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5 out of 5 Customer Rating

GT22 22cc Gas 2-Cycle Airplane Engine with Muffler

Item No. OSMG1522
Brand Logo
5 out of 5 Customer Rating

GT22 22cc Gas 2-Cycle Airplane Engine with Muffler

Item No. OSMG1522
$429.99 Price reduced from $679.99 to
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Next Shipment February 2021
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Product Details

Gasoline power for your .90-1.20 aircraft

An investment in O.S. gasoline power quickly pays for itself in fast starts, higher power and more flights from your fuel budget. For the many planes that use 2-stroke .60-.91 or 4-stroke 1.20 glow engines, the GT22 – the third gasoline engine available from O.S. – is the perfect choice. It cranks out nearly 10% more power than other 2-stroke gasoline engines of similar size! Throughout the GT22, the fit and finish are outstanding – always delivering the same high performance as when you first installed your brand new, hand-crafted, quality inspected O.S. engine.

O.S. Two Year Limited Warranty
  • Pitts style muffler has been reinforced at seam, bend and mounting bolt locations for strength.
  • Redesigned for even easier starting, the IG-02 electronic ignition system handles 4-6 cell NiCd/NiMH or 2-cell LiPo/LiFe batteries.
  • Includes single prop nut with locking nut.
  • Uses beam mounting for easy installation in planes designed for glow power.
  • Rear-mounted Walbro carburetor is custom-designed for the GT22 – a choke rod guide has also been integrated into the crankcase for effortless setup.
The GT22 Pitts muffler is built to last, with reinforced mounting bolt holes and webbing at high-stress points.
Complete package includes engine, muffler, electronic ignition module, CM-6 spark plug, muffler gasket and bolts.

Product Specifications


Displacement 1.35 cu in (22 cc)
Engine (Only) Weight 26.86 oz (761.6 g) w/o muffler
Power Type Gas
Crankshaft Threads UNF-2A 5/16-24
Crankshaft Type Threaded
Cylinders Single
HP 1.75PS 1.73HP @16,000 RPM
Ignition Weight 3.70 oz (105 g)
Muffler Type 2-piece aluminum
Muffler Weight 4.68 oz (132.6g)
Oil Type & Content 50:1 mix ratio 2-cycle
Plug Type CM-6 spark plug
Product Height 3.1" (140.5mm) bottom of mounting tab to top of muffler
Product Length 5.5" (139.5mm) from carburetor to front of drive hub
Product Width 2.7" (70mm) at mounting tabs
Prop Range 16 x 8 - 17 x 8
Recommended Fuel 87 - 93 octane gasoline
RPM Range 1,800 - 9,000
Stroke 1.08" (27.5mm)
Benchmark Prop 15x10
Bore 1.26" (32mm)
Carb Type Walbro, rear mounted