| Liberty L-4 | |
|---|---|
| |
| Liberty L-4 aircraft engine | |
| Type | Piston aero engine |
| National origin | United States |
| Manufacturer | Hudson Motor Car Company |
| Designer | Jesse G. Vincent and Elbert J. Hall |
| First run | 1917 |
| Number built | 2 |
| Variants | Liberty L-6, Liberty L-8, Liberty L-12 |
The Liberty L-4B was an experimental water-cooled inline four-cylinder aircraft engine developed in the United States during World War I. The 102 hp (76 kW) engine was designed and manufactured by the Hudson Motor Car Company and was mainly intended for use in training airplanes. Only two examples of the L-4B were produced, since other types of engines were available and in production. While the engine was ground-tested, it is unknown if the L-4 was ever test-flown. The L-4 was created as part of a US aircraft engine development effort which also created the six-cylinder Liberty L-6, eight-cylinder Liberty L-8 and twelve-cylinder Liberty L-12.
Specifications
General characteristics
- Type: Four-cylinder inline piston engine
- Bore: 5 in. (127mm)
- Stroke: 7 in. (177.8mm)
- Displacement: 549.8 cuin (9.0 L)
Components
- Cooling system: Water-cooled
Performance
- Power output: 102 hp (76 kW)
See also
Related lists
References
- Neal, Robert J. (2009-01-05). Liberty Engine: A Technical & Operational History. Specialty Press. ISBN 978-1-58007-149-9.
- "Liberty L-4". National Museum of the United States Air Force™. Retrieved 2023-07-26.
This article incorporates text from Liberty L-4, a public domain work of the United States Government.
- Gunston, Bill (1986). World Encyclopedia of Aero Engines. Wellingborough: Patrick Stephens. p. 106.
| Liberty aircraft engines | |
|---|---|
| Piston engines | |
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