• Sale-40%

  • 69.000 KD 115.000 KD

Be sure to also check accessories and optional parts...

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.
Notes from our tech department:
This is the OS Engines GT22 Gasoline Powered Engine with Muffler
and Rear Mounted Carburetor.


Beam mounting design allows engine to fit inside cowls that are
sized for 2-stroke .60-.91 and 4-stroke 1.20 glow engines
Custom designed rear mounted Walbro carburetor with choke rod guide
integrated into crankcase that minimizes set-up time
IG-02 electronic ignition handles 4-6 cell NiCd, NiMH or 2-cell LiPo
and LiFe batteries
Pitts style muffler has reinforced mounting bolt holes and webbing at
high stress points
Two year limited warranty through Hobby Services beginning at date of


GT22 Engine with Muffler, Electronic Ignition Module, CM-6 Spark Plug
Muffler Gasket, Muffler Bolts and Instruction Manual


2-cycle oil with a mix ratio of 50:1 if using Klotz model oil
(if using other brand, follow manufacturers mix ratio or if no
recommendation, mix at 30:1)
Ignition Battery: 4-6 cell NiCd, NiMH, or 2-cell LiPo
LiPo battery requires voltage regulator
Propeller: 16x8, 16x10, 17x6, 17x8, 15x10 for break-in
Gasoline safe fuel tubing and fuel filter


Displacement: 1.35 cu in (22 cc)
Bore: 1.26 (32mm)
Stroke: 1.08 (27.5mm)
Practical RPM Range: 1,800 - 9,000
Output: 2.66 hp 9,000 RPM
Engine: 26.86oz (761.6g)
Muffler: 4.68oz (132.6g)
Ignition Module: 3.7oz (105g)
Initial Needle Positions: High Speed Needle-two turns open
Low Speed Needle-one and a half turns open
Distance Between Mounting Hole Centers Same Side: 0.98 (25mm)
Distance Between Mounting Hole Centers Opposite Side: 2.2 (57mm)
Mounting Hole Diameter: 0.197 (5mm)
Length of Muffler Can: 3.9 (100mm)
Width at Mounting Tabs: 2.7 (70mm)
Width of Crankcase Below Mounting Tabs: 1.9 (49.4mm)
Height from Crankshaft Centertop of Cylinder Head: 3.7 (94mm)
Height from Crankshaft CenterMuffler Mounting Hole Centers: (48.4mm)
Length from Drive Hub to Carburetor: 5.5 (139.5mm)
Length from Drive Hub to Center of Crankcase: 2.7 (68.5mm)
Length from Center of Crankcase to Carburetor: 2.8 (71mm)
Crankshaft Size: 516-24 UNF-2A

jxs 101112

jxs 101112

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