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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 original name of the company was Aeronautical Industries Incorporated.[1] In October 1927 the company changed its name to the Warner Aircraft Corporation. In November 1927 the first Scarab radial engine was produced. The Scarab Junior was introduced in 1930. In 1933, the company designed and built a much larger radial engine, the Super Scarab. This was to be the last engine the company produced. Warner Aircraft was taken over by the Clinton Machine Company in 1950.


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
1938 Super Scarab 185 SS-50A R-550 185 hp


  1. ^ Bill Gunston (1989). "Warner". World Encyclopedia of Aero Engines. Patrick Stephens Limited. p. 175. ISBN 1-85260-163-9.