While Tibbets and Sweeney will be linked forever in history, the two pilots first met at what was then known as Eglin Field in September 1943. Japan surrendered six days later, ending World War II. When Japan did not surrender, Sweeney and his crew on the B-29 “Bockscar” dropped a second bomb on the city of Nagasaki. 6, 1945, Tibbets led the crew of the B-29 “Enola Gay” as it dropped an atomic bomb on Hiroshima, Japan. EGLIN AFB - Seventy years ago this week, pilots Paul Tibbets and Charles Sweeney helped change the course of history.