O.S. Engine OSMG1320 FF-320 Precision Flat-Four Airplane Engine  [OSMG1320]

Smooth, Balanced Power from O.S. Engine OSMG1320 FF-320

RC aviators who appreciate engineering detail will find the O.S. Engine OSMG1320 FF-320 a standout choice. This flat-four layout is a purpose-built solution that emphasises balance and consistent running characteristics for scale and larger sport models.

Flat-Four Layout for Low Vibration

The defining feature of the O.S. Engine OSMG1320 FF-320 is its opposing twin cylinder arrangement. That layout cancels out much of the inherent vibration, which helps extend the life of the engine and reduces stress on mounts, radio gear and the airframe itself. Pilots looking for cleaner throttle response and less airframe chatter will notice the benefit.

Performance Numbers to Plan With

This engine offers 13.3 cc per cylinder across four cylinders, with carefully matched bore and stroke for usable power. Expect a practical RPM window of 1,800-8,500 and an output of 4.1 hp at around 8,000 rpm, making it suitable for a range of medium to large model aircraft.

For experienced flyers and competitors, the FF-320 provides a smooth-running, multi cylinder option that helps preserve airframe integrity while delivering reliable power for demanding flying schedules.