.55 HZ-H Hyper Ringed Competition Helicopter Engine by O.S.
This product was added to our catalog on December 4, 2009.
This is the O.S. 55HZ Hyper Ringed Helicopter Engine with the 40L Carburetor. The O. S. 55HZ-H Hyper Ringed Heli engine is cause to rejoice for 3D heli flyers! The 55-HZ-H Hyper Ringed engine cranks out optimum power with a minimum of space!
- Ideal for 3D flight-power equal to .60 size heli engines
- Same mounting bolt pattern and silencer size as the OS 50SX-H Hyper
- Dual needle 40L carburetor with four arm throttle lever for use with a variety of servo brands
- Two year limited warranty through manufacturer beginning at the date of purchase
- Displacement: 0.55 cu in (8.93 cc)
- Bore: 0.91 in (23 mm)
- Stroke: 0.85 in (23.5 mm)
- Practical rpm: 2,000-17,000
- Weight: 14.39 oz (408 g)
but bearings don't last very long.)