February 12, 2018@elonmusk →
“@doug_ellison @dsfpspacefl1ght Both exhaust velocity (Isp) and mass ratio drive the rocket equation. Also thrust/mass matters a lot for Oberth effect. Delta upper stage Isp is good, but mass ratio and thrust are not.”
Engagement vs. median curated tweet
705
Likes
52
Retweets
21
Replies
Companies involved
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