OS Engine GF-40R w/F-6040 silencer

Ideal for aerobatic or scale aircraft, the 4-stroke GF40R offers excellent torque and a realistic sound, plus fuel economy and the fit and finish that O.S. is famous for. This version has been optimised for UAV use, so has a more durable exhaust valve seat and ballraced rocker arms for reduced wear and increased durability. Other features include a Walbro carburettor and an integrated choke rod guide that simplifies the installation. The GF40R includes a muffler, spark plug and ignition module.

FEATURES:

Engine mounting system that matches that of the O.S GT33
Positive Crankcase Ventilation (PCV) system helps keep the model and the environment cleaner without blow-by gas and oil waste
Choke rod guide is integrated with the backplate for convenience
Includes a special Walbro carb and a compact, lightweight ignition module

Supplied complete with the new, highly effecive F-6040 silencer.

Specifications
Weight	1,378g w/Silencer & Ignition
Displacement	39.96cc
Bore	40mm
Stroke	31.8mm
Practical RPM	1,800 - 9,000