The Warner Aircraft Corporation of Detroit, Michigan was the manufacturer of the Scarab family of radial engines for airplanes in 1928 through the early 1930s. The first Aeronautical Industries Incorporated Scarab radial engine was produced in April 1927. In October 1927 the company changed name to the Warner Aircraft Corporation. The Scarab Junior was introduced in 1930, during 1933 a larger engine the Super Scarab was designed and built. The company did not produce any more engine models and was taken over by the Clinton Machine Company in 1950.
Engines
| Year | Name | Model | Military Designation | Rating |
|---|---|---|---|---|
| 1927 | Scarab | R-420 | 125 hp | |
| 1930 | Scarab Junior | 90 hp | ||
| 1933 | Super Scarab 165 | SS-50 | R-500 | 165 hp |
| 1933 | Super Scarab 185 | SS-50A | R-550 | 185 hp |
