Lockheed XB-30
The Lockheed XB-30 (company model L-249) was the design submitted by Lockheed after the request by the United States Army Air Forces for a very heavy bomber, the same request that led to the Boeing B-29 Superfortress, the Douglas XB-31 and Consolidated B-32 Dominator. == Design and development == Around 1938, General Henry H. "Hap" Arnold, the head of the United States Army Air Corps, was growing alarmed at the possibility of war in Europe and in the Pacific.