> I know that carbon graphite can be brittle. I think it could build it strong enough but would it be springy enough?
Carbon fiber is known for it's stiffness, but what you want in a gear leg is just the opposite. I don't know of anybody that's using a carbon fiber gear leg, and that alone is good enough for me. Fiberglass works great, as as has been demonstrated by the canard guys and most KRs as well. It's also cheaper. I'd stick with fiberglass or aluminum, personally. > I saw that someone made a tail spring in this manner and it got me thinking. That tail spring is Jim Faughn's. Actually, the core is fiberglass (maybe a golf flag pole?) and broke at the Gathering. I was the only guy that had any kind of composite, and it happened to be carbon fiber. I think we wrapped about four layers of 5.85 ounce CF around it We thought it was a temporary fix, but it's still working today... Mark Langford, Huntsville, Alabama see KR2S project N56ML at http://home.hiwaay.net/~langford email to N56ML "at" hiwaay.net --------------------------------------------------------------