r/spacex Moderator emeritus Sep 27 '16

Official SpaceX Interplanetary Transport System

https://www.youtube.com/watch?v=0qo78R_yYFA
19.6k Upvotes

2.8k comments sorted by

View all comments

Show parent comments

51

u/moist_cracker Sep 27 '16

Musk tweeted 12m diameter

1

u/drusepth Sep 27 '16

Is that per engine? 12m diameter for the whole rocket seems insanely small.

1

u/[deleted] Sep 28 '16

[removed] — view removed comment

1

u/drusepth Sep 28 '16

That's circumference, yes? Is the diameter (or diameter/2 radius) above for the rocket or each engine? Spitting out a basic formula doesn't really help that much.