[Ether]

Just discovered this thread. From the vantage point of a month later, I suppose it is possible that Hawiian Cadder was using a defective RS775. Do you still have that motor? Do you have another RS775 you could compare it to with your "thumb test"?

A few additional remarks. Peak output power occurs at half free speed, not at stall (post #42), and not at the intersection of the torque and speed curves (unless the graph is scaled to make it so) (post #17). Kv (rpm/sec) is the velocity constant, not the motor constant. Motor constant is Km which is (stall torque)/sqrt(input watts at stall) (post #27).