I was having a conversation with Peterpan1 about the value of the EAA and how it encourages people to learn how to work with different materials so that they may build their own aircraft. It has revolutionized the light aircraft world.
The same could be done with bicycles.
In my opinion the current composite bicycle industry owes its existence to Burt Rutan.
The EAA offers courses on welding, composite construction and many other things that are as beneficial to learning how to build bicycles as they are for building airplanes.
I like a lot of the EAA technical books, which are compilations of old articles. Just finished their 4130 booklet, and while there is little a bike builder must know, it was all reasonably interesting to me. There are also resources in the EAA ambit like the 4130 welding tapes done by Tinmantech, and others. Those are of some more direct interest.