 Shortly after the introduction of the HW-75, Stinson became a subsidiary of the Vultee Aircraft Corporation.Under Vultee management, the HW-75 was equipped with an 80-horsepower four-cylinder engine for the 1940 model year and the HW-75 became known as the Model 105 "Voyager", touting its 105 mph cruise speed.Fitted with a four-cylinder 90 hp Franklin engine for the 1941 model year, the type became known as the Model 10A.