During the three attempts in April, the agency provided only occasional blog posts and tweets, saying it could not provide more detailed technical information because of export control concerns, even though the agency provided such information during the shuttle program.įor the upcoming test there will be commentary during the fueling and countdown, Free said, along with “fantastic” graphics, although the agency will still not release the same level of detail as during the shuttle program. NASA also promised to provide more real-time information for the upcoming WDR. “Some of it was demonstrated last time as well but we were able to automate some of it, and then we’re also able to look at some other ways in which we might be able to do that,” she said. The changes are intended to prevent pressure fluctuations seen during loading in previous attempts, said Charlie Blackwell-Thompson, Artemis launch director. “Our team was able to go back in, in that time we had back in the VAB, to automate those procedures, which we know will help us,” “We saw some things with LOX when we loaded, and hydrogen,” said Jim Free, NASA associate administrator for exploration systems development. NASA also refined procedures for loading propellants into the core stage after running into issues with both liquid oxygen (LOX) and liquid hydrogen. ![]() NASA rolled the SLS back to the Vehicle Assembly Building (VAB) to perform repairs that included replacing a helium check valve in the rocket’s upper stage and fixing a hydrogen leak in ground equipment. The three earlier attempts never reached the terminal stage of the countdown, running into a series of technical problems.
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