O.S. Engine

O.S. Engines is a leading manufacturer of single- and multi-cylinder model aircraft engines ranging from small two-stroke to "giant-scale" four-stroke radial engines. Japanese model engine manufacturer that produces very affordable and yet easy to use model engines which won acclaim for their performance and durability.

The OS Engine GT22 best fit models designed for 15cc 2-stroke or 20cc 4-stroke glow engines. Provides pilots with its reliability and durability, simple and inexpensive operation, easy adjustment, high efficiency and high performance. It creates more power and thus comes with the ability to turn larger diameter propellers than competing engines of this class, making it the first choice for pilots with the highest expectations.

An investment in O.S. gasoline power quickly pays for itself in fast starts, higher power and more flights from your fuel budget.

GT22 High performance, hand-crafted, quality inspected O.S. engine.
Uses beam mounting, unlike most other gasoline engines, for easy installation in planes designed for glow power.
Pitts style muffler has been reinforced at seams, bends and mounting bolt locations for maximum strength.
The IG-02 electronic ignition system handles 4-6 cell NiCd/NiMH or 2-cell LiPo/LiFe batteries.
Rear-mounted Walbro carburetor is custom-designed for the GT22 — a choke rod guide has also been integrated into the crankcase for effortless setup.
260 ml tank is sufficient for 11-12 minutes of aerobatic flying with a reserve
Comes with single prop locking nut.

The fuel tank and all fuel lines must be for gasoline (Tygon).

Standard accessories:
Spark Plug CM-6 (NGK)
WT1054 Walbro Carburetor
New IG-02 Electronic Ignition
E-5040 Silencer Assembly

Specifications:
Displacement: 22.12cc
Bore: 32.0mm
Stroke: 27.5mm
Output: 2.7ps / 2.66hp / 9000 rpm
Practical rpm range: 1800-9000 rpm
Weight: 762g (engine) / 133g (silencer) / 105g (ignition module)

O.S. Engine Non-Bubble Weight

Fuel clunk

O.S. Engine Cylinder Piston Assembly

for OS MAX 25SF, 25FX and 25LA engines

O.S. Engine Spare Parts - OS22805010

Connecting Rod for 25FX,21RF,SE

Use this spare part for radio controlled airplanes, helicopters and other RC model internal combustion engines.

O.S. Engine (NGK) Spark Plug CM-6 for O.S. Gasoline engines

Spark Plug CM-6

O.S. Engine Crankshaft

for OS MAX 25FX engines

O.S. Engine cold glow plug for aircraft and helicopter engines

Glow Plug No. 10

Cold glow plug for engines over 10 ccm

O.S. Engine Super Filter (Small)

Fuel clunk with filter

Dimensions:
ø16 mm x length 32 mm

O.S. Engine Super Filter (Large)

Fuel clunk with filter

Dimensions:
ø 20 mm x length 36.5 mm

O.S. Engine 892 Silencer Assembly

for OS MAX 25FX engines

OS Engine Head Gasket (0.1mm) for 105HZ

Spare Parts for O.S. Engine OS MAX
OS28704161

OS Engine "O" Ring (4BK/60J/20J/60P/40J) 2 pcs.

Spare Parts for O.S. Engine OS MAX
OS24981837

OS Engine Head Gasket (0.2mm) for 105HZ

Spare Parts for O.S. Engine OS MAX
OS28704160