On my main gear I used 1/4-20 nylon wing bolts to hold the gear. I drilled and tapped threads directly into the maple plywood without using blind nuts. If I hit the ground hard it will shear the bolts off and not tear out the bottom of my fuselage

After the first pisture of the LT40 ARF was taken I changed the wing to bolt on. I drilled two holes in the F2 bulkhead to receive two dowels that were epoxied into the wing. The wing was reinforced underneath inside the fuselage where you cannot see it.

I added maple ply at the rear for the two nylon wing hold down bolts. There again the threads were tapped directly into the plywood