From Experts for Experts... The performance of Jeti "Phasor" motors is incredible.. "Phasor" motors and Jeti Advance Brushless speed controls are both manufactured by Jeti model. The motors are extremely powerful and are intended for direct drive of propellers instead of using gear reduction. The motors are small and light. In our tests we found them to be even more powerful than our computer simulations predicted. The motors have very strong propeller braking which you'll appreciate if you fly high-performance electric sailplanes.