Captain Theodore Van Kirk, NavigatorĪir Force captain Theodore 'Dutch' Van Kirk did not know the destructive force of the nuclear bomb before Hiroshima. The mission to drop the atomic bomb on Hiroshima, Japan (special mission 13) involved seven planes, but the one we remember was the Enola Gay. The group deployed to Tinian in 1945 with 15 B-29 bombers, flight crews, ground crews, and other personnel, a total of about 1770 men. Even those in the group only knew as much as they needed to know in order to perform their duties. The group was segregated from the rest of the military and trained in secret. Army Air Force to deliver and deploy the first atomic bombs during World War II. The 509th Composite Group was formed by the U.S. Almost all had something to say after the war. Some chose to keep a low profile and others spoke out about their place in history. On August 6, 1945, the B-29 bomber Enola Gay dropped an atomic bomb on the city of Hiroshima.