GASOLINE

The O.S. FSa-72 II is the latest version of this popular sized, high-performance four-stroke engi..

Description : The GH15HZ is perfect for sport, 3D and scale pilots alike. But that’s on..

SPECIFICATIONS : Stock Number : OSMG1513 Displacement : 0.912 cu in (14.95 cc) Bore : 1.0..

O.S Engines Announcement of a world first 15cc (90 class) gasoline engine designed expressly for ..

Specifications : Displacement:22.12cc Bore:32.0mm Stroke:27.5mm Practical RPM:1,800-9,000..

Specifications : Displacement:32.98cc Bore:36.0mm Stroke:32.4mm Practical RPM:1,8..

MORE POWER FOR 50CC CLASS AIRCRAFT! With the GT60, O.S. gives fliers of 50 cc models everythi..

This is a new item from OS. Will be available at the beginning of January 2020. Make rese..