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The GT60 is the latest gasoline engine from O.S., and it gives fliers of popular 50cc class aircraft everything they want most - durability, efficiency, easy operation and super-strong performance. Instant throttle response makes the GT60 an outstanding choice for 3D flying. When pilots need more power ASAP, this engine delivers!

Modelers asked for a conventional, rear-mounted carb and reed valve, and O.S. listened. The carburetor is custom-designed specifically for this engine by Walbro. O.S. also takes advantage of liner-less cylinder construction for the GT60, and machined the head and cylinder as one piece rather than joining them with bolts. Benefits of the overall cylinder design include lower weight, improved cooling, and exceptionally efficient exhaust scavenging.

The GT60 gasoline engine is available with or without a Pitts-style E-6020 muffler. The muffler includes anti-crush tubes for the mounting bolts and webbing reinforcement at high-stress points, for a long life of performance-enhancing operation.

Displacement: 59.91cc (3.65 cu in)
Bore: 44 mm (1.732 in)
Stroke: 39.4 mm (1,551 in)
Practical RPM range: 1,600-8,000
Output: 6 hp @ 7,000 rpm
    Engine: 1,400 g (49.38 oz)
    Muffler: 178 g (6.28 oz)
    Ignition module: 105 g (3.7 oz)

OSMG1560 GT60 Gas Engine without Muffler       $1199.99
OSMG1561 GT60 Gas Engine with E-6020 Muffler    1299.99

Visit the O.S. Engines website at

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