So, I think this would be a good thread, the word composite is thrown around a lot but it has me wondering, what exactly is considered a composite airframe?

1, All fiberglass frame with wood/carbon formers for both wings and fuse and stabs
2, A balsa covered with fiberglass airframe for both wings an fuse
3, Fiberglass fuse but film covered wings
4, Honey comb built everything
5, Airex/fiberglass with wood/carob formers both wings and fuse
6, Fiberglass fuse with foam wings, possibly covered with fiberglass.

To me I really only consider option 1 and 5 as composite, while the others use different materials I don't think they have the same strength or appeal.