3 ms·

What's the reason that the flame produced by the ignition system is green? Edit: ah, it's answered here https://news.ycombinator.com/item?id=25366736 https://n

• elteto 6y ago
  That’s incorrect. Raptor does not use a TEA/TEB igniter like Falcon. It uses a spark igniter. The green flame here is unintended engine ablation :) The chamber was melting.
  • ArPDent 6y ago
    specifically it's copper being vaporized i believe
    • remarkEon 6y ago
      Nice. Flashbacks to highschool chemistry. I'm assuming this isn't something you want to have happen ...
      • SAI_Peregrinus 6y ago
        No, engine-rich combustion cycles are definitely not something you usually want. Especially not on a re-usable craft.