Hop Harrigan Americas Ace of the Airways (1946)

Hop Harrigan a top Air Corps pilot leaves the military and he and his mechanic Tank Tinker open up a small charter air service They are hired to fly an inventor Dr Tabor to his secret laboratory where he is working on a new and powerful energy machine However a mysterious villain named The Chief Pilot is determined to have the new energy machine for his own purposes and kidnaps Dr Tabor