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Keystone B-5

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B-5
Keystone B-5A
Type Light bomber
Manufacturer Keystone
Primary user United States Army Air Corps
Number built 3 Y1B-5 + 27 B-5A
Developed from Keystone B-3

The Keystone B-5 was a light bomber made for the United States Army Air Corps in the early 1930s.

Design and development

The Keystone B-5 was originally designated LB-14, but the LB- "light bomber" designation was dropped in 1930. Three B-3A (LB-10A) were reengined with Wright R1750-3s and redesignated Y1B-5s. In 1930, twenty-seven B-3As were convereted to the B-5A design. They provided the backbone of the U.S. bomber force from then to 1934.

Operational history

The B-5A was the first line bomber of the United States Army Air Corps between 1930 and 1934. They remained in service until the early 1940s, serving primarily as observation aircraft.

Variants

LB-14
As LB-10 with 575hp (429kW) GR-1860 engines but delivered as the Y1B-5.
Y1B-5
Three pre-production aircraft redesignated from LB-14 before delivery.
B-5A
Production version of the Y1B-5, 27 built

Operators

Specifications (B-5A)

General characteristics

  • Crew: 5
  • Length: 48 ft 10 in (14.9 m)
  • Wingspan: 74 ft 8 in (22.8 m)
  • Height: 15 ft 9 in (4.8 m)
  • Wing area: 1,145 ft² (106.4 m²)
  • Empty weight: 7,705 lb (3,945 kg)
  • Loaded weight: 12,952 lb (5,875 kg)
  • Max takeoff weight: lb (kg)
  • Powerplant: 2× Wright R1750-3 radial engines, 525 hp (392 kW) each

Performance

Armament

  • Guns: 3× .30 (7.62 mm) Browning machineguns
  • Bombs: 2,500 lb (1,100 kg); 4,000 lb (1,800 kg) on short runs


External links

See also

Related development

Related lists

Template:USAF bomber aircraft


This article is licensed under the GNU Free Documentation License.
It uses material from the Wikipedia article "Keystone B-5".