Originally Posted by p51:
Unlike the "Little Boy" used on Hiroshima, the case for this bomb (designated F31, along with several backups for various reasons) was flown from Kirtland AAF to Tinian Island where it was armed and then dropped by an B-29 ironically named, "Bockscar."
The Bockscar is in the Air Force Museum at Wright-Patterson AFB, Dayton, OH (the Enola Gay is at the Smithsonian). The aircraft was assigned to aircraft commander Capt. Frederick Bock and his crew; the name was a pun on Bock's name, of course.