Welch O-2
The Welch O-2 is a light two-cylinder engine developed for the Welch OW-7M series of aircraft.[1]
| O-2 | |
|---|---|
| Type | Horizontally Opposed Piston Engine |
| National origin | United States |
| Manufacturer | Orin Welch Aircraft Company |
| Designed by | Orin Moore Welch |
| First run | 1931 |
| Major applications | Welch OW-7M |
| Number built | 7 |
Specifications (O-2)
General characteristics
- Type: air-cooled 2-cylinder horizontally opposed aircraft piston engine
- Bore: 4.5 in
- Stroke: 4.25 in
- Displacement: 135 in³
- Dry weight: 115 lb
Components
- Oil system: dry sump
- Cooling system: Air-cooled
Performance
- Power output: 41hp at 2,300 rpm
- Compression ratio: 5.2:1
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References
- Jerry Bates (July 1998). "The Welch Monoplane". Skyways.
External links
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