Brushless Electric Motors and ESC's for Aircraft

Brushless RC motors along with better battery technology have turned this hobby on it's head in the past few years allowing electric models to perform just as well, and in many cases better, than their engine powered counterparts.  Advantages of Brushless Motors:  No brushes or commutator to wear out, Don't have to worry about cleaning the brushes or commutator, There's no Friction from brushes to slow the motor down, Longer flight times and extended battery life due to the absence of friction from brushes, Much higher power to weight ratio.