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OS Engines GT22 for .90-1.20 Sized Aircraft

The GT22’s rear-mounted Walbro carb is custom-designed for this engine. A choke rod guide has been integrated into the crankcase, minimizing set-up time and hassle. Redesigned for even easier starting, the included IG-02 electronic ignition system handles 4-6 cell NiCd/NiMH or 2-cell LiPo/LiFe batteries.


•Produces nearly 10% more power than other similarly-sized 2-stroke gas engines

•Electronic ignition system accepts NiCd, NiMH, LiPo or LiFe batteries

•Uses the same beam mounting as most glow engines, allowing the GT22 to go in many aircraft designed for 1.2 cu. in. glow engines

•Included Pitts muffler is built to last, with reinforced mounting bolt holes and webbing at high-stress points

•Generous two-year warranty


Displacement: 22cc (1.35 cu in)

Bore: 32 mm (1.26 in)

Stroke: 27.5 mm (1.08 in)

Practical RPM Range: 1,800-9,000

Output: 2.66 hp @ 9,000 rpm


Engine: 761.6 g (26.86 oz)

Muffler: 132.6 g (4.68 oz)

Ignition Module: 105 g (3.7 oz)

Suggested Props: 16 x 8, 16 x 10, 17 x 6, 17 x 8

Includes: Pitts-style muffler, electronic ignition module, CM-6 spark plug, muffler gasket, bolts