I have a fma mini 20 speed control and a motor that the tag got scratched some. What I can read is FAULHAB(more scratched) MOTOREN AND 16A: 11.8

more scratched)
The prop measures about 9 1/2" and I have no idea of the pitch.
It flys fine but the motor quits gaining rpms at 1/2 thottle and doesn't seem to have enough umph to do much.
There is also a 9 cell 330ma nimh pack.
How do I set the speed control?
Anyone have clue as to what the motor is and why does it stop gaining rpms at 1/2 throttle?
Mike