How do you determine the optimum length of the arms to the motor? I am considering modifying an AR Drone 2.0 and am wondering if extending the arms an inch or two would make it more stable. Thanks.
The only way to really find out is to try it but with something like that, which has already been pretty well optimized in the design process, it might not result in much of an improvement. Give it a try though and come tell us about it when you're done.