Douglas YB-11
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The Douglas YB-11 was a bomber aircraft designed for the United States Army Air Corps. Although a prototype was built, it did not enter production.
In the early 1930s, the U.S. Army ordered the development of an amphibious observation plane, designated the Douglas YO-44, based on the U.S. Navy's Douglas XP3D seaplane. When the Army accepted the YO-44, it was redesignated YOA-5, 'observation amphibian model 5'. A version of the YOA-5 was converted to bomber duty and dubbed the YB-11. It was the only amphibian to carry a bomber designation.
[edit] Specifications (YB-11)
General characteristics
- Crew:
- Length: 69 ft 9 in (21.3 m)
- Wingspan: 89 ft 9 in (27.4 m)
- Height: 22 ft 0 in (6.7 m)
- Wing area: 1,101 ft² (102.3 m²)
- Empty weight: 14,038 lb (6,368 kg)
- Loaded weight: 20,000 lb (9,000 kg)
- Max takeoff weight: kg (lb)
- Powerplant: 2× Wright R-1820-45 "Cyclone" radials, 800 hp (600 kW) each
Performance
- Maximum speed: 169 mph (147 kt, 272 km/h)
- Cruise speed: 152 mph (132 kt, 245 km/h)
- Stall speed: 75 mph (65 kt, 120 km/h)
- Range: mi (nm, km)
- Service ceiling: 18,900 ft (5,760 m)
- Rate of climb: 770 ft/min (3.9 m/s)
- Wing loading: 18 lb/ft² (89 kg/m²)
- Power/mass: 0.080 hp/lb (130 W/kg)
Armament
- Guns: 3× .30 in (7.62 mm) machine guns
[edit] External links
[edit] Related content
Designation sequence
Related lists
- List of bomber aircraft
- List of military aircraft of the United States
- List of seaplanes and flying boats
Lists relating to aviation
