| Features
O.S. 140RX Ringed w/Pump OSMG0678
It conforms to the new rules for
powerplants.
 Features
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O.S. 140RX Ringed w/Pump
OSMG0678
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Rear-mounted needle valve
(attached to a bracket on the backplate)
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2-needle pump carb
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Integrated fuel pump (for
continuous fuel flow during aerobatics)
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One-piece crankcase
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Designed to get the max power
at low RPM (makes the engine quieter)
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Extra cooling fins (helps
dissipate heat)
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Ringed piston
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Rear exhaust
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Twin ball bearing-supported
crankshaft
Specifications
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Displacement: 1.40 cu. in.
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Bore: 1.26" (32mm)
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Stroke: 1.13" (28.6mm)
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Practical RPM Range: 1,800 -
10,000
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Max Power: 3.5 BHP at 9,000
RPM
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Weight (WITHOUT ANY EXHAUST):
29.3oz (840g)
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Suggested Prop Sizes: 15x14,
16x14
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Overall height: 4.65" (118mm)
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Overall length (backplate to
front of drive washer): 4.6" (117mm)
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Overall width: 2.76" (70mm)
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Width of crankcase only (for
engine mount): 1.91" (48.4")(this is the same mounting dimensions as the
1.20 Surpass II with pump.)
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Crankshaft thread size:
5/16-24
Package Contents
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One set of instructions, O.S.
poster, and decal
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One #A5 Glow Plug (OSMG2693)
Heavy Duty Drive Washer
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One prop nut w/locknut and
spinner mount
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One additional needle (with
less taper)
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One Heavy duty drive washer
Requirements |
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