O.S. Engine OSMG1250 FT-300 Flat Twin RC Aircraft Engine  [OSMG1250]

Power and Authenticity from the O.S. Engine FT-300

RC aircraft builders looking for convincing scale sound and steady power will appreciate the O.S. Engine FT-300. As O.S.'s largest horizontally opposed flat twin, this unit is designed to lift 1/4 scale models while keeping a compact footprint and refined running character compared to typical chainsaw-style gasoline motors.

Precision engineering that matters

The FT-300 reflects O.S. Engine's focus on accuracy and durability. With a displacement of 1.488 x 2 inches and a 1.323 inch bore, the engine produces up to 4.0 hp at 7,000 rpm and operates well between 1,800 and 9,000 rpm. Weighing 64.5 oz, it balances power and manageable mass for practical airframe fitment.

Advantages of the horizontally opposed twin

The opposed twin layout reduces vibration and improves throttle smoothness, giving a more scale-like feel in flight. Standard inclusions such as a glow plug, firewall mount and a dedicated propeller locknut assembly help simplify installation and ensure stable performance.

The O.S. Engine FT-300 suits experienced pilots who prioritise authentic running behaviour and robust output for 1/4 scale projects, delivering refined performance without excess bulk.