It's a four stroke. It's a petrol with all the cleanliness and economy that comes with it and it's an OS. Not a lot to dislike here!
The O.S. GF 40 combines the ease of use and economy of the traditional 4-stroke engine with a gasoline engine. The fast and powerful response is ideal for scale sport and aerobatic models. The attachment points are identical to the GT 33 2 stroke engine. The carburetor was from O.S. developed in collaboration with WalbroŽ specifically for this engine.
Supplied with ignition unit and silencer.
A superb engine that will give years of trouble free life. It is after all an O.S.!
|Distance of screw hole / longitudinal [mm]:
|Distance of screw hole / crosswise [mm]:
|Item Number Manufacturer:
|Diameter of fixing hole [mm]:
|rpm range, approx.:
||1800 - 9000
||18x8 - 20x10
|All-up weight [g]:
|Height approx. [mm]:
|Cylinder capacity [ccm]:
|Length to hub:
|Output [kW / PS] at [rpm]:
||WT GF 40
|Shaft diameter [mm]: