High Altitude Bomber
B-28 Dragon. Development of the high-altitude bomber began in 1939 based on the basic design of the B-25 Mitchell. The new aircraft, designated NA-63, was powered by two 2000 hp Pratt & Whitney R-2800 radial engines. with a single-fin vertical tail, a circular fuselage and a pressurized cockpit for five crew members. Its bomb bay could hold 1,814 kg of bombs, dorsal, ventral and tail turrets with coaxial 12.7 mm machine guns were remotely controlled from the cockpit, there were also three similar machine guns for course fire.
On November 15, 1939, USAAC ordered the construction of the first of two aircraft prototypes, which received the military designation XB-28 and the unofficial nickname Dragon. This aircraft (serial number 40-3056) was flown around on 24 April 1942. On tests, the aircraft showed high flight characteristics: at an altitude of 7620 m, it reached a speed of 599 km / h and could carry bomb loads over a distance of 3283 km.
|Wing span, m
|2 × PE Pratt & Whitney R-2800-27 Double Wasp, hp
||2 × 2,000
|Weight, kg: |
|Maximum speed, km/h
|Service ceiling, m
|Service range, km
|6 × 12.7mm machine guns, bomb load, kg