O.S. Engine OSMG0678 140RX-P Aerobatic Competition Engine  [OSMG0678]

Competition-Grade O.S. Engine 140RX-P for Pattern Flying

Serious pattern pilots will appreciate the O.S. Engine 140RX-P for its combination of displacement and controlled power delivery. At 23 cc and 3.5 hp, the engine provides the thrust needed for precise aerobatic sequences without excessive revving.

Optimised Low-End Power and Tough Construction

The 140RX-P is tuned to perform efficiently at lower revs, which supports the use of bigger propellers and helps reduce perceived noise. Construction features like the reinforced beam mount and one-piece crankcase increase the engine's resistance to the stress of aggressive manoeuvres.

Improved Heat Rejection for Enclosed Installations

Designers extended the cooling fins past the exhaust port to improve thermal management, a benefit for models with tight cowlings and long contest flights where consistent cooling is critical.

For advanced flyers and contest teams, the O.S. Engine 140RX-P offers a dependable platform that copes well with large props and sustained aerobatic loads.