Brenner,

Two scenarios which would concern me regarding motor shaft bending are:

a) A nose over on landing or a hard touchdown causing a blade to contact the ground. (This happened to me on an early Contra competition flight in very gusty windy conditions, only damage was a cracked front prop).

b) Hanger rash damage, taking the model in/out of workshop or car. We have all banged part of a model on something we shouldn't no matter how careful we are.

I'm just slightly concerned that the bullet proof nature of the existing design might be compromised with this design.

Malcolm