This book documents the development and delivery of the Silverplate B-29 bomber, the remarkable airplane with capabilities that surpassed those of known enemy fighters of the time and was employed to release the first atomic bomb on Hiroshima in 1945. The basic history from conception to successful development is set forth in the early chapters, which discuss the then secret work of the 509th Composite Group. Subsequent chapters discuss the Los Alamos test program, Silverplate B-29 combat operations, the Air Force bases from which the aircraft operated, accidents associated with operations and details of the atomic bombs carried. Concluding chapters give special attention to the members of the 509th, who were responsible for dropping the bombs and whose efforts brought an end to World War II, provided the backbone of America's nuclear deterrent force in the years after the war, and opened the Atomic Age.