B-29 Superfortress
First flight Sept. 21, 1942
Model number 345
Classification Bomber
Span 141 feet 3 inches
Length 99 feet
Gross weight 105,000 pounds (140,000 pounds postwar)
Top speed 365 mph
Cruising speed 220 mph
Range 5,830 miles
Ceiling 31,850 feet
Power Four 2,200-horsepower Wright Double Cyclone engines
Accommodation 10 crew
Armament 12 .50-caliber machine guns, 1 20 mm cannon, 20,000-pound bomb load
