O.S. engines rear bearingThis is a replacement O. S. Engines Rear Ball Bearing, and is intended for use with the O. S. 91HZ PS Helicopter Engine. Dimensions: Inside Diameter: 17mm Outside Diameter: 35mm Thickness: 8mm This Part Is Compatible With The Following O. S. Engines 61SX H 61RX H 61SX HG 61RX HGL 61SX HGL 70SZ H 91HZ F3C 91HZ PS3D 91RZ H 91RZ HDH 91SZ H 91SZ HPH FS200S P FS200S NOTE: This part may be compatible with other O. S. engines. Please check your owner's

•M3*6mm Flat Head Cap Screw（4PSC）

TCXO (temperature compensated crystal oscillator)

more control when the tail rotor is unloaded

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Eighteen months later

This is an updated Pitch Control Arm set intended for the GooSky RS4 Venom helicopter

FF-320 4 cyl  FF-240 4 cyl

Built-in Black Box: A large 128MB of onboard flash memory ensures you can log all your flights for fine-tuning and adjustment

●Powerful and precise servo suitable for T-Rex 500 CCPM cyclic and rudder servo use

Fit for Specter V2

Bearing set and spacers for the tail idler pulley

●600XN Clutch Ring x 1(Φ42