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If you prefer an opposed cylinder engine, then this one's for you. The F-23 puts out an amazing 50hp at only 6150 rpm and provides 42ft/lbs. of torque. All with a total weight of only 84 Lbs.. This engine can handle any part 103 ultralight and most single seat experimentals. Opposed pistons cancel out each others internal inertia forces resulting in an amazingly smooth running engine.
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Model: |
F-23 |
Carburation: |
Dual 34mm slide or optional diaphragm carbs or optional electronic fuel injection |
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Engine Type: |
Opposed - 2 cycle, two cylinder |
Fuel Pump: |
Optional auxiliary external pneumatic |
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Bore: |
72mm |
Lubrication: |
Fuel mixed with oil @ 50:1 or optional oil injection |
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Stroke: |
64mm |
Rotation: |
Counter clockwise, viewed from output end |
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Displacement: |
521cc |
Starter: |
12 volt electric, optional recoil |
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Compression: |
9.5:1 |
Cooling: |
Free air Cooled by prop blast |
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HP Output: |
50hp @ 6150rpm |
Weight: |
78lbs, including reduction unit, full exhaust, and electric start or71lbs with recoil start reduction unit and full exhaust |
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Torque: |
42ft.lbs @ 6150rpm |
Reduction Units: |
Multi V Belt drive - 1.8:1, 2.2:1 and 2.5:1 ratios available |
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Ignition: |
Dual CDI |
Direct Drive coupling also Available |
Reduces total weight by 10 lbs. |
Top view picture of F-23 engine.
Picture of F-23 installed in BeLite legal 103 Ultralight.
Pictures of F23 installed in Sadler Vampire. Front view
Picture of F-23 installed in Fisher Skylight.
Picture of F-23 installed in Fisher 303
Picture of F-23 installed in Moni Motorglider
F23-Moni with cowl and air guides off. With air guides installed
