

For over 50 years, Pratt & Whitney Rocketdyne has been the go-to provider and industry leader for rocket engine technology, and we have successfully contributed to safely launching more than 800 people into space. We continue to supply propulsion systems for the most significant launch and defense systems in the world. From conceptualization to flight verification, we leverage our deep understanding of fluid dynamics, thermal management and advanced materials to deliver optimized products that meet the most stringent requirements, resulting in greater efficiencies and increased power. Our advanced systems engineering capabilities allow us to quickly test prototypes, analyze data, and reduce the number of iterations necessary to reach the best possible design. We continually work to deliver optimized solutions and zero-fail performance in each and every rocket engine we produce.
Human rated, reusable, with 100 percent flight success.
A direct descendent of the rocket engine that powered Apollo to the moon.
Commercially-developed liquid hydrogen booster engine providing nearly 700,000 pounds of thrust.
The most reliable, safest, and highest-performing upper-stage engine in the world.
One of the most consistent and successful launch records in history.
International cooperation and partnership yielding nearly one million pounds of thrust for the Atlas V fleet.
Extending the capability of the past for exploration in the future.
Pratt & Whitney Rocketdyne.
A power, propulsion and optimization company.