NA-21 Dragon

NA-21 Dragon The experimental NA-21 Dragon was North American's first venture into multiengine design. It was a high-altitude bomber armed with single .30-inch machine guns in each of five positions, including in a ball-type turret in the nose. The NA-21 could carry 10,000 pounds of bombs short distances or carry 2,200 pounds of bombs for 1,900 miles.

After a few small changes, the NA-21 was accepted for testing at Wright Field but orders did not follow. The Air Force bought the single NA-21 in 1939 and redesignated it the XB-21.

First flight: Dec. 22, 1936
Span: 95 feet
Length: 61 feet 9 inches
Height: 14 feet 9 inches
Gross weight: 27,253 pounds
Power plant: Two 1,200-hp Pratt & Whitney R-2180-1 Hornet engines with F-10 turbo-superchargers
Speed: 220 mph
Range: 1,960 miles
Crew: Six
Armament: Five .30-caliber machine guns, up to 10,000 pounds of bombs