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Hydromatic Propeller
Society: ASMEMain Category: Aerospace & AviationSub Category: AerospaceEra: 1930-1939DateCreated: 1938New England Air Museum
Bradley Intl. Airport
Windsor LocksState: CTZip: 06096Country: USAWebsite:, Hamilton Standard

Rapid development of aircraft design in the 1930s required many related innovations, including propeller design. The hydromatic propeller by Hamilton Standard marked a significant advance over the counterweight-type, controllable pitch propeller. The first test flight of the prototype took place in 1938: the public demonstration was made by a United Air Lines DC-3 over New York City on April 6, 1938. It played a distinguished role in allied combat aircraft in World War II.

Image Credit: Courtesy ASMEImage Caption: An early example of propeller innovations, including variable-pitch control and feathering capability.Era_date_from: 1938
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