I was going to use a hybrid chassis like the one for the ultralight, but with two modifications. I was going to use 2" X 1/8 tubing in an A formation, attaching to 2 X 2 X 1/8 angle which would be on the edge of the 5 x 8 floor. The floor would be either 1/8 or 1/4 baltic birch, with 1 1/2 foam, and lumber, and 1/8 or 1/4 baltic birch on the bottom. The bottom and sides would be epoxied, and fiberglassed. Would the 1/8 be strong enough with the fiberglass? Is the angle iron enough, or is it overkill?
I plan on using a torsion axle, for the dampening factor.
The walls would be 1/8 baltic birch, frame and foam, and 1/8 baltic birch. The outside would be fiberglassed as well. The roof, is also 1/8 bb, foam and spar, and 1/8 bb. The top will be fiberglassed. I also plan on painting the outside of the tear, with some form of marine paint.
I live in Edmonton Alberta, and I know I can get 5 x 5 baltic birch from Russia, and marine grade 4 x 8 in 1/8. With the 5 x 8 tear, I think I would have less waste with the 5 x 5 baltic, even though it is almost the same price as the marine ply. ($23 for 5 x 5 BB, and $48 for 4 x 8 marine ply)
Sorry to be so long winded. Hope this is clear. Glad for this FABULOUS resource!
John
