Lawrance J-1
| Lawrance Aero Engine Company | |
|---|---|
| Image does not exist |
|
| J-1 | |
| Production period: | since 1922 |
| Manufacturer: | Lawrance Aero Engine Company |
| Developing country: |
 United States
|
| Working principle: | Otto |
| Motor design: | Radial engine |
| Cylinder: | 9 |
| Drilling: | 114 mm |
| Hub: | 144 mm |
| Displacement: | 12900 cm 3 |
| Mixture preparation: | Carburetor |
| Engine charging: | no |
| Cooling system: | Air cooling |
| Power: | 150 kW |
| Dimensions: | 216 kg |
| Previous model: | L-1 |
| Successor: | none |
The Lawrance J-1 is an air-cooled nine-cylinder star engine developed by Charles Lanier Lawrance and used in US aircraft of the early 1920s.
development
During the First World War , the Lawrance Aero Engine Company in New York City built the Lawrance L-1 , a Y-engine with 60 hp (44 kW ), in addition to simple two-cylinder boxer engines for Penguin trainers .
After the end of the First World War, the engineers at Lawrance, in collaboration with the US Army and the US Navy, developed a nine-cylinder star engine from the L-1, the J-1 with 200 hp (147 kW). This was the best American air-cooled engine of its time and passed its fifty-hour test in 1922. The US Navy desperately needed lightweight, reliable engines for their carrier-based aircraft . To put pressure on Wright Aeronautical and other engine manufacturers, the Navy placed an order for 200 J-1 radial engines and stopped purchasing Wright Hispano water-cooled engines. Under pressure from the US Army and US Navy, Wright finally bought the Lawrence Company and produced its engines under its own name. The Wright Whirlwind - series still used crankcase , camshaft and crankshaft of J -1.
Applications
- Dayton-Wright XPS-1
- Naval Aircraft Factory N2N
- Naval Aircraft Factory TS-1
- Huff-Daland TA-2 , the prototype of a school aircraft
- Dayton-Wright TA-5 , prototype trainer aircraft
- Huff-Daland TA-6 , prototype training aircraft
- Huff-Daland HN-2 , Navy trainer aircraft
Issued copies
A copy is on display at the New England Air Museum in Windsor Locks , Connecticut .
Individual evidence
- ↑ a b c Michael John Taylor Haddrick: Jane's Fighting Aircraft of World War I . Random House Group Ltd, London 2001, ISBN 1-85170-347-0 , pp. 290 (English).
- ^ A b Herschel Smith: A History of Aircraft Piston Engines . Sunflower University Press, Manhattan, Kansas 1981, ISBN 0-89745-079-5 , pp. 255 ff . (English).