Quote:
Originally Posted by cgarr
Its not too heavy for an 1/8 inch skin and ribs as you can see, I think they use it mostly because its rot resistant.
|
Only the thin plywood used on Craig's plane is mahogany as it and birch are basically the two common aircraft certified types of plywood. The structural solid wood components are typically aircraft grade Sitka Spruce or sometimes the slightly heavier douglas fir.
The aircraft grade and some marine grade plywoods are manufactured in a hot press with waterproof glues. They have no voids inside and are very uniform in quality from sheet to sheet unlike building grade plywood which often have small voids inside.
I built my aerobatic wing using Sitka Spruce, Douglas Fir (main front spar) and Okoume marine grade plywood. It is good for +/-10 G's.
Wood is very rewarding to work with..... I wish I had more time to play with it.
