[img] Has any one experience of twin brushless motors. I'm having great difficulty in getting both motors to start at the same time. One usually starts while the other just hunts or screams and refuses to start. Sometimes when the first motor starts I can get the second to run by turning it over by hand, after a few seconds however, this fails to work. I've tried single batteries and independent batteries.

Hello flyer37. It sounds like that other motor is either malfunctioning, or was manufactured incorrectly. I would try to return it and try a new one, or if they won't accept returns just buy another one just like it.

Also, if it isn't the motor, it could be the receiver that it is connected to, so you might want to change that out next.

Let me know if you have any more questions or additional information. to help me diagnose the problem better.