1930 invented the pressure carburetor for aircraft engines. During World War II, every Allied aircraft engine used the carburetor.
In the 1930s Bendix established the Bendix Transcontinental Air Race to encourage experimental developments by airplane designers and to improve the skills of aviators in cross-country flying. Jimmy Doolittle won the first race in 1931, flying at an average speed of 223 mph from Los Angeles to Cleveland in nine hours and 10 minutes.
He formed Bendix Helicopter, Inc. in 1944 to develop a four-passenger helicopter.