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Space & Science

NASA Runs 500-Second Hot Fire Test on RS-25 Engine at Stennis

First reported Source: NASA News ReleasesLast editorial activity Write a comment ↓
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NASA has announced a hot fire test of an RS-25 engine at its Stennis Space Center near Bay St. Louis, according to its own news release. The test ran for almost eight and a half minutes at a 111 percent power level.

Test duration matches a launch firing

According to the NASA News Releases, the hot fire test ran for 500 seconds, close to eight and a half minutes. That is the same length of time RS-25 engines fire during the launch of NASA's Space Launch System, or SLS, rocket.

The engine was run at a 111 percent power level during the test.

Role of RS-25 engines in Artemis missions

For each Artemis mission, four RS-25 engines together generate up to 2 million pounds of combined thrust to help launch the SLS rocket.

Before any RS-25 engine is used, it is proven flightworthy at NASA Stennis, the release states.

Key facts

  • NASA teams at the Stennis Space Center near Bay St. Louis conducted an RS-25 engine hot fire test.
  • The test lasted almost eight and a half minutes, or 500 seconds.
  • The test ran at a 111 percent power level.
  • That duration matches the time RS-25 engines fire during an SLS launch.
  • Four RS-25 engines together produce up to 2 million pounds of thrust for each Artemis mission.

Sources & evidence

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