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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 thick 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, 2¼" (57mm) section of tubing for remote needle, two
3mm x 35mm cap head muffler screws, warranty sheet, decal sheet,
and illustrated instruction manual
Requires:
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.
Specs:
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" (61mm)
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" (50.8mm)
Width not including mounting ears: 1.4" (35.6mm)
Width between mounting holes same side: .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°
NEEDLE SETTINGS: High Speed Needle: 1½ to 2 turns Out from closed position,
per page 18 of manual
Low Speed Needle (aka: Mixture Control Valve): Close the
throttle rotor gradually from the fully opened position
until it is just fully closed. (Do not turn further.) Then
screw in the Mixture Control Screw until it stops. Now
unscrew the Mixture Control Screw approx. 3/4 turn. This is
the basic position, per page 23 of manual
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