Elon Musk
@elonmusk
En réponse à @SidewalkSciGuy
Falcon rocket booster is aluminum-lithium & carbon fiber, which have low max temperature allowables. Super Heavy booster is stainless steel. Since it only goes to around Mach 8 or 9, moreover at high altitude, it needs no heat shield, not even paint.
20:46 · 17 mars 2019 · 0 vues
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