OS 15650M 55HZ-R DRS Heli Engine

A state-of-the-art power plant for serious heli pilots!

The 55HZ-R DRS engine is designed to meet the unique demands of F3C competition and 3D flight!

• The Demand Regulator System (DRS) uses pressure to consistently deliver the optimal air-fuel mixture to the engine — regardless of the heli's attitude
• Two needles on the carburetor precisely adjust middle and high speeds
• A hole in the cover plate allows you to mount a sensor for the Futaba^® GY-701 governor, to ensure more stable flight.
• Cranks out 2,000-20,000 rpm