O.S. 140RX 19221 Ringed w/Pump
O.S. 140RX Ringed w/Pump OSMG0678
It conforms to the new rules for powerplants.
Features
-
O.S. 140RX Ringed w/Pump OSMG0678
-
Rear-mounted needle valve (attached to a bracket on the backplate)
-
2-needle pump carb
-
Integrated fuel pump (for continuous fuel flow during aerobatics)
-
One-piece crankcase
-
Designed to get the max power at low RPM (makes the engine quieter)
-
Extra cooling fins (helps dissipate heat)
-
Ringed piston
-
Rear exhaust
-
Twin ball bearing-supported crankshaft
Specifications
-
Displacement: 1.40 cu. in.
-
Bore: 1.26" (32mm)
-
Stroke: 1.13" (28.6mm)
-
Practical RPM Range: 1,800 - 10,000
-
Max Power: 3.5 BHP at 9,000 RPM
-
Weight (WITHOUT ANY EXHAUST): 29.3oz (840g)
-
Suggested Prop Sizes: 15x14, 16x14
-
Overall height: 4.65" (118mm)
-
Overall length (backplate to front of drive washer): 4.6" (117mm)
-
Overall width: 2.76" (70mm)
-
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.)
-
Crankshaft thread size: 5/16-24
Package Contents
-
One set of instructions, O.S. poster, and decal
-
One #A5 Glow Plug (OSMG2693) Heavy Duty Drive Washer
-
One prop nut w/locknut and spinner mount
-
One additional needle (with less taper)
-
One Heavy duty drive washer
Requirements
-
Header (exhaust adapter) for a tuned pipe (OSMG2727)
-
Tuned pipe (tuned silencer - OSMG2945)
-
2-stroke fuel
- Item #: OSMG0678
