Engines & Accessories

.91 size Powerboost Pipe from O.S. Engines.FEATURES: Fits O.S. Speed 91HZ-R 3D and 91HZ series engines          Developed exclusively for 3D flights with 90 size...

Key Features Fits common and popular 50-size helis on the market Designed to be the most powerful in its class Incorporates SetRight™ needle valve assembly Piston/liner made of unique combination of ABC Uniquely...

OVERVIEW Precisely regulated current ensures the optimum ignition temperature and low power consumption with the Graupner Smart Glow Plugs Booster, as well as a steady idle and smooth transition from idle to full throttle.  The power supplied to...