O.S. Engine OSMG1320 FF-320 Smooth Multi Cylinder Air Engine  [OSMG1320]

Balanced Multi Cylinder Performance from the O.S. Engine OSMG1320 FF-320

Serious model builders will recognise the O.S. Engine OSMG1320 FF-320 as an engine focused on balance and reliable operation. The flat-four architecture is chosen to provide steadier running across a wide throttle band.

Opposed Cylinders for Cleaner Running

The FF-320's opposed cylinder pairs help cancel vibration, which protects servo mounts and fragile fittings. That reduced vibration also means less frequent retorquing and improved longevity for glued joints and plywood mounts.

Practical Output and Operating Range

With 13.3 cc per cylinder and matched bore and stroke, the engine covers a practical RPM spread from about 1,800-8,500. Peak output is around 4.1 hp at 8,000 rpm, giving usable power for a broad selection of medium to large aircraft types.

If you fly regularly and want to cut down on vibration-related maintenance, the FF-320 offers a robust multi cylinder option with predictable performance.