HOPE (H-II Orbiting Plane) was a Japanese experimental spaceplane project designed by a partnership between NASDA and NAL (both now part of JAXA), started in the 1980s. It was positioned for most of its lifetime as one of the main Japanese contributions to the International Space Station, the other being the Japanese Experiment Module. The project was eventually cancelled in 2003, by which point test flights of a sub-scale testbed had flown successfully.
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HOPE (H-II Orbiting Plane) was a Japanese experimental spaceplane project designed by a partnership between NASDA and NAL (both now part of JAXA), started in the 1980s. It was positioned for most of its lifetime as one of the main Japanese contributions to the International Space Station, the other being the Japanese Experiment Module. The project was eventually cancelled in 2003, by which point test flights of a sub-scale testbed had flown successfully.
==History== At the time of the planning phase for HOPE-X, Japanese spaceflight had seen a string of successful advancements in the decade prior, including the development of the N-I and N-II rocket systems and the launch of the first Japanese satellites. Japan was a participant in plans for the Space Shuttle program as well as the proposed Space Station Freedom (later the ISS), and sought development of a vehicle to support its cooperation with the United States in low Earth orbit operations.
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