O.S. Motors for RC Aircraft

O.S. Motors for RC Aircraft

O.S. is a widely recognized name in model aircraft power, and this category gathers O.S. motors across a spread of displacements for sport and scale flying. The selection steps through several sizes so you can match power to airframe.

Displacement Range

Sizes here run from the .10 and .15 through the .30, .40, .50, and .52, giving a ladder of outputs from light models up to larger airframes. As a rule, a bigger displacement suits a heavier or higher-performance model, and the airframe maker's recommendation is the best starting point.

Mounting, fuel, and setup vary from one size to the next, so confirming the displacement your kit calls for keeps installation straightforward. A correctly matched motor makes for predictable throttle response and flight behavior. Larger displacements generally turn bigger propellers and suit heavier airframes, while the smaller sizes keep weight down on lighter sport models, so the number stamped on the engine is a useful guide to where it fits.

Compare the available sizes below against your model's requirements.