NASA Terminates Space Plane Project
Reuters
2001-03-02  08:15

WASHINGTON (Reuters) - NASA has terminated its experimental X-33 space plane
project that had been envisioned as a lower-cost successor to the aging
space shuttle fleet for missions into orbit, space agency officials have
announced.
The X-33 program was given the ax after five years of development that never
even reached the point of a test flight.

The National Aeronautics and Space Administration said it spent $912 million
on the project -- hoping to create an effective new-generation reusable
spacecraft to transport people and cargo into space. X-33 designer Lockheed
Martin Corp. spent $357 million, NASA said.

NASA also said the X-34, another, smaller suborbital test vehicle, was being
killed. NASA said it is in the process of ending its X-34 contract with
Orbital Sciences Corp. of Dulles, Virginia.

"This has been a very tough decision but we think it is the right business
decision," Art Stephenson, director of NASA's Marshall Space Flight Center,
said in a statement on Thursday.

"We have gained a tremendous amount of knowledge from these X-programs, but
one of the things we have learned is that our technology has not yet
advanced to the point that we can successfully develop a new reusable launch
vehicle that substantially improves safety, reliability and affordability,"
Stephenson added.

The Marshall Space Flight Center in Huntsville, Alabama, managed the X-33
and X-34 programs for NASA.

In November 1999, the X-33's composite liquid hydrogen fuel tank failed
during testing, the space agency said. NASA said Lockheed Martin proposed to
complete development of the space plane by replacing its two composite
liquid hydrogen tanks with aluminum tanks. But NASA said the benefits of
testing the X-33 in flight did not justify the cost.

NASA began the X-33 program in 1996 as part of its Reusable Launch Vehicle
program.

The space agency said the program called for the demonstration of a
single-stage-to-orbit vehicle -- one that would go from launch stand to
orbit without using multiple stages as the Saturn moon rocket did or
dropping rocket motors and fuel tank like the space shuttle.

NASA said the X-33 program will end when the cooperative agreement between
the space agency and Lockheed Martin expires on March 31 unless Lockheed
Martin chooses to go forward with the program with its own funds.
RTR/SCIENCE-SPACE-PLANE-DC/


John

Keiner ist hoffnungsloser versklavt als derjenige, der irrtümlich glaubt
frei zu sein.

There are none more hopelessly enslaved then those who falsely believe they
are free!


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