OS Engines FS120S III Four Stroke Aircraft Engine, 1.20 Size, with E5040 Silencer
The FS-120SⅢ is the latest mid-range model in the well-established FS-120S series of 20cc four-stroke engines. This series extends from the standard suction-feed FS-120S-E to the unique ultra-high performance FS-120S-SP, the world's only production model engine to be equipped with a genuine crankshaft-driven supercharger.
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Features
- E5040 Silencer included
- 4-stroke engine with pump
- Front and rear bearings sealed and greased internally to prevent corrosion.
- Cubic capacity of 19.70 cc.
- Recommended use of type F spark plugs.
- With extension cord for needle adjustment included.
- With the new lubrication system, it is not necessary the oil discharge tube of the carter
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Product Information
The FS-120S Ⅲ is fitted with the new O.S. PD-07 diaphragm type fuel pump and matching Type 70N carburettor incorporating a built-in pressure regulator. These features ensure that fuel/air mixture strength is maintained at a constant level through maneuvers, for consistent performance and reliable throttle response. In the interests of improved durability, certain ferrous parts that are particularly susceptible to corrosion in four-stroke engines, have a corrosion-resistant plating and, for the same reason, a special grease-packed twin-sealed rear ball-bearing is used. To maintain the four-stroke engine's reduced noise levels, the FS-120 Ⅲ is supplied with an O.S. E5040 silencer (muffler) of substantially enlarged volume, as standard equipment.
Specs
- Displacement
- 19.70 cc
- Piston diameter
- 30.40 mm
- Stroke
- 27.50 mm
- RPM range
- 2,000 - 12,000
- Power
- 2.1 hp at 12,000 RPM
- Complete weight with exhaust
- 920 g
- Recommended propellers
- 14x9, 14x10 , 14x11, 15x8, 15x9, 15x10, 16x6
Product Manuals
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