Engines: Four Wright R-3350S of 2,200 hp. Each Top Speed :357 mph. Span:141 ft. 3 in. Range: 3,700 miles Length: 99 ft. 0 in. Ceiling:33,600 ft. Height:27 ft. 9 in. Designed as a replacement for the B-17 and B-24, a B-29 first flew in 1942. It was not used in Europe, for its long range made it better suited for attacking Japan from China and later from Saipan, Guam, and Tinian. The B-29 "Bockscar" on display at the USAF Museum, W-P AFB, Ohio, dropped the second atomic bomb (Aug.9, 1945) on Nagasaki ending WW ll.