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GT15 15cc Gas 2-Cycle Airplane Engine with Muffler

Item No.
OS Engines - OSMG1515
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Product $508.76
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Estimated Total: $508.76
Estimated Total: $508.76
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Solid, gas-powered performance

The GT15 is the newest and smallest offering in the OS Engines gasoline engine line. It weighs only 904g and cranks out over 2 horsepower and 15,000 rpm! Plus, its compact enough to fit in most airplanes that require a 2-stroke 61-size or 4-stroke 91-size engine. The carburetor design is made specifically for this engine. Set also includes an ignition module.
O.S. Two Year Limited Warranty
  • Offers power equivalent to a .90 4-stroke or .60 2-stroke glow engine, with the superior fuel economy advantages of gasoline.
  • Features the same mounting pattern as the 65AX.
  • Includes the compact IG-06 ignition module.
  • Specially designed O.S. carb makes tuning a breeze and delivers excellent throttle response; it comes equipped with a regulator and pump.
  • A special roller bearing on the large end of the conrod allows for 50:1 fuel/oil mixture.
O.S. originally designed compact carburetor expressly for gasoline engine and pump are installed.
Ignition Module
A compact IG-0 Ignition Module is included with the motor for perfect starts every time.
Power Box Muffler
Standard size, lightweight, Powerbox™ muffler

Product Specs

Oil Type & Content
2-cycle oil at 30:1 - 50:1 mix ratio
Product Length
4.2" (106.2mm) from pump to front bearing
Crankshaft Threads
Ignition Weight
3.35 oz (95 g)
Muffler Weight
6.28 oz (178 g)
Carb Type
Product Width
2.4" (61mm) at mounting tabs
Total Weight
32 oz (904 g)
Engine (Only) Weight
22.26 oz (631 g)
Muffler Type
2-piece aluminum
0.912 cu in (14.95 cc)
1.091" (27.7mm)
Crankshaft Type
Power Type
Plug Type
0.976 (24.8mm)
Product Height
4.3" (109mm) from crankcase bottom to top of cylinder head
Prop Range
13 x 8-11 - 15x8
RPM Range
2,000 - 15,000
Starter Type
Hand Held Starter


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