Pratt & Whitney Rocketdyne???s engines boots US government payload into space

Pratt & Whitney Rocketdyne on Tuesday announced that its propulsion systems had helped lift a critical satellite, for the US government, into space.

The mission launched from Vandenberg Air Force Base, California, on a United Launch Alliance Delta IV medium rocket with Pratt & Whitney Rocketdyne RS-68 and RL10B-2 engines providing the booster and upper-stage propulsion, respectively.

The company said that its RS-68 is the world???s largest hydrogen-fuelled engine, designed for heavy lift with 758,000 pounds of vacuum thrust and 663,000 pounds of sea-level thrust. The RL10B-2 is a unique cryogenic upper-stage engine that provides 465 seconds of specific impulse and 24,750 pounds of thrust.

Pratt & Whitney Rocketdyne, a part of Pratt & Whitney, is a preferred provider of high-value propulsion, power, energy and system solutions.