OS Engines 91HZ-R 3D Speed Helicopter Engine

This 91HZ-R 3D Speed Helicopter Engine from O.S. Engines offers an impressive power output for high-performance RC helicopters and glow powered RC helicopters. With a short stroke delivering a wide range of RPMs, you can expect optimal performance from lower RPMs ensuring a stable flight to higher RPMs supporting advanced aerobatic maneuvers. The engine's size and weight make it an ideal choice for larger RC helicopters requiring more power. icon-boxIn The Box (1) 91HZ-R 3D Speed Helicopter Engine with: (1) No.8 plug (1) Check Valve (1) Head gasket 0.2mm x 1