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North American XB-28

Twin-engined high-altitude bomber with pressurised cockpits. The XB-28 was very advanced, and much of its technology was used in the B-29. But there was little operational need for it, so it did not enter production.

General characteristics
Primary function	High-altitude bomber
Contractor	North American Aviation Incorporated
Power plant	Two 18-cylinder two-row radial Pratt&Whitney R-2800 "Double Wasp" engines
Thrust	2,000 HP		1,491 kW
Wingspan	72.6 ft		22.14 m
Length	56.4 ft		17.20 m
Height	14 ft		4.27 m
Wingarea	675.87 sq ft		62.79 sq m
Weight	empty	25,574 lb	11,600 kg
	max.	37,200 lb	16,874 kg
Speed	max.	372 mph	599 km/h
	cruising	255 mph	410 km/h
Initial climb rate	33.3 ft/s		10,16 m/s
Ceiling	34,610 ft		10,546 m
Range	2,040 miles		3,282 km
Armament	Six 12.7mm machine guns, up to 1,814 kg bombs
Crew	Five (pilot, copilot, bombardier/navigator, gunner/radiotelegraphist, gunner)
Date deployed	1942
Number built	2 prototypes

Jirka Wagner (If you find some photo send it to me please)