RE: Breakaway engine mount screws - nylon?
I'd think it would work. I would think if it'd hold up on an engine test stand there'd be no problems with flying it like that. My experience with hoping the fiber filled engine mounts will break first hasnt' been good. Also, I quit using two big huge 1/4" nylon bolts for wing hold downs. I normally use one #8 and have never had one break, except in a crash. Back when I used the normal two 1/4 inch bolts, everything in sight except the bolts would usually break.