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XCOR Aerospace Press Release

Charles Rector's Weblog; Mar. 27, 2013; By Charles Rector
Type: News

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XCOR Contact:
Bryan Campen
XCOR Aerospace
Phone: +1 (630) 877-0225
Email: []
XCOR Aerospace Announces Significant
Propulsion Milestone on Lynx Suborbital Vehicle

March 26, 2013, Mojave, California - XCOR Aerospace today announced a first in aviation
and space history, the firing of a full piston pump-powered rocket engine. This
breakthrough is the foundation for fully reusable spacecraft that can fly multiple
times per day, every day. It is a game changing technology that has the power to
 fundamentally alter the way we as a society view, visit, and utilize the abundant
resources around our planet and in our solar system.

The initial portion of XCOR's pump test program culminated in a 67-second engine
 run with the propulsion system mated to the flight weight Lynx fuselage.  After
 the installation of the flight sized liquid oxygen tank, the next test sequence
 will extend the engine run duration to the full powered flight duration of the
Lynx Mark I suborbital vehicle.

"Through use of our proprietary rocket propellant piston pumps we deliver both kerosene
and liquid oxygen to our rocket engines and eliminate the need for heavy, high-pressure
fuel and oxidizer tanks. It also enables our propulsion system to fly multiple times
per day and last for tens of thousands of flights," said XCOR Chief Executive Officer
Jeff Greason. "This is one more step toward a significant reduction in per-flight
cost and turnaround time, while increasing overall flight safety."

Boeing provided additional funding to complete the XCOR test sequence and advance
low-cost rocket propulsion technology. The demonstrated results of the full pump
 fed engine firing for extended periods helps to ensure the technology migrates
into broader global applications.

"Unlike the expensive and finicky turbopumps on today's rocket propulsion systems,
XCOR's piston pumps are designed to be as powerful in their thrust class as turbines,
but as easy to manufacture, maintain and operate as an automotive engine," said
XCOR Chief Operating Officer Andrew Nelson. "This is the culmination of a 12 year
program to develop this unique technology. The kerosene piston pump has been successfully
flight-proven during our 40-flight test program on the X-Racer aircraft. We'll be
entering another flight test program soon with Lynx and these pumps and engines
will power XCOR and the industry to the next level."

# # #

About XCOR Aerospace: XCOR Aerospace is on the verge of becoming the most active
 spaceflight company in the world based on our safer, reliable and reusable rocket-powered
vehicles, propulsion systems, advanced non-flammable composites and rocket piston
pumps. XCOR is building Lynx, 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. XCOR also works
with aerospace prime contractors and government customers on major propulsion systems
development. XCOR Aerospace is based in Mojave, California and is creating a new
 Research and Development Center in Midland, Texas. (

XCOR®, Lynx®,Your Mission. Our Ship.®and Explorers Wanted® are Registered Trademarks
of XCOR Aerospace, Inc

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