Editing Pratt & Whitney (section)

===Pratt & Whitney Rocketdyne===
{{main|Pratt & Whitney Rocketdyne}}

[[Pratt & Whitney Rocketdyne]] (PWR) was formed in 2005 when Pratt & Whitney Space Propulsion and [[Rocketdyne|Rocketdyne Propulsion & Power]] were merged following the latter's acquisition from [[Boeing]].

P&W Rocketdyne engines powered the [[Space Shuttle]], and the company also supplies booster engines for [[Delta II]] rockets and boosters and upper stage engines for [[Atlas III]] and [[Atlas V|V]] and [[Delta IV]] rockets.

In 2013, PWR was sold to [[GenCorp]], which merged it with [[Aerojet]] to become [[Aerojet Rocketdyne]].