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120AX Ring 70D Carb E5020 Muffler

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120AX Ring 70D Carb E5020 Muffler

O.S. Engines OSMG0650 Airplane Engine Nitro
In Stock
$479.99

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  • 120AX Ring 70D Carb E5020 Muffler

    This is the O.S. Max Two-Stroke 1.20AX Ringed Engine with Muffler.

    Features

    Model Application: Ideal for 3D, Precision and Sport flying
    Mounting Application: Mounts in same space as the .91FX (actual
    mounting dimensions vary slightly, see SPECS)
    Internal Construction: Steel piston ring and liner, aluminum piston
    Muffler: E-5020 "Power Box" with extension and 90° adapters
    Carburetor: 70D with rearward angled needle valve for safety
    Glowplug: O.S. #8 supplied with engine, A5 (OSMG2693) will also work
    Warranty: Two-year limited

    Includes

    O.S. Max Two-Stroke 1.20AX Ringed Engine with E-5020 Power Box
    Muffler, #8 glow plug, muffler adapter, prop washer and lock nut,
    needle valve extension cable,instruction manual and decal sheet,
    two muffler screws, two muffler extension bolts, two long muffler
    bolts.

    Requires

    Fuel: Two-Stroke with 18% lubricant and 5-20% nitromethane
    Propeller: 15x10-12 or 16x8-10
    Field Equipment: Glow starter, fuel filter, fuel pump, fuel tubing

    Specifications

    Displacement: 1.218 cu in (19.96cc)
    Bore: 1.197" (30.4mm)
    Stroke: 1.083" (27.5mm)
    Practical RPM: 1,800 - 9,500 RPM
    Power Output: 3.1 PS, 3.06HP/9000 RPM
    Weight of engine: 29.0oz (823g) with muffler
    Weight of muffler: 7.074oz (219.2g) with 90° adapter installed
    Weight of muffler: 7.907oz (245g) with extension installed
    Crankshaft thread size: 5/16-24
    Distance Between Mounting Holes Same Side: 0.98" (25mm)
    Distance Between Mounting Holes Opposite Side: 2.3" (58mm)
    Distance Center of Crankcase to End of Crankshaft: 4.3" (109.5mm)
    Distance Center of Crankcase to Drive Hub: 2.7" (69.8mm)
    Width Between Mounting Tabs: 2.6" (67mm)
    Width of Crankcase Below Mounting Tabs: 1.8" (46.5)
    Length from Backplate to End of Crankshaft: 5.5" (139.9mm)
    Length from Backplate to Drive Hub: 3.9" (100.2mm)
    Height/Bottom of Crankcase to Top of Cylinder Head: 4.3" (109.2mm)
    Height/Bottom of Mounting Tabs/Top of Cylinder Head: 3.4" (85.7mm)
    Distance center to center of muffler mounting holes: 48mm (1.89")

    Needle Settings: High Speed: 2 - 2.5 turns out from fully closed
    Low Speed: 3/4 turn out from fully closed with the
    throttle fully closed

    Comments

    For version without muffler, order OSMG0651. The version without the
    muffler does not include the muffler extension or the 90° adapter.
    At this time one would not be able to use the muffler extension and
    90° adapter at the same time. The long muffler bolts are too long.

  • O.S. Engines 120AX Ring 70D Carb E5020 Muffler Parts List (0 items)

  • O.S. Engines 120AX Ring 70D Carb E5020 Muffler Hop-Ups & Optional Accessories (2 items)

    • O.S. Engines OSMG2691 Glow Plug
      In Stock
      $9.99

      The O.S. #8 glow plug is the most widely used O.S. glow plug. Recommended for most current O.S. (and other brands of) 2-stroke … Read More

    • O.S. Engines OSMG2693 Glow Plug
      In Stock
      $9.99

      This is the #10 (A5) Glow Plug from O.S. Engines. Features Medium-cold heat range plug that is ideal for aircraft glow engines . … Read More

      This product may take one additional day to ship (and may delay rest of order).
  • Manuals and Support

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