O.S. Engine OSMG0830 FS-30S Surpass High-Torque .26-Size Engine  [OSMG0830]

Compact Torque Upgrade from the FS-30S Surpass

Pilots wanting extra torque and cleaner running will find the O.S. Engine FS-30S Surpass an effective upgrade path. Designed for .26-size mounts, this 4-stroke delivers about 20% more power than the FS-26 while keeping noise and fuel burn low for its class.

Key Features That Improve Flying

Installed in models like the Great Planes Piper J-3 Cub .20 or a T-Craft, the FS-30S Surpass supports larger propellers to increase thrust and produce a fuller exhaust note. The ringed piston plus rear-mounted updraft carburettor boost compression and throttle response, and the dual ball bearing crank with helix gear-driven camshaft promotes smooth, long-term reliability.

For hobbyists who want a straightforward power improvement without major airframe surgery, the O.S. Engine FS-30S Surpass offers a compact, durable solution that suits sport flying and basic aerobatic work.