hull design should i use, I'm thinking of a flat bottom cause i believe it would be the most buoyant. What should i do?