Elon Musk
@elonmusk · Jun 10, 2020
Quite a piece! I should credit Soviet/Russian engine work in the 80’s as being a factor in deciding to switch from H2 to CH4. They demonstrated excellent performance on test stands, with Isp up to 380 secs.
Elon Musk
@elonmusk
Combined with SpaceX deep subcooling of propellants to near liquefaction temp of N2, use of common dome (CH4 & O2 liquid at similar temps) & higher T/W of engines enables de facto higher delta-V than an H2/O2 stage
05:58 PM · June 10, 2020 · 0 views
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