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  • OS Engines FSa-56II Airplane Engine with F-4040 Silencer
  • OS Engines FSa-56II Airplane Engine with F-4040 Silencer
  • OS Engines FSa-56II Airplane Engine with F-4040 Silencer
  • OS Engines FSa-56II Airplane Engine with F-4040 Silencer
  • OS Engines FSa-56II Airplane Engine with F-4040 Silencer
  • OS Engines FSa-56II Airplane Engine with F-4040 Silencer

OS Engines FSa-56II Airplane Engine with F-4040 Silencer

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  • Detail

    Give your 40-size plane the FSa power advantage!

    Mount the FSa-56II in your model, and see the difference advanced O.S. 4-stroke technology makes! Those benefits include a higher performance ceiling for sport flyers and more realistic flight for scale pilots. Plus, you’ll also enjoy rich, deep sound that will enhance your flying experience.
    • The popular FS56-a now features upgrades that make it even better than before!
    • Blow-by oil exits through the breather nipple on the back plate, for more stable operation.
    • Black rocker covers gives this engine a more impressive appearance.
    • The F-4040 silencer can be positioned to achieve the ideal fit.
    • Mounts with no-mod ease in the same space as the FS-56a.

    Product Specs

    Bore
    0.945" (24mm)
    Crankshaft Threads
    UNF1/4-28
    Crankshaft Type
    Threaded
    Cylinders
    Single
    Displacement
    0.569 cu in (9.32 cc)
    Muffler Type
    2-piece aluminum
    Muffler Weight
    1.48 oz (42 g)
    Plug Type
    F
    Power Type
    Glow
    Product Height
    3.3" (84mm) bottom of mounting tab to top of rocker cover
    Product Length
    5.2" (131.3mm) from carb to front of drive hub
    Product Width
    1.7" (44mm) between mounting hole centers
    Prop Range
    12x6-8 - 13x6-7
    RPM Range
    2,400 - 13,000
    Stroke
    0.81" (20.6mm)
    Total Weight
    16.3 oz (461 g)
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