The failure of SpaceX’s Starship on its most recent test flight had a different root cause than the previous failure, SpaceX said May 23.

The timing of the Flight 8 failure was similar to Flight 7 in January, which also featured several engine shutdowns and a loss of communications about eight and a half minutes after liftoff. However, SpaceX says the two failures had different causes.

“While the failure manifested at a similar point in the flight timeline as Starship’s seventh flight test, it is worth noting that the failures are distinctly different,” the company stated.

In the case of Flight 8, SpaceX said one of the center Raptor engines in Starship suffered a hardware failure, details of which the company did not disclose. That failure enabled “inadvertent propellant mixing and ignition” that caused the loss of the Raptor. Immediately thereafter, the other two center Raptor engines shut down, along with one of the three outer vacuum-optimized engines with larger nozzles. The vehicle then lost control authority.

The company said it made changes to the Raptors in the Starship upper stage, with “additional preload” on key joints and a new nitrogen purge system as well as improvements to the propellant drain system. A future version of Raptor in development will also have reliability improvements to address the problem seen on Flight 8.

On Flight 7 in January, SpaceX, said the vehicle suffered a harmonic response several times stronger than expected, creating additional stress on the vehicle’s propulsion system. That caused leaks that triggered a fire in the engine bay.

“The mitigations put in place after Starship’s seventh flight test to address harmonic response and flammability of the ship’s attic section worked as designed prior to the failure on Flight 8,” SpaceX said.

    • ptfrd@sh.itjust.worksEnglish
      11·
      3 months ago

      I’m asking you. If you’re a follower of his, I suggest you ask him to reupload any deleted videos to a second channel, for the sake of transparency.

      This would have been a long time ago, obviously. Reusability is widely accepted these days.

        • ptfrd@sh.itjust.worksEnglish
          2·
          3 months ago

          If it’s true he deleted a video he’s obviously not going to reUpload.

          You could at least find out what his response might be. If he outright lies, someone might come forward and ‘testify’ to that fact.

          You made a claim, the burden of proof is on you

          No, I asked a question.

          I’m increasingly confident that Thunderfoot is indeed the guy about whom I’ve heard that allegation, but since I don’t have proof, it has to remain as a question

          • Ek-Hou-Van-Braai@piefed.socialEnglish
            1·
            3 months ago

            You’re asking me to pop a message to someone with over a million subscribers, and ask him what I think is a stupid question.

            I’ve been following him closely for years, and he doesn’t release many videos, I don’t remember the video you’re talking about.

            You can check the way back machine or Internet archives.

            Where do you get the information from that he deleted videos?