Green Run Update: Engineers Repair Valve for Mid-March Hot Fire Test

Engineers have successfully repaired a liquid oxygen valve on the Space Launch System rocket's core stage with subsequent checks confirming the valve to be operating properly.

The team plans to power up the core stage for remaining functional checks later this week before moving forward with final preparations for a hot fire test in mid-March at NASA's Stennis Space Center near Bay St. Louis, Mississippi. NASA anticipates setting a target date for the hot fire next week.

Last week during checkouts for the second hot fire test, data indicated the valve (a type of valve called a pre-valve) was not working properly.

The valve is part of the core stage's main propulsion system and is opened at the beginning of the test and closed if necessary to stop the flow of liquid oxygen from the core stage propellant tank to the respective RS-25 engine during the hot fire.

While the valve was repaired over the weekend, the team continued to prepare the core stage, its four RS-25 engines, and the B-2 test stand for the second hot fire at Stennis. This hot fire test will be the last test before the Artemis I core stage is shipped to the agency's Kennedy Space Center for assembly and integration with the rest of the rocket's major elements and the Orion spacecraft.

Please check back at this blog for an update on the date NASA is targeting for the second Green Run hot fire. For more information about SLS Green Run, visit here

Related Links
Artemis Blog
Rocket Science News at Space-Travel.Com

Tweet

Thanks for being there;
We need your help. The SpaceDaily news network continues to grow but revenues have never been harder to maintain.

With the rise of Ad Blockers, and Facebook - our traditional revenue sources via quality network advertising continues to decline. And unlike so many other news sites, we don't have a paywall - with those annoying usernames and passwords.

Our news coverage takes time and effort to publish 365 days a year.

If you find our news sites informative and useful then please consider becoming a regular supporter or for now make a one off contribution.

SpaceDaily Monthly Supporter
$5+ Billed Monthly

paypal only

SpaceDaily Contributor
$5 Billed Once

credit card or paypal

New design for Russian super-heavy methane-powered launch vehicle completed
Moscow (Sputnik) Mar 03, 2021
The new design of a Russian carrier rocket powered by liquefied natural gas (methane) has been put together, a space industry source told Sputnik. "It is planned to create a super-heavy launch vehicle ... [with] six side blocks around the central one - all with the RD-182 engine [operating on methane], and the upper stage using the RD-0169 [engine]", the source said. The Russian SRC (space rocket center) Progress has not been releasing much detail on the new Russian carrier rocket powered by ... read more