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.75AX ABL 61A Carb E4040 Muffler

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.75AX ABL 61A Carb E4040 Muffler

O.S. Engines OSMG0575 Airplane Engine Nitro
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  • .75AX ABL 61A Carb E4040 Muffler

    This is the O.S. Max 75 AX ABL Aircraft Engine with Muffler.


    Same mounting dimensions as the O.S. Max .61FX
    Advanced Bi-Metallic Liner process uses a double layer of plating
    material rather than one thick layer. This helps the metal bond to
    the cylinder and makes the plating more durable. Also, the plating
    process is more consistent, resulting in a more precise fit between
    piston and sleeve for better compression and longer life.
    Power Box muffler design provides more volume for increased power in
    a very compact shape
    Angular head design offers increased surface area for better cooling
    Ball bearing-supported crankshaft
    61A carburetor with diagonally placed needle valve eliminating
    remote needle valve placement
    Two year limited warranty


    O.S. Max 75 AX ABL Aircraft Engine with E3010 muffler, carburetor,
    #8 glow plug, illustrated instruction manual


    Aircraft blend fuel containing 5%-20% Nitromethane with at least 18%


    Displacement: 0.75 cu in (12.3cc)
    Bore: 1.02" (25.8mm)
    Stroke: 0.93" (23.5mm)
    Practical RPM: 2,000-16,000 RPM
    Power Output: 2.4 PS, 2.37HP/15,000 RPM
    Weight: 20.39 onuces (578g) w/o muffler
    26.46 ounces (750g) w/ muffler
    Recommended Props: 14x6, 14x8, 15x7
    Crankshaft thread size: 5/16-24
    Distance from center of engine to drive hub: 2.62" (66.6mm)
    Distance between exhaust bolt mounting holes 42mm
    Height from crankcase bottom to top of cylinder head: 4.07" (103.5mm)
    Height/crankshaft center to top of cylinder head: 3.20" (81.5mm)
    Width including mounting tabs: 2.4" (61mm)
    Width not including mounting tabs: 1.67" (42.6mm)
    Width between mounting holes same side: .98 (25mm)
    Width between mounting holes opposite side: 2.04" (52mm)
    Diameter of muffler body: 1.92" (48.8mm)
    Angle of muffler in relation to engine: 4°
    Length from end of crankshaft to back of crankcase 5.09" (129.5mm)

    High Speed Needle: 1.5 - 2 turns out from fully closed
    Low Speed Needle: 2mm gap between the needle and spray bar at full
    throttle (looking down the neck of the carb)

  • O.S. Engines .75AX ABL 61A Carb E4040 Muffler Parts List (1 items)

  • O.S. Engines .75AX ABL 61A Carb E4040 Muffler Hop-Ups & Optional Accessories (0 items)

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