Bockscar. Army Air Force B-29. On 9 August 1945, Bockscar, piloted by the 393d Bombardment Squadron's commander, Major Charles W. Sweeney (1919-2004), dropped a Fat Man nuclear bomb with a blast yield equivalent to 21 kilotons of TNT over the city of Nagasaki. About 44% of the city was destroyed. 10” x 8” color photograph of the plane signed by eight individuals associated with the mission: Sweeney “Charles W Sweeney Aircraft Commander”, Fred J. Olivi (1922-2004) Co-pilot, “Lt Fred J. Olivi – Co-pilot, Charles Albury (1920-2009) “CD Albury – Pilot ‘Bockscar’Nagasaski”, Raymond G. Gallagher “Sgt. Ray Gallagher Asst. Flight Engineer”, Frederick D. Clayton “Fred Clayton Crew Chief”, Frederick L. Ashworth (1912-2005) “Frederick L Ashworth Weaponeer Crew Bockscar Nagasaki – 9 Aug ‘45”, Porter Richardson “T/Sgt. Porter Richardson 393rd Radar Cnt Line Chief Nose Art Painter” and Robert Haider “Bob Haider A & E Mechanic”.