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   Engines Engines - Airplanes 2 Stroke Engine Nitro O.S. .91 FX Ringed w/Muffler Airplane Engine OS19021
SKU:  OS91FX
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O.S. .91 FX Ringed w/Muffler Airplane Engine OS19021
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Added:2006/11/15
Updated:2006/12/24
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  Tags: O.S.  .91  FX  Ringed  w  Muffler  Airplane  Engine  OS19021 

Features:
Sharing exactly the same mounting pattern as the 61FX, the 91FX offers 47% more power with almost no weight penalty!

Just like all FX series engines the 91FX has the rear needle valve assembly with the addition of a variable fuel inlet location in addition to the adjustable main needle orientation. To ease hand starting a ringed piston setup is emplyed.
Specifications:
Manufacturer code: OS19021
Displacement: 14.95cc (0.912 cu in)
RPM range: 2,000 - 16,000
Bore: 27.7mm (1.090 in)
Stroke: 24.8mm (0.976 in)
Compression Ratio: 10.1 : 1
Weight: 550g (19.42oz) ( without muffler )
Horsepower: 2.8 BHP at 15,000 RPM
Props: 13x8 or 13x9 prop
Includes/Requires:
INCLUDES:
1 x O.S. Max-91FX Ring Airplane Engine with 60F carb.
1 x #8 glow plug.
1 x muffler with 4mm x 44mm socket head cap screws.
1 x instruction book
1 x decal sheet
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