Boeing B-29 'Enola Gay'. Historical image of the Boeing B-20 'Enola Gay' on Tinian in the Marianas Islands, Pacific Ocean. This aircraft, piloted by Colonel Paul Tibbets, dropped the 'Little Boy' bomb over the Japanese city of Hiroshima at 8.16am local time, on 6th August 1945. Detonating 565 metres above the city centre, the bomb had an explosive energy equivalent to 12.5 kilotons (12,500 tons) of TNT. It is estimated that over 155,000 people died in Hiroshima; this figure includes radiation- related deaths within the first year. This bomb, and a second dropped on the city of Nagasaki, resulted in the end of World War Two.