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TIMELINE
1920s
Pratt & Whitney is founded in 1925.
1925

Pratt & Whitney Aircraft Company is founded by Frederick B. Rentschler in Hartford, Conn., as a partially owned subsidiary of the Pratt & Whitney Company, a toolmaker.

Pratt & Whitney eagle logo first appears in 1925.
1925

The Pratt & Whitney eagle logo appears for the first time in an advertisement in the October edition of the trade journal Aero Digest.

Pratt & Whitney builds the first Wasp engines in 1925.
1925

The experts say airplane engines should be liquid-cooled, but Pratt & Whitney founder, Frederick B. Rentschler, questions that and finds a better way. Pratt & Whitney builds the Wasp—a lighter, air-cooled engine that revolutionizes the aircraft industry.

U.S. Navy orders 200 Wasp engines.
1926

The U.S. Navy orders 200 Wasp engines—Pratt & Whitney’s first production order. The Wasp soon becomes the dominant engine on Navy and Army Air Force fighter planes. The first production engine was shipped on December 17, 1926.

Pratt & Whitney builds the first Hornet engine in 1926.
1926

Pratt & Whitney begins development of a more powerful engine, the Hornet—initially rated at 525 horsepower and weight of 750 pounds.

Wasp-powered Boeing Model 40A mail plane
1927

The world becomes a much smaller place when William Boeing installs Pratt & Whitney’s new Wasp engines in his Model 40A mail planes, boosting power and reducing weight—allowing the planes to carry passengers as well as mail.

Photo credits: “Boeing Model 40 over mountains circa 1930s,” © 1930s jmabel / Seattle Municipal Archives, used under a Creative Commons Attribution 2.0 Generic license
Pratt & Whitney Canada is founded.
1928

James Young (back row, center) founds Canadian Pratt & Whitney Aircraft Company, Limited with a mandate to repair and overhaul Pratt & Whitney Wasp radial piston engines.

1929

Pratt & Whitney becomes part of United Aircraft & Transport Corporation, which includes such industry leaders as Boeing, Chance Vought, Sikorsky, Hamilton Standard, and a group of carriers that would become United Airlines.

Pratt & Whitney moves to East Hartford
1929

Pratt & Whitney crosses the Connecticut River, from Capitol Avenue in Hartford to a new home in East Hartford.

Pratt & Whitney Canada opens its facility in Longueuil, Quebec
1929

Pratt & Whitney Canada opens its facility in Longueuil, Quebec to assemble, overhaul and service Pratt & Whitney Wasp and Hornet engines.

1930s
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