firegremlin
Active Member
Any issues to watch out for? I'm thinking of a box with structural diagonal baffles, kinda like the inside of an ercoupe wing, with straight upper and lower surfaces that go past the sidewall and form a c-channel that spars glue into. The ribs (wood?) would be two-piece, bottom thin solid strip and upper bow with plywood web that goes down to the tank.
My assumption for exploring this: the amount of skin needed to make a sufficiently stiff box would be close to the amount of skin needed to make a sturdy fuel tank.
Do fuel-resistant epoxies have known problems that would make them unsuitable for a stressed structure like this?
The goal is to get enough stiffness to use fowler flaps on a cub-style wing, and skip inboard compression struts and drag wires/rods. Extra bonus if there's a possibility of getting enough torsional stiffness to use a single strut.
My assumption for exploring this: the amount of skin needed to make a sufficiently stiff box would be close to the amount of skin needed to make a sturdy fuel tank.
Do fuel-resistant epoxies have known problems that would make them unsuitable for a stressed structure like this?
The goal is to get enough stiffness to use fowler flaps on a cub-style wing, and skip inboard compression struts and drag wires/rods. Extra bonus if there's a possibility of getting enough torsional stiffness to use a single strut.
