Everyday Astronaut
@Erdayastronaut · 9 сент. 2019 г.
Raptor couldn't do SSTO on that vehicle most likely. The RS-2200 was going to have 455s in a vacuum vs Sea Level Raptor's 370s. But with similar power as the RS-2200, there'd need to be 7 of them to get it off the ground.
Elon Musk
@elonmusk
Sea level Raptor’s vacuum Isp is ~350 sec, but ~380 sec with larger vacuum-optimized nozzle
17:51 · 9 сентября 2019 г. · 0 просмотров
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