Actually, I've never heard of the heli before ... just trying to gather some info. Didn't mean to imply that there was a collective version.

Thought that if it were collective, maybe your pitch was set to high ... still might be the case with fixed pitch.

Pitch = load on motor. The more pitch, the more work the motor has to do. If pitch is too high, motor might bog down.

Good Luck,
d.tipton