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[ merged in 2013 in Aerojet Rocketdyne ]
Pratt & Whitney Rocketdyne (PWR) was a United States company that designed and produced rocket engines that use liquid propellants.
PWR was a division of Pratt & Whitney. It was a provider of high-value propulsion, power, energy and innovative system solutions used in a wide variety of government and commercial applications, including the main engines for the space shuttle, Atlas and Delta launch vehicles, missile defense systems and advanced hypersonic engines.
Pratt & Whitney Rocketdyne was headquartered in Canoga Park, Calif., USA.
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