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A comment on Starship – SN8 – High-Altitude Flight Test. Parent comment

Re:Starship – SN8 – High-Altitude Flight Test by Gwypaas on Wednesday December 09, 2020 @06:16PM (#25366815)
The merlin engine uses TEA-TEB which causes the green flame seen on Falcon 9. The raptor uses electric spark ignition, which is harder but doesn't require any awfully poisonous chemicals and you can't run out.

https://en.wikipedia.org/wiki/SpaceX_Raptor

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