OS 37 Heli

Plentiful power for 3-D thrills.

Designed to deliver premium performance for 30-sized machines, from extreme aerobatics to stable hovering!

• 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.