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.
- 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
| Manufacturer # | 38200 |
| Cylinders | Single |
| Benchmark Prop | 15×10 |
| Bore | 1.26″ (32mm) |
| Crankshaft Type | Threaded |
| Power Type | Gas |
| Plug Type | CM-6 spark plug |
| Stroke | 1.08″ (27.5mm) |
| Engine (Only) Weight | 26.86 oz (761.6 g) w/o muffler |
| Muffler Type | 2-piece aluminum |
| Ignition Weight | 3.70 oz (105 g) |
| Crankshaft Threads | UNF-2A 5/16-24 |
| Product Width | 2.7″ (70mm) at mounting tabs |
| Product Height | 3.1″ (140.5mm) bottom of mounting tab to top of muffler |
| Prop Range | 16 x 8 – 17 x 8 |
| RPM Range | 1,800 – 9,000 |
| Muffler Weight | 4.68 oz (132.6g) |
| Oil Type & Content | 50:1 mix ratio 2-cycle |
| Product Length | 5.5″ (139.5mm) from carburetor to front of drive hub |
| Displacement | 1.35 cu in (22 cc) |





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