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Delays For Japan’s HOPE-X Shuttle
Japan has temporarily placed plans to
develop an unmanned space shuttle on hold. Japan had originally
planned to launch the H-2 Orbiting Plane Experiment (HOPE-X), in
2004. The program has already suffered four years of delay. This
freeze is the result of questions raised over how the shuttle should
be launched. An advisory panel has proposed that a reusable jet
plane be used to lift the shuttle off the ground instead of
launching by rocket. The original concept used the HII(A) to launch
the shuttle. This latest idea, raised by the panel, is to use a jet
engine to get the HOPE-X vehicle off the ground.
The HOPE-X is designed to conduct
scientific experiments and ferry payloads up to 3 metric tons using
a design based on the U.S. space shuttle.
HOPE-X
is a joint project between the National Space Development Agency of
Japan (NASDA) and Japan’s National Aerospace Laboratory (NAL).
Japan has spent US$238 million on the project.
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