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The Merlin 1D engines can restart up to four times, they use the pyrophoric mixture of TEA-TEB (Triethylaluminum-Triethylborane) to ignite the engines. My question is where is this stored in the engine so that it can be released several times to restart the engine?

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  • $\begingroup$ I think should be a double charge each time in order to restart the turbopump and the combustion chamber $\endgroup$ – Antonio Cipolla Apr 3 '17 at 7:00
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    $\begingroup$ No accurate diagrams have been published of the Merlin 1D or the engine section of the Falcon. That makes this a difficult question to answer. $\endgroup$ – Hobbes Dec 12 '17 at 10:25
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    $\begingroup$ I would expect the answer to be proprietary and/or ITAR controlled. $\endgroup$ – Carlos N Sep 27 '18 at 13:29

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