Flight Angels is a 1940 commercial aviation film from Warner Bros. Pictures, produced by Edmund Grainger and directed by Lewis Seiler, from an original story by Jerry Wald and Richard Macaulay.
The basic premise of the film follows the operational conditions of a commercial airline, while also following its stewardesses and pilots as they go through their daily routines, punctuated with the details of their personal lives.
While he remains at the airline, along with engineer, Artie Dixon (Wayne Morris), he continues work on the design of a secret research aircraft, he calls the "stratosphere ship" that will revolutionize commercial aviation by flying faster and higher than any current type.
Angrily giving up his pilot's license, he decides to leave his wife and join the newly formed Chinese mercenary air force fighting against Japan.
[Note 2] Air Corps officers intercept him in San Francisco and call him back to active duty in the military to keep the secret of the "stratosphere ship" in US hands.