Originally Posted by B12
14x9 has too low pitch for any speed with given low kv motor.
My similar ship (v-max eco from Lindinger in Austria) has Turnigy 3648 850kv motor and 13x11 Cam Carbon prop. About 60 amps with 3s battery. I would get a 13x13 but those don't exist.
What speeds are you getting with that prop?