There is a better solution: don’t eat or drink for 6 hours before departure so your stomach will be empty at liftoff. The Starship E2E diet.
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I believe Elon means a Starship in Earth LEO, once fueled up by multiple refueling missions, will be able to take 100 metric tons of cargo (which included the mass of the crew, of course) to anywhere in the solar system that you can get to requiring no more than 6.9km/s of Delta-V. That would include the Moon, Mars, and many other destinations.
Now does he mean round trip or one way? I’m not sure.
Now does he mean round trip or one way? I’m not sure.
nwdiver
Well-Known Member
I think any round-trip to Mars would require in-situ refueling. That's one of the big reasons to using methane as a propellant.
Yes I agree but there is some discussion on reddit that Elon may mean round trip. Of course, this person on reddit could be wrong.
e-FTW
New electron smell
diplomat33
Average guy who loves autonomous vehicles
With 42 Raptor engines, Super Heavy Booster could produce upwards of 85,000 kN of thrust, twice the trust of Saturn V. WOW!!!
SpaceX's Elon Musk says Starship, Super Heavy will have more than 40 Raptor engines
SpaceX's Elon Musk says Starship, Super Heavy will have more than 40 Raptor engines
e^Verified account @elonmusk
"Now that Hopper has flown, Starship update probably in two weeks or so."
"Now that Hopper has flown, Starship update probably in two weeks or so."
e-FTW
New electron smell
A massive doc was published, some of it discussed in this article by NSF: SpaceX present to future: From retesting boosters to planning a Starship pad - NASASpaceFlight.com
If you want to dig deep: https://netspublic.grc.nasa.gov/main/20190801_Final_DRAFT_EA_SpaceX_Starship.pdf
Discussion of it here: Draft Environmental Assessment for the SpaceX Starship/Super Heavy at KSC
If you want to dig deep: https://netspublic.grc.nasa.gov/main/20190801_Final_DRAFT_EA_SpaceX_Starship.pdf
Discussion of it here: Draft Environmental Assessment for the SpaceX Starship/Super Heavy at KSC
e-FTW
New electron smell
Tweet by ChrisG: “SpaceX plans to launch the Starship/Super Heavy up to 24 times per year from LC-39A. A static fire test would be conducted on each stage prior to each launch."
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SpaceX is aiming to launch the SH/Starship almost every two weeks at LC39A? Wow.
Somehow I’m not expecting to see that happen for at least another decade. That is insanely ambitious.
And the booster is going to land at sea? “We’re going to need a bigger boat”.
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SpaceX is aiming to launch the SH/Starship almost every two weeks at LC39A? Wow.
Somehow I’m not expecting to see that happen for at least another decade. That is insanely ambitious.
And the booster is going to land at sea? “We’re going to need a bigger boat”.
e-FTW
New electron smell
This assessment is probably planning for the heaviest use imaginable, as imagined by Elon of course. ;-)
What they actually end up doing will then not need a new assessment I guess.
Newest update on Starship/Super Heavy progress and new design on August 24th in Boca Chica Texas.
On Aug. 3rd and 4th Elon tweeted he plans to hold an event on the 24th where he will review Starship program and detail major design decisions, pros/cons. Everyone following SpaceX has been waiting to hear the full story of why and how they have pivoted from earlier designs to the current stainless steel design.
I don’t know that Elon will come out and say this, but sometime in the past year or so he and his SpaceX team
decided they could build the new vehicles (or at least prototypes) much faster and looser than any previous large rockets, including their own. Even to the extent of assembling them outdoors.
I believe they are building two (which are not 100% identical or built same way) is not just because he likes the idea of two teams competing but because developing this radically fast makes it very likely that at least one of these prototypes will RUD during testing and he is fine if that happens, because he's convinced the increased development speed and reduced costs makes this a better/faster approach for getting to Mars.
This all seems obvious at this point but if it's been discussed already here I've missed it. Thanks in advance to any of the heavy hitters pointing out flaws in this reasoning.
I don’t know that Elon will come out and say this, but sometime in the past year or so he and his SpaceX team
decided they could build the new vehicles (or at least prototypes) much faster and looser than any previous large rockets, including their own. Even to the extent of assembling them outdoors.
I believe they are building two (which are not 100% identical or built same way) is not just because he likes the idea of two teams competing but because developing this radically fast makes it very likely that at least one of these prototypes will RUD during testing and he is fine if that happens, because he's convinced the increased development speed and reduced costs makes this a better/faster approach for getting to Mars.
This all seems obvious at this point but if it's been discussed already here I've missed it. Thanks in advance to any of the heavy hitters pointing out flaws in this reasoning.
Yah!
So, if they boost the number of Raptors proportionally, will the stage remain about the same height?
Seems like there is a relativly fixed ratio of fuel to engine to rocket mass with each subsection generating a fixed amount of net lift. More subsections, more total second stage and payload mass.
Alternatively, sameish number of engines and shorter stages to provide better stability for Starship Prime when landing.
So, if they boost the number of Raptors proportionally, will the stage remain about the same height?
Seems like there is a relativly fixed ratio of fuel to engine to rocket mass with each subsection generating a fixed amount of net lift. More subsections, more total second stage and payload mass.
Alternatively, sameish number of engines and shorter stages to provide better stability for Starship Prime when landing.
Tim Dodd on why the Starship Mk1/Mk2 prototypes apparently have just two fins at the rear instead of 3 as Elon showed last year.
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