No abstract

The H-II Transfer Vehicle (HTV) is a Japanese unmanned cargo transfer vehicle developed for the International Space Station (ISS) re-supply and waste disposal purposes. HTV1 through HTV3 completed the mission successfully, and HTV4 through HTV7 are planned to be launched once a year continuously. Under the circumstance that the achievement is evaluated highly and the expectation for the new usage of HTV is increased, we have prepared a new platform and report some experiments plan with using it in the paper.

No abstract

No abstract

This paper describes the evaluation method of the new Japanese thrusters design, balancing and verification of interface compatibility with the HTV system and operation design. Thruster performance directly affects the performance of the space craft. Therefore, the thruster replacement from the imported thrusters to the new Japanese thrusters required the evaluation from the view point of high-order system level. It is important to select the appropriate elements, verify their relationships, and create a feedback mechanism which allows modification of each element. This method will facilitate the overall systems design for future inter-orbit transfer vehicles.