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OS Engines 120AX Ringed 1.20 Airplane Glow Engine without Muffler

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    Perfect for 3D, precision and sport flying!

    Admit it: if you could ratchet up horsepower without having to increase the mounting space, you’d probably jump at the chance. Well, here it is. The 120AX boasts 25% more displacement than a .91 (think of the bigger props you can swing!) — and bolts into the same space, with almost no extra weight. Here’s a golden opportunity to boost your airplane's flying capabilities — with almost no modification!
    • Model Application: Ideal for 3D, Precision and Sport flying
    • Mounting Application: Mounts in same space as the .91FX
    • Construction: Steel piston ring and liner, aluminum piston
    • Carburetor: 70D with rearward angled needle valve for safety
    • Glowplug: O.S. #8 supplied with engine, A5 (OSMG2693) will also work

    Product Specs

    Bore
    1.197" (30.4mm)
    Crankshaft Threads
    UNF5/16-24
    Crankshaft Type
    Threaded
    Cylinder Type
    Steel liner and piston
    Cylinders
    Single
    Displacement
    1.218 cu in (19.96cc)
    Engine (Only) Weight
    20.88 oz (647 g)
    Plug Type
    O.S. #8
    Power Type
    Glow
    Product Height
    4.3" (109.2mm) from bottom of crankcast to top of cylinder head
    Product Length
    3.9" (100.2mm)
    Product Width
    2.6" (67mm) at mounting tabs
    Prop Range
    15x10-12, 16x8-10
    RPM Range
    1,800 - 9,500 RPM
    Starter Type
    Hand Held Starter
    Stroke
    1.083" (27.5mm)
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