The OS 37SZ-H Ringed Heli Engine delivers plentiful power for 3-D thrills! Designed to deliver premium performance for 30-sized machines, from extreme aerobatics to stable hovering!
The OS 37SZ-H Ringed Heli Engine delivers plentiful power for 3-D thrills! Designed to deliver premium performance for 30-sized machines, from extreme aerobatics to stable hovering!
Features:
The crankshaft has been re-engineered to reduce vibration, resulting in smooth power across the entire rpm range
A larger rear bearing boosts power even more
Features the same mounting pattern and muffler dimensions as the 32SX-H, for easy installation in most 30-size helis.