O.S. 25AX ABL 12670 21K E3080 OSMG0527
This is the O.S. .25AX ABL Model Airplane Engine with E-3080 Muffler.
Ideally suited to a variety of R/C aircraft including trainer, sport types.
Features
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O.S. 25AX ABL 12670 21K E3080 OSMG0527
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Same mounting dimensions as
previous O.S. .25 size engines
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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.
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Newly designed E-3080 Power
Box muffler generates mild and pleasant sound and is constructed with an
O-ring between the front rear body to prevent oil leaking and is fully
positionable
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21L carburetor with needle
valve angled toward rear of engine for safer adjustments
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Ball bearing-supported
crankshaft
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Two-year limited warranty
Specifications
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Displacement: 0.248 cu in
(4.07cc)
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Bore: 0.709" (18mm)
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Stroke: 0.630" (16.0mm)
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Practical RPM: 2,500-17,000
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Output: 0.8 ps @ 15,000 RPM
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Weight: 12.6oz (357g) with
muffler
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Recommended Propellers: 9x5,
9x6, 9.5x5, 10x5
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Crankshaft Size: 1/4-28
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Distance from center of engine
to drive hub: 2.1" (53mm)
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Distance from center of engine
to end of crankshaft: 3.1" (77mm)
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Distance/crankshaft center to
muffler exhaust outlet:
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Height from crankcase bottom
to top of cylinder head:
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Height/mounting tab to top of
cylinder head:
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Width including mounting tabs:
1.8" (45mm)
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Crankcase width below mounting
tabs: 1.2" (30.6mm)
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Width between mounting holes
same side: 0.59" (15mm)
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Width between mounting holes
opposite side: 1.5" (38mm)
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Diameter of muffler body: 1.2"
(32mm)
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Needle Settings: High Speed: 2
turns out from fully closed
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Low Speed: Flush with carb
body then 1/2 turn in
Package Contents
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One O.S. .25AX ABL BB model airplane engine with muffler, #8 glow
plug, two 3x28mm cap head muffler screws, needle valve extension
cable, warranty sheet, decal sheet and illustrated instruction
manual
Requirements
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Radio: 4 channel minimum
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Servos: 4 micro (digital
servos recommended for best performance)
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12" (305mm) Servo Extensions:
Two for aileron servos
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6" (152mm) Servo Extension:
One for ESC
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6" (152mm) Dual Servo
Extension: One for aileron servos
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Motor: Brushless outrunner,
Great Planes RimFire .32 (42-50-800) recommended
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ESC: 45A brushless if using
recommended motor
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Propeller: 12x6E if using
recommended motor
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Battery: 2100mAh 14.8V Lithium
Polymer
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Charger: LiPo compatible with
cell balancer or separate cell balancer if charger is not so equipped
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Building and field equipment
Comments
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