XCOR Achieves Major Rocket Propulsion Milestone

First Successful Hot Fire of its Liquid Hydrogen XR-5H25 Engine

MOJAVE, Calif. — XCOR Aerospace and United Launch Alliance (ULA) announced a significant milestone today, the first successful hot fire of the subscale 2500 lbf thrust XR-5H25 engine in the XCOR and ULA liquid hydrogen (LH2) engine development program.

“The first hot fire of any engine is a major milestone but the first firing of a liquid hydrogen engine in our LH2 program is an even bigger accomplishment,” noted XCOR Chief Executive Officer Jeff Greason. “The hot fire of this engine moves us forward on a path to routine tests and further demonstration of fully reusable, high reliability rocket engines for which we are known.”

“XCOR’s ability to develop inexpensive, innovative and out-of-the-box solutions to some of the most challenging problems in modern cryogenic rocket engine technology was on display in Mojave,” said George Sowers, vice president of Strategic Architecture at ULA. “It was a great first set of engine runs and we look forward to seeing the engine and XCOR’s unique piston pumps integrated together in 2014.”

Conceived as a lower-cost, risk-managed approach, the goal of the XCOR/ULA LH2 engine program is to produce and operate a subscale demonstration engine. This demonstrator will enable a future decision to pursue development of a flight-ready cryogenic upper-stage engine in the 25,000 lbf thrust class. This technology has significant growth potential due to its unique thermodynamic cycle and piston pump. The larger thrust XCOR XR-8H21 LH2 engine should cost significantly less to produce and be much easier to operate than competing upper stage rocket engine technologies.

XCOR Chief Operating Officer Andrew Nelson said “I was very impressed with how our team dedicated itself to achieving a task that has not been accomplished in at least a quarter century, maybe more; the development of a new way to do liquid hydrogen rocket engines that fundamentally breaks current cost, reliability and operational models. Even more than that, it will be the first piston-pump-fed LH2 rocket engine anywhere.”

The 5H25 engine is intended as a testbed, but could also be suitable for future in-space use on upper stages, earth departure stages, landers, and probes. Nelson added, “This is a significant leap forward in the hope to deliver yet another line of innovation and business to XCOR. And it is only taking place right here.”

About XCOR Aerospace: XCOR Aerospace is based in Mojave, California. It is currently starting the process to create a new Research and Development Center in Midland, Texas and an operational and manufacturing site at the Kennedy Space Center in Florida. XCOR® builds safe, reliable and reusable rocket-powered vehicles, propulsion systems, advanced non-flammable composites and rocket piston pumps. XCOR works with aerospace prime contractors and government customers on major propulsion systems, while also building Lynx®. Lynx is a piloted, two-seat, fully reusable liquid rocket-powered vehicle that takes-off and lands horizontally. The Lynx-family of vehicles serves three primary missions depending on their specific type including: research & scientific missions, private spaceflight, and micro satellite launch (only on the Lynx Mark III). Lynx production models (designated Lynx Mark II) are designed to be robust, multi-mission (research / scientific or private spaceflight) commercial vehicles capable of flying to 100+ km in altitude up to four times per day. Lynx vehicles are available to customers in the free world on a wet lease basis to start their own manned space flight program. (www.xcor.com).

United Launch Alliance: ULA is a 50-50 joint venture owned by Lockheed Martin and The Boeing Company, and is the nation’s rocket company, bringing together two of the launch industry’s most experienced and successful teams – Atlas and Delta. ULA provides reliable, cost-efficient space launch services for the Department of Defense, NASA, the National Reconnaissance Office and other commercial organizations. ULA program management, engineering, test, and mission support functions are headquartered in Denver, Colo. Manufacturing, assembly and integration operations are located at Decatur, Ala., and Harlingen, Texas. Launch operations are located at Cape Canaveral AFS, Fla., and Vandenberg AFB, Calif. For more information on ULA, visit the ULA Web site at www.ulalaunch.com, or call the ULA Launch Hotline at 1-877-ULA-4321 (852-4321). Join the conversation at www.facebook.com/ulalaunch and twitter.com/ulalaunch.