XB-15
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Boeing XB-15 35-277 16 November 1937
Boeing XB-15 35-277 2
Boeing XB-15 code BB89 of the 2nd Bombardment Group
Boeing XB-15 with Boeing P-26
Bomber XB-15 engines cowlings, 28 April 1937
Heavy bomber XB-15 1937 2
Heavy Bomber XB-15 in flight
Heavy Bomber XB-15 landing gear
XB-15 parked on an airstrip
XB-15 1938
XB-15 at Felts Field, Spokane, 11 MAy 1939
XB-15 BB89 of the 2nd Bombardment Group
XB-15 Boeing factory 1937
XB-15 Cleveland in 1937
XB-15 front
XB-15 had been camouflaged with Olive Drab, Dark Green and Light Blue
XB-15 in flight over Lake Washington
XB-15 in test flight 2
XB-15 of 49th Bomb Squadron at Selfridge Field 1939
XB-15 of the 41st Reconnaissance Squadron, 1941
XB-15 tail
XB-15 tail 2
XC-105 1943/1944
The Boeing XB-15 (Model 294, XBLR-1, XC-105) “hemisphere defender” was designed in 1934 as a test bed for the USAAC. Bomber made its maiden flight on IS October 1937. Serial: 35-277 Boeing c/n: 1964 Specifications :
| crew | 10 |
| Length | 26,7m (87ft 7in) |
| Span | 45,5 m (149ft) |
| Height | 5,5 m (18ft 1in) |
| Wing area | 258 m2 (2,780 sq ft) |
| Empty weight | 29,484kg (65,000 lb) |
| Loaded weight | 31,298 kg (69,000 lb) |
| Max. take-off weight | 34,927 kg (77,000 lb) |
| Powerplant | Pratt & Whitney R-1830-11 Twin Wasp, 14-cylinder, air cooled, radial engines, 850hp (640kW), 1000 hp for take-off |
| Max speed | 320 km/h (200 mph) |
| Cruise speed | 245 km/h (152 mph) at 1828 m |
| Combat radius | 5500 km (3,400 miles) |
| Service ceiling | 5760 m (18900 ft) |
| Rate of climb | 3,4 m/s (670 ft/min) |
| Armament | 3 x 7,62 mm (0.30in), 3 x 12,7 mm (0.50in), 5400 kg (12,000 lb) bombs |
- Peter M. Bowers - Boeing Aircraft since 1916, Putnam Aviation Series 1989
- Bill Yenne - The Story of the Boeing Company, Updated Edition
- Lloyd S. Jones: U.S. Bombers
- Kev Darling: American X & Y Planes, Volume 1 – Experimental Aircraft to 1945, Crowood 2010
- International Air Power Review Volume 5, AIRtime Publishing