| B-5 | |
|---|---|
 | |
| Keystone B-5A | |
| Role | Light bomber |
| Manufacturer | Keystone Aircraft |
| Primary user | United States Army Air Corps |
| Number built | 3 Y1B-5 27 B-5A |
| Developed from | Keystone B-3 |
The Keystone B-5 is a light bomber made by the Keystone Aircraft company for the United States Army Air Corps in the early 1930s. The B-5A was a Keystone B-3A with Wright Cyclone rather than Pratt & Whitney engines.
Three B-3A (LB-10A) were reengined with Wright R-1750-3 radial engines and were redesignated Y1B-5. The Army Air Corps changed the design of the last 27 LB-10As on order, replacing the Pratt & Whitney R-1690 radial engines with the Wright R-1750-3. The Pratt & Whitney-powered aircraft were designated B-3A, and the Wright-powered aircraft became B-5A. They provided the backbone of the U.S. bomber force from then to 1934.
B-5A were first line bombers of the United States for the period between 1930 and 1934. Afterwards, they remained in service primarily as observation aircraft until the early 1940s.
General characteristics
Performance
Armament
Related development
Related lists
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