MX heritage of Ares 1-X

Not particularly surprising, but vaguely interesting.

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http://www.pw.utc.com/Media+Center/P...per+Har dware

Pratt & Whitney Rocketdyne Successfully Demonstrates Rocket Stability
Control with Peacekeeper Hardware

Bryan Kidder
Pratt & Whitney Rocketdyne
+1-818-586-2213


Carri Karuhn
Pratt & Whitney Rocketdyne
+1-818-586-4963


CANOGA PARK, Calif., Oct. 28, 2009 – Pratt & Whitney Rocketdyne
successfully demonstrated its ability to provide rocket stability
using heritage U.S. Air Force Peacekeeper missile system hardware
during NASA’s first Ares l-X test flight today from Kennedy Space
Center. The Ares l-X successfully rolled 90 degrees to mimic the
orientation that the Ares I rocket will use, and is another step
forward in Pratt & Whitney Rocketdyne’s cooperative effort with NASA
to develop the propulsion system for the next-generation of manned
spaceflight. Pratt & Whitney Rocketdyne is a United Technologies Corp.
(NYSE:UTX) company.

“The heritage hardware kept the test vehicle on a proper trajectory,
demonstrating its ability to provide stability during flight,” said Cy
Bruno, Roll Control System (RoCS) program manager, Pratt & Whitney
Rocketdyne. “It’s rewarding to know our heritage hardware is helping
provide NASA an early opportunity to test and prove flight
characteristics, hardware, facilities and ground operations in
preparation for the nation’s return to the moon and journey to Mars
and beyond.”

Under an agreement with Teledyne Brown Engineering, Inc., Pratt &
Whitney Rocketdyne helped design the RoCS and used hardware from the
decommissioned Peacekeeper missile program to provide rocket stability
during NASA’s first Ares l-X test flight. The heritage hardware
included propellant tanks, a pressurization system and two thrusters
that fired alongside the test rocket in short pulses to control the
vehicle’s roll. Pratt & Whitney Rocketdyne had built the hardware for
the Peacekeeper missile system’s fourth stage during the Cold War.