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Pratt & Whitney Rocketdyne Completes Successful Test of J-2X Gas Generator

Written by thomas · Filed Under Aeronautics News 

September 8, 2008

thomas

CANOGA PARK, Calif., Sept. 8 /PRNewswire-FirstCall/ — Pratt & Whitney
Rocketdyne, a United Technologies Corp. (NYSE: UTX) company, completed a
series of successful tests on a gas generator for the J-2X rocket engine.
The J-2X engine will power the nation’s new Ares I and Ares V second-stage
launch vehicles scheduled to send United States astronauts to the
International Space Station and back to the moon by 2020.

The gas generator for the J-2X will use the same technology currently
used on the proven RS-68, the largest liquid hydrogen/liquid oxygen rocket
engine developed to power the Delta IV family of expendable launch vehicle.
Tests on this newly designed generator have helped determine the
performance and stability of the J-2X configuration and have helped
engineers finalize the specifications for the unit to be tested on the
powerpack and development engines. This unit is the first full-scale
hot-fire testing for J-2X components.

“We are using heritage technology with a successful track record of
reliability and performance and applying modern technology to create a
safer, more efficient product for our customer,” said John Vilja, J-2X
program manager, Pratt & Whitney Rocketdyne. “It’s a dynamic blend of
modern science and proven technology as we move into the next-generation of
space-launch vehicles. This approach will significantly reduce the overall
cost of the development program.”

The J-2X engine uses legacy technology from both the J-2 and J-2S
engines in the design and development of the fuel pump and oxidizer pumps.

Pratt & Whitney Rocketdyne, Inc., a part of Pratt & Whitney, is a
preferred 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 is a world leader in the design, manufacture and
service of aircraft engines, space propulsion systems and industrial gas
turbines. United Technologies, based in Hartford, Conn., is a diversified
company providing high technology products and services to the global
aerospace and building industries.

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