Tinian Kokura Nagasaki Hiroshima Bockscar Fat Man
At 03:47 Tinian time (GMT+10), 02:47 Japanese time, on the morning of 9 August 1945, Bockscar, flown by Sweeney's crew, lifted off from Tinian island with the Fat Man, with Kokura as the primary target and Nagasaki the secondary target. The mission plan for the second attack was nearly identical to that of the Hiroshima mission, with two B-29s flying an hour ahead as weather scouts and two additional B-29s in Sweeney's flight for instrumentation and photographic support of the mission. Sweeney took off with his weapon already armed but with the electrical safety plugs still engaged.
