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OS Engines 55AX ABL .55 Airplane Glow Engine with Muffler

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  • Detail

    Get .50 size power into your .40 size aircraft

    The 55AX is better than ever, with an improved carburetor and muffler. You get the same phenomenal power, with the convenience and safety of a rear angled needle valve on the carb and a squared off muffler for easier cowling installation. If you want .50 scale power that fits conveniently in .40 size planes, get the 55AX and get flying!
    • Comes with the E3071 muffler for quiet efficiency.
    • 40K carburetor has a diagonally placed needle valve so you don't need a remote needle valve.
    • Mounts directly into the bolt pattern for the 46AX.
    • Advanced Bimetallic Liner (ABL) uses two alloys to provide a durable layer between the brass liner and piston.
    • Recommended prop sizes: 12x7, 12x8, 13x6, 13x7.
    Muffler
    The large-chambered muffler reduces sound without reducing power.
    Carburetor
    The 40K carburetor includes a diagonally placed needle valve so there's no need for a remote needle valve.
    • Same mounting dimensions as the O.S. Max .46 AXII
    • Advanced Bi-Metallic Liner process uses a double layer of plating material rather than one thick layer.
    • Plating process is more consistent, resulting in a more precise fit between piston and sleeve for better compression and longer life.
    • Angular head design offers increased surface area for better cooling.
    • 40K Carburetor with diagonally placed needle valve eliminating remot needle valve placement
    • Two year limited warranty beginning at date of purchase

    Product Specs

    Bore
    0.91" (23mm)
    Crankshaft Threads
    1/4-28
    Crankshaft Type
    Threaded
    Cylinders
    Single
    Displacement
    0.545 cu in (8.93cc)
    Engine (Only) Weight
    0.89lbs (404g)
    Muffler Type
    2-piece aluminum
    Muffler Weight
    4.23 oz (120 g)
    Oil Type & Content
    At least 16% synthetic lubricant
    Plug Type
    O.S. #8
    Power Type
    Glow
    Product Height
    3.6" (91.1mm) crankcase botton to top of cylinder head
    Product Length
    3.4" (85.5mm) from back plate to front of drive hub
    Product Width
    2.4" (61mm) at mounting tabs
    Prop Range
    11x6 - 13x6
    RPM Range
    2,000 - 17,000
    Stroke
    0.85" (21.5mm)
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