John Carmack
@ID_AA_Carmack · 22 нояб. 2014 г.
@elonmusk Good luck. We had supersonic control inversion issues with actuated fins, went back to little thrusters that worked at all speeds.
Elon Musk
@elonmusk
No choice. Entry velocity too high for a precision landing with N2 thrusters alone. Must have aero surfaces for pitch trim.
01:08 · 23 ноября 2014 г. · 0 просмотров
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