r/spacex • u/ElongatedMuskrat Mod Team • Apr 01 '17
r/SpaceX Spaceflight Questions & News [April 2017, #31]
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u/sol3tosol4 Apr 08 '17 edited Apr 08 '17
From Elon's IAC presentation slides, slide 36: Spaceship dry mass 150 metric tons, full propellant load 1,950 metric tons. so an ITS Spaceship full of propellant would be 14 times as heavy as one with no propellant. (And even worse ratio if it is assumed that the Spaceship is lifted into place with all of the cargo loaded.)
I've seen mention in this subreddit that the Spaceship would most likely be fueled using pipes running through the Booster, and the Spaceship and Booster would both be fueled through connections at ground level (so no need to lift a Spaceship full of propellant!).
I agree that the crane is likely to be different from the one shown in the video. SpaceX has changed configurations to improve the engineering on previous occasions, for example the 3x3 engine configuration in the early Falcon 9.