Kenny used Dynel because it was free. The thing started out as more of a 'What If...' rather than a 'Can Do.' (Get Stu to tell you about the radar domes.)
I don't think he had a hundred bucks in the whole project when he realized the strength-to-weight was coming out well enough to carry a human, albeit a small one. (I tore my trousers on that U-Control bell-crank he used for the trim tab and I'm not that big.) -R.S.Hoover