55HZ-H Hyper Ringed .55 Helicopter Engine (OSMG1955)

OS 55HZ-H Hyper Ringed .55 RC helicopter engine is a compact, high-performance powerplant that delivers serious 3D power in a small footprint. It installs in the same space as the popular 50SX-H Hyper and features a brand-new 3-needle 40L carb plus a four-arm throttle lever for easy, precise servo adjustments.

Beyond its size advantage, it benefits from new porting for improved airflow and durable, corrosion-proof bearings that help keep operation smooth and reliable under demanding flight conditions.