Trivia

First movie to feature an airplane-flying-through-a-hangar stunt, performed by stunt pilot Paul Mantz.

At one point, the mechanic character Slim (played by 'Slim' Summerville) is asked to go outside and check the weather. "All quiet on the Western Front", he replies. Summerville played a German soldier in the recent movie of the same name - making this a likely in-joke.

At the time of the film's production, Universal built a special stage to film miniature scenes. A gantry was constructed above the stage so a model biplane could be 'flown' over a huge miniature set. The stage is still on the Universal lot and is numbered 27. The stage also contains a large water tank. At one time it was known as the John Fulton Stage since when the stage was built, Fulton was in charge of all visual effects for Universal.

Mike finishes a mail delivery at an unnamed airport about 15 minutes into the story. The airport used in the scene was the Burbank, California airport, which had opened just two years before the film's 1932 release.

In an article he wrote on stunt flyer Paul Mantz, Don Hollway stated that the plane that was flown through the hangar had five feet of clearance at each wingtip.