The 55HZ-R DRS Ringed delivers state-of-the-art power for serious heli pilots! It includes the Demand Regulator System for outstanding run consistency and a built-in mount for Futaba GY701 and CGY750 rpm sensors. Two needles on the included 40-LR carb let pilots precisely adjust middle and high speeds.
Includes: #8 plug, 40-LR carb & check valve.
2-year limited Hobby Services warranty.
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 for mounting an rpm sensor for the Futaba® GY-701 governor or CGY750 gyro, ensuring precise rpm control.
0.91 in (23 mm)
O.S. 40L-R dual needle rotary
0.55 cu in (8.93 cc)
2.1PS, 2.07 HP @ 17,000rpm
3.6 in (90.9 mm)
3.0" (76.6mm) from backplate to front bearing
2.0 in (52 mm) at mounting tabs
10-30% nitro content, at least 18% lubricant content (heli blend)