Military aircraft
Douglas Y1B-7

The Douglas Y1B-7 was a 1930s American bomber aircraft. It was the first US monoplane given the B- 'bomber' designation. The monoplane was more practical and less expensive than the biplane, and the United States Army Air Corps chose to experiment with monoplanes for this reason. At the time the XB-7 was ordered, it was being tested by Douglas Aircraft as an observational plane.
Summary from Wikipedia, photo via Wikimedia Commons, licensed under CC BY-SA.
- Manufacturer
- Douglas
- First flight
- 1931-01-01
Specifications
- Cruise speed
- 137 kt
- Max speed
- 158 kt
- Range
- 357 nm
- Service ceiling
- 20,400 ft
- Rate of climb
- 1,150 ft/min
- Max takeoff weight
- 11,177 lb
- Empty weight
- 5,519 lb
- Fuel capacity
- 150 US gal
- Powerplant
- 2 × Curtiss V-1570-53 Conqueror
- Engines
- 2
- Seats
- 4
- Length
- 46 ft
- Wingspan
- 65 ft
- Height
- 12 ft
- Number built
- 14
Specifications are approximate and may vary by variant. Compiled from Wikipedia (CC BY-SA).
Reference and training only. Specifications vary by variant — consult the manufacturer and the official documents.