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O.S.

O.S. FS56-A 4-Stroke Engine

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 INFORMATION
HP ITEM NUMBER:
705974
DESCRIPTION:
O.S. FS56-A 4-Stroke Engine
MFR. NUMBER:
OSMG0956

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O.S. FS56-A 4-Stroke Engine - Item No. 705974

MORE INFORMATION   ACCESSORY ITEMS

 

O.S. FS56-A 4-Stroke Engine

Ushering in a new era in O.S. 4-stroke technology: the 56FS-a. It's the first in the alpha series, with the latest advancements for boosting your plane's performance.
  • Mounts with no-mod ease in the same space as the 52FS.
  • In addition to less noise, the muffler features a multi-positional manifold with a rubber O-ring that helps prevent oil leakage.
  • A newly designed lubrication system eliminates the need for crankcase ventilation.
  • The 40NA carburetor is equipped with a venturi that reduces the chance of fuel leaking out onto the cowl, while also creating more positive air/fuel flow.
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Only $284.97
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More Information About the FS56-A 4-Stroke Engine
Improvements over the original FS series include;
  • Elimination of Crankcase venting-excess crankcase oil is now drawn into the Rocker Cover, injected back into the combustion chamber.
  • Stronger Connecting Rod, Wristpin and Valve assembly
  • Extended intake tube on Carburetor restrains the reverse flow of the air/fuel mixture
  • Decreased width Camshaft housing for less interference with sides of aircraft nose section
  • F-4040 muffler with adjustable offset and outlet direction for easier cowl installations
  • 40NA two needle Carburetor
SPECIFICATIONS
  • Displacement: 0.569 cu in (9.32 cc)
  • Bore: 0.945 in (24.0 mm)
  • Stroke: 0.811 in (20.6 mm)
  • Practical rpm range: 2,400-13,000
  • Output: 1.0 hp @ 10,000 rpm
  • Weight w/muffler: 16.26 oz (461 g)
  • Includes: 40NA carburetor, muffler
  • Recommended props: Sport & aerobatic; 13x6, 12x6-8; Scale: 13x6-7, 12x6-8





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