Marcoux-Bromberg R-3 'Special'
Gift of Pratt & Whitney Aircraft Group, United Technologies Corporation
The original airplane was built to the design of Keith Rider as the R-3 during 1933 and 1934. In 1936 is was purchased by Hal Marcoux, who was employed at Douglas Aircraft. He and Jack Bromberg, also from Douglas, carried out major modifications. In 1936, with pilot Earl Ortman, the plane qualified for the Thompson Trophy Race at 258.9 mph, with one lap at 278 mph, and took second place in the race at an average speed of 248 mph. It also took second place at the Thompson race in 1937, and 1938, and third in 1939. In 1936 it won the Golden Gate Trophy and in 1937 took second in the Bendix Transcontinental. It was powered successively by Pratt & Whitney Wasp Jr., Wasp and finally a Twin Wasp Jr. Special. The aircraft was also featured in the Clark Gable movie, "Test Pilot."
The airplane is configured as it was raced in its final season, 1939.