Woodworking projects & plans for "airboat plans rc": rc air boat scratch build. i built it from 6mm depron foam and regular hot glue. it’s not water tight but i will seal it up after. for now its gona work great in the snow. thanks for watching. here is a scratch built air boat i built from left over r/c air plane parts, i plan on. Mini airboat built off of some plans from lakebuggy airboats. this boat has a 13hp honda gx390 engine and a 42×18 propeller from rnd propellers. the hull is 4’x8′ thin plywood. homemade, fits in the bed of a pick up truck. motor stand and cage are 1/2" conduit, mig welded.. Re: building an r.c. airboat post by dglover » wed jul 31, 2013 3:39 am i have a nitro airboat built by alligator tours it was around $ 275.00 you can see it online under that name..