From the Archive: Terran 1, Aeon 1 Full Duration Mission Duty Cycle (MDC) @RelativitySpace
From the Archive: Terran 1, Aeon 1 Full Duration Mission Duty Cycle (MDC)  @RelativitySpace
Uploaded November 2020 | Updated September 2026, 2 weeks ago
Relativity successfully completed our Aeon 1 engine Mission Duty Cycle (MDC) test at NASA's Stennis Space Center in Mississippi. Our fully integrated Aeon 1 engine hotfired running at full power for 187 seconds, meeting the full duration required for the launch of our Terran 1 first stage.

A Mission Duty Cycle test is a pinnacle milestone in engine development, as it proves that all key engine components (turbopumps, injector, chamber, igniters, etc.) can operate in a flight-like configuration.

Relativity's speed of execution, from first integrated engine testing to successful MDC in 56 days, is a tremendous accomplishment.
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From the Archive: Terran 1, Aeon 1 Full Duration Mission Duty Cycle (MDC)Introduction: Terran R Program Update Q1 2025Terran R August 2025 Program UpdateAeon R fires at 100% power for 180 secondsPropulsion Highlight: Terran R Program Update Q1 2025Meet the #FutureMade Multihyphenate Humans at RelativityOverview & Progress: Terran R Program Update Q1 2025Terran 1 Stage 2 MDC Test #GLHFAeon R Thrust Chamber Assembly Testing | NASA Stennis Space CenterTerran R February 2026 Program UpdatePragmatic Decision Making: Terran R Program Update Q1 2025GLHF Launch Playlist: 90+ minutes of LoFi techno beats
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From the Archive: Terran 1, Aeon 1 Full Duration Mission Duty Cycle (MDC)

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