I recently installed a new OS .37 ring engine in a Caliber 30 and it appears to lack sufficient output power. The chopter hovers at a 3/4 throttle setting and is pulling only 5.5 degrees of pitch.
Inorder for the engine to get the helio to hover I have to screw in the HS needle valve a half turn out from the fully closed position. I'm using 10% fuel.
Any suggestions in what may be causing my problem?