The "Memphis Belle" seen in this film, a Boeing B-17F (serial no.41-24485), was moved to the National Museum of the U.S. Air Force at Wright-Patterson Air Force Base, Dayton, Ohio in October, 2005 to undergo a multi-year restoration process. As of October 2015, it is still undergoing that process which is scheduled to last another three years, after which the aircraft will be placed on display for the public.
Pilot Robert Morgan named the aircraft after his girlfriend at the time, Margaret Polk, of Memphis, Tenn. Morgan chose the nose artwork from a 1941 illustration in Esquire magazine by famous pin-up artist George Petty. She is wearing a blue outfit on the port (left) side of the aircraft and a red one on the starboard (right) side.
The historic B-17F known as the "Memphis Belle" has now been fully restored and put on display at the National Museum of the United States Air Force on Thursday, May 17, 2018. It is raised up and supported on stilts to give it the impression of flying.
While the film purportedly chronicles the first American heavy bomber to complete 25 missions in WWII, in truth the first U.S. bomber to complete 25 missions was the B-24 Liberator nicknamed "Hot Stuff." It completed its 25th mission on February 7, 1943. The first B-17 to complete 25 missions was "Delta Rebel II" on May 1, 1943. "Memphis Belle" completed its 25th mission on May 19, 1943, nearly 3-1/2 months after "Hot Stuff."
At the very beginning of the scene where the King and Queen are shown driving towards the waiting crew there is a British Horsa glider in the background. The Pilot of the Horsa was Sgt Brian Vincent accompanied by, S/Sgt Bert Harget. They had been forced to make an emergency landing during a cross country training exercise when the tug developed an engine fault. They were made very welcome by the Americans and their Glider was placed at the end of the line of "Forts". The details are still there in Bert's Flying Log.