The 509th departed
for Tinian, Marianna Islands, in late spring and began flying combat
missions, normally one aircraft dropping a "pumpkin" filled with high
explosives, but on 20 July an eleven aircraft mission was flown over
Japan, each aircraft dropping one bomb.
test of the "Fat Man," called "Trinity Test," took place on 16 July
at Alamogordo Army Air Field, New Mexico. President Harry S. Truman
warned the Japanese that a bomb of extraordinary power would be used,
but the warning was ignored. Colonel Tibbets took off in the "Enola
Gay" at 0245 on the morning of 6 August 1945, and Little Boy was dropped
at 0915. Colonel Tibbetts immediately executed a diving 155 degree turn
to avoid blast and at 0916 the bomb exploded over Hiroshima, Japan.
Three days later the "Fat Man" was dropped on Nagasaki. The two bombs
killed and injured thousands of people. Japan surrendered on 14 August
Air Base was transferred to the Ogden Air Technical Service Command
(Ogden Air Logistics Center) on 31 December 1945. A detachment of the
Special Weapons Branch, Wright Field, Ohio, had arrived at Wendover
in October 1944 with the mission of evaluating captured and experimental
rocket systems. The missiles were of three types: the first included
power-driven bombs such as the German V-1 "buzz bomb;" the second were
glide bombs equipped with wings and gyro-stabilizers, which could be
controlled by radio or other means. The third consisted of conventional
bombs which could be controlled by the launching aircraft. Numerous
tests were conducted, including the JB-2, a copy of the German V-1.