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FR7-420 Sirius7 7-Cylinder Radial 4-Stroke Engine..
FF-320 Pegasus 4-Cylinder Ringed 4-Stroke Engine..
An excellent choice for power and scale appearance!
The twin-opposed cylinder layout of this mo..
Key Features More power for 60- to 90-size planes Proven performance and reliability Fits great i..
Key FeaturesVibration-free runningUltra Light—weighing only 44 ounces..
Building the 4-Stroke of the future, one engine at a time!
Surpass™ engines share features that ..
200-size power in a 120-size package!
How do you get 200-size power from a 120-size engine? O.S..
The Tradition Continues...
O.S. leads the way in advanced 4-stroke engine technology, and you’l..
Give your 40-size plane the FSa power advantage!
Mount the FSa-56II in your model, and see the ..