BombersAmerican bomber prototype
North American XB-28

The North American XB-28 (NA-63) was an aircraft proposed by North American Aviation to fill a strong need in the United States Army Air Corps for a high-altitude medium bomber. It never entered production, with only two prototypes being built.
Summary from Wikipedia, photo via Wikimedia Commons, licensed under CC BY-SA.
- Manufacturer
- North American Aviation
- Category
- Bombers
- First flight
- 1942-04-26
Specifications
- Cruise speed
- 222 kt
- Max speed
- 323 kt
- Range
- 1,770 nm
- Service ceiling
- 34,800 ft
- Rate of climb
- 1,111 ft/min
- Max takeoff weight
- 39,135 lb
- Empty weight
- 25,575 lb
- Powerplant
- 2 × Pratt & Whitney R-2800-27 18 cyl. air-cooled radial turbosupercharged piston engines
- Engines
- 2
- Seats
- 5
- Length
- 56.3 ft
- Wingspan
- 72.5 ft
- Height
- 22 ft
- Number built
- 2
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.