Lawson L-4
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| L-4 | |
|---|---|
| Type | Three-engined biplane airliner |
| Manufacturer | Lawson Air Line Company |
| Maiden flight | 1924 |
| Primary user | Lawson Air Line Company |
| Number built | 1 |
The Lawson L-4 was a 1920s American unflown biplane airliner, designed and built by the Lawson Air Line Company of Milwaukee, Wisconsin.
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[edit] Design and development
In 1924 the Lawson Air Line Company had a need for an airliner to use on the night service between Chicago and New York. The L-4 was a three-engined biplane airliner which was fitted with sleeping berths, lavatory and unusually a shower unit. When the aircraft was preparing for its first flight the aircraft got stuck on soft ground, in an attempt to taxi the aircraft from the soft ground it was severely damaged. Before the aircraft could be repaired and flown the company folded.
[edit] Specifications (L-4)
General characteristics
- Length: 54 ft 2 in (16.51 m)
- Wingspan: 111 ft 5 in (33.96 m)
- Height: 17 ft 6 in (5.33 m)
- Wing area: 2,028 ft² (188.4 m²)
- Empty weight: 9,759 lb (4427 kg)
- Gross weight: 18,645 lb (8457 kg)
- Powerplant: 3 × Liberty L-12 V-12 piston engine, 420 hp (313 kW) each each
Performance
- Maximum speed: 110 (estimated) mph (177 (estimated) km/h)
[edit] References
- The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985). Orbis Publishing.
[edit] External links
[edit] See also
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