O.S. 46 AX

This is the O.S. Max .46AX ABL BB Model Airplane Engine with Muffler.
Ideally suited to a variety of R/C aircraft including trainer, sports aerobatic, and scale types.

Redesigned remote needle holder is separate bracket, not part of backplate Advanced Bi-Metallic Liner. This process uses a double layer of
plating material rather than one thicker layer. This helps the metal to bond to the cylinder and is more durable. Also, the plating process is more consistent, resulting in a more precise fit between piston and sleeve for better compression, longer life. Side exhaust Newly designed sport muffler with squared-off shape 40G carburetor Ball bearing-supported crankshaft
Two-year limited warranty

One O.S. Max .46AX ABL BB model airplane engine with muffler, A3 glow plug, 2-1/4" (57mm) section of tubing for remote needle, two 3mm x 35mm cap head muffler screws, warranty sheet, decal sheet, and illustrated instruction manual

Fuel containing 5%-20% nitromethane with at least 16% lubricant Most of the fuels we carry meet or exceed the lubricant content required for optimum performance and maximum engine life. In the past, the conventional lubricant content used in fuel was 18%. But with new advanced technologies, fuels like Red Alert and O'Donnell for example, have a better quality of lubricants even though the percentages of lubricant content are lower. These high-tech lubricants provide exceptional cooling and protection.

Displacement: 0.455 cu in (7.45cc)
Bore: 0.866" (22mm)
Stroke: 0.772" (19.6mm)
Practical RPM: 2000-17000
Power Output: 1.65ps/16000 rpm
Weight: 13.2oz (375g) without muffler
Weight: 17.2oz (489g) with muffler
Recommended Propellers: 10.5x6, 11x6-8, 12x6-7, use 10x6 for break-in
Crankshaft Size: 1/4-28
Distance from remote needle to end of crankshaft: 4.7" (119.4mm)
Distance from center of engine to drive hub: 2.4" (60.4mm)
Distance from center of engine to end of crankshaft: 3.4" (87.6mm)
Distance/crankshaft center to muffler exhaust outlet: 3.9" (100.5mm)
Height from crankcase bottom to top of cylinder head: 3.3" (85.2mm)
Height/crankshaft center to top of cylinder head: 2.6" (67.4mm)
Width including mounting ears: 2" (51mm)
Width not including mounting ears: 1.4" (35mm)
Width between mounting holes same side: 0.69" (17.5mm)
Width between mounting holes opposite side: 1.7" (44mm)
Diameter of muffler body: 1.5" (38.1mm)
Angle of muffler in relation to engine: 4°

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