>From what I've seen of the posts on KR2 accidents they virtually disintegrate, >just like a crumple zone on a car, dissipating energy.
If you hit something hard enough to tear the belt mounts out then you'll probably be nursing a very hot engine and have much shorter legs :-) It's rare that an impact is dead head on, therefore your load on the belts, mounting points and airframe will from an angle (which angle ????? :-). I wouldn't change from the plans. If you want to be real safe though, I use to build roll cages for stock cars that protected the driver form stopping in 4ft from 100mph (the length of the bonnet from the concert wall to the roll cage), I even tested one myself, accidentally. As I didn't build my KR2, I bought it 99.9% completed and have spent the last 9 months checking and finishing it, I have fitted a GRS ballistic chute because I don't know how the airframe will hold together (it looks good but........) . The ballistic chute is only for a structural failure or a forced landing in inhospitable country, TREES, MOUNTAINS !!! :-), hopefully to never be used, just to help fix my weights and balance problem. regards Barry Kruyssen Cairns, Australia RAA 19-3873 k...@bigpond.com http://users.tpg.com.au/barryk/KR2.htm