NASA has successfully completed all ground tests of the SLS rocket and is preparing for the third launch attempt

NASA has successfully completed all ground tests of the SLS rocket and is preparing for the third launch attempt

NASA’s SLS rocket has passed all ground tests and is preparing for launch on September 27

The JAR finished this Wednesday Kennedy Space Centerin Florida, a series of tests in the SLS rocket unmanned mission Artemis I having achieved all the objectives set and despite the discovery of a liquid hydrogen leak.

“All the goals we set for ourselves, we were able to achieve. I’m very excited about today’s test,” said Artemis I Launch Manager, Charlie BlackwellThompsonat the end of the callcryogenic demonstration test”.

Shortly after 10 am local time, three hours after the start of the tests, the launch controllers interrupted the loading of liquid hydrogen into the central stage of the rocket for a few minutes after discovering a leak of this gas.

Filtration in a 20 cm plate in the same part where on September 3 another leak of liquid hydrogen discovered which caused the suspension of the mission takeoff, occurred when the process changed from a slow fuel fill to a fast fuel fill.

The directive pointed to the channel NASA television that the team was able to solve the problem by means of emergency mechanisms, which proved effective in similar hypothetical cases in the future, and that the hydrogen filling process could continue.

The leak of a 20cm plate in the same part where another leak of liquid hydrogen was noted on September 3, which led to the suspension of the mission liftoff, occurred when the process went from from slow fill to fast fill.
The leak of a 20cm plate in the same part where another leak of liquid hydrogen was noted on September 3, which led to the suspension of the mission liftoff, occurred when the process went from from slow fill to fast fill.

Awaiting the tentative date of the next September 27 for takeoff from Cape Canaveral (Florida, USA) of this mission which will make an unmanned trip to the Moon, Blackwell-Thompson He specifies that it is necessary to wait for the analysis of the tests to know if changes are necessary in the hydrogen loading procedures.

During the cryogenic demonstration test, the loading of liquid oxygen into the intermediate part of the rocket was carried out without problems.

One of the purposes of this Wednesday’s tests was to verify repairs made to the liquid hydrogen supply line, where new seals have been placed.

Launch controllers began the slow loading of supercold liquid hydrogen and oxygen into the rocket’s main and midstages.

Super cold liquid hydrogen lowers the temperature of the four RS-25 engines to the level suitable for takeoff which are located in the lower part of the 98-meter high rocket, the most powerful built to date and on the upper part of which the Orion capsule rests.

Super-cold liquid hydrogen lowers the temperature of the four RS-25 engines to the appropriate level for Orion Capsule liftoff.
Super-cold liquid hydrogen lowers the temperature of the four RS-25 engines to the appropriate level for Orion Capsule liftoff.

If the next release date is kept on the 27th of this month, the 70-minute launch window will open at 11:37 a.m. local time. To take off that day, the orion shipthat the rocket will propel to the Moon, will return to Earth on November 5.

NASA maintains as second launch date October 2 and in this case, the Orion spacecraft would return on November 11, with a 109-minute launch window opening at 2:52 p.m. local time.

The first attempt to launch the Artemis I took place on August 29, but was canceled due to a failure of one of the 4 RS-25 motors of the powerful SLS rocket, 98 meters high. This was followed by a second attempt on September 3, suspended due to a liquid hydrogen leak.

The objective ofhe first Artemis mission is to test the capabilities of the SLS and the Orion spacecraft before a manned trip scheduled in principle for 2024, which will be followed by a third during which for the first time since 1972 American astronauts, including a woman and a person of color, will tread the lunar surface.

(With information from EFE)

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