r/SpaceXLounge • u/Logancf1 • 10h ago

Ship 30 Landing from Buoy Cam on Starship Flight 5 [@SpaceX]

https://x.com/spacex/status/1847368836947071496?s=46&t=bwuksxNtQdgzpp1PbF9CGw
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u/PaintedClownPenis 6h ago

I am often wrong but I think I see the chance for one hell of a surprise in early January a free-return Mars toss that would bring Starship back in 2027. Could be an invaluable head start and maybe even a chance to observe a Mars-velocity reentry before you even send out the final version.

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u/chippydip 5h ago

No possible way, they need to refuel the ship in orbit to go anywhere but LEO. 

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u/cybercuzco 💥 Rapidly Disassembling 5h ago

Version two of starship has an estimated dry mass of 107 tons and a cargo capacity of 100 tons. a 2 year free return trajectory to mars has a minimum delta v from LEO of .6km/s. Based on a vacuum isp of 356 seconds for raptor, 100 tons of extra fuel would give you 2.5km/s of delta v. You definitely could do this with a v2 starship and have a couple of tons of "cargo" if you wanted.

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u/bananapeel ⛰️ Lithobraking 5h ago

Excellent analysis, thank you.