avia.wikisort.org - AeroplaneThe Martin XLB-4 was a 1920s proposal for a light bomber by the Glenn L. Martin Company.
1920s proposed American bomber
XLB-4 |
Role |
Medium bomber Type of aircraft |
Manufacturer |
Martin |
Status |
Paper project only |
Number built |
0 |
Design and development
The XLB-4 would have been a biplane bomber of all metal construction, powered by two Pratt & Whitney R-1690 Hornet radial engines. The United States Army Air Corps (USAAC) ordered a single prototype serialled 27-332, but the aircraft was cancelled because the USAAC leadership was lukewarm about experimenting with all-metal aircraft.[1][2]
Specifications (XLB-4 estimated)
General characteristics
- Crew: 5
- Length: 44 ft 8 in (13.61 m)
- Wingspan: 76 ft (23 m)
- Height: 16 ft 7 in (5.06 m)
- Wing area: 1,203.0 sq ft (111.76 m2)
- Empty weight: 5,891 lb (2,672 kg)
- Gross weight: 11,982 lb (5,435 kg)
- Powerplant: 2 × Pratt & Whitney R-1690 Hornet 9-cylinder air-cooled radial piston engines, 525 hp (391 kW) each
Performance
- Maximum speed: 69 mph (111 km/h, 60 kn)
- Wing loading: 9.98 lb/sq ft (48.7 kg/m2)
See also
Related development
Aircraft of comparable role, configuration, and era
Related lists
References
USAAS/USAAC/USAAF/USAF bomber designations, Army/Air Force and Tri-Service systems |
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Original sequences (1924–1930) | Light Bomber | |
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Medium Bomber | |
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Heavy Bomber | |
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Main sequence (1930–1962) | |
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Long-range Bomber (1935–1936) | |
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Tri-Service sequence (1962–current) | |
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Non-sequential | Redesignated A-series | |
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Fighter-bomber, in F-series | |
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Other | |
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На других языках
- [en] Martin XLB-4
[fr] Martin XLB-4
Le Martin XLB-4 est un bombardier léger biplan, entièrement en métal, développé dans les années 1920. Un prototype est commandé par l'USAAC, mais la commande est annulée avant le début de la construction.
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