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/sci/ - Science & Math

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12446425 No.12446425 [Reply] [Original]

So.

Now that the dust has settled...

What did we learn from this?

>> No.12446453

>>12446425
But this diverges from the simulation. An anomaly!

>> No.12446474

>>12446425
>What did we learn from this?

>yet more confirmation that starliner can hover
>it's possible to do a controlled transition to a bellyflop
>it's possible to do a controlled bellyflop glide
>it's possible to do a controlled transition to vertical again
>fucking pressurize the header tanks

>> No.12446526

Grain Silos are closer to space than SLS.

>> No.12446555

>>12446425
those engines gimbaling and relighting during flips is some wild shit

>> No.12446605

>>12446425
>you can fly to 12.5km
>you can belly flop down
>you can flip back up
>the header tank design needs work
>don't starve your raptors or they will self cannibalize

>> No.12446626

>>12446425
Why don't they use flaps/parachutes to slow it down?

>> No.12446664

system failures in space rockets are dangerous

>> No.12446672

>>12446626
Mars doesn't have enough of an atmosphere for that

>> No.12446694

>>12446672
Why are we going there then.
Mars sucks.

>> No.12446699

>>12446694
To colonise the ayys and steal their shit

>> No.12446700

>>12446694
I don't think you're part of the "we" that's going there so you have nothing to worry about.

>> No.12446701

That Starship isn't a paper rocket and will fly in the next 5 years.

>> No.12446710

>>12446672
Nonsense, parachutes work in mars. They just have to be bigger.

>> No.12446712

>>12446710
Bigger = heavier, parachutes aren't light.

>> No.12446715

>>12446694
Its good entertainment. You know how Hollywood spends billions just to entertain? Idem.
>muh tax
Once you pay its not yours anymore.

>> No.12446721

>>12446712
Parachutes have been used on mars before so i dont know what are you on. They were used in all these probes in the 70s and 80s .

>> No.12446726

>>12446712
Isn't the whole point of this rocket that it can transport mass more efficiently

>> No.12446750

>>12446425
I myself learned that an emergency landing on starship would likely mean simply bracing for impact

>> No.12446759
File: 788 KB, 1166x1650, 1594432726728.png [View same] [iqdb] [saucenao] [google]
12446759

everything works except for the plumbing of their engine setup. one cluster of problems that can be fixed entirely on the ground, very quickly with the aid of computer simulation.

moon mine 2024 screencap me faggot

>> No.12447176 [DELETED] 

dumb

>> No.12447304 [DELETED] 

hmm

>> No.12447829 [DELETED] 

hmm

>> No.12447833

>>12446474
I wonder how high can it go with the tanks full. I guess we will find out next year with SN 10 or 11.

>> No.12447837
File: 506 KB, 1920x2880, Ariane_5_liftoff_on_flight_VA233_pillars[1].jpg [View same] [iqdb] [saucenao] [google]
12447837

post yfw this bad bitch destroys the JWST

>> No.12447838

>>12446699
This.

>> No.12447865

Steel rockets don't work and reusability is a waste of tax payer money.

Support the SLS. Support progress and tradition.

>> No.12447883

>>12447865
orange rocket bad

>> No.12447900

>>12446759
shouldn't the left be a boeing boomer?

>> No.12447903

>>12447837
Fucking frogs better not fuck this up.

>> No.12448232

>>12447903
They will. One rocket exploded with payload a month ago.

>> No.12448748 [DELETED] 

lol

>> No.12448773

>>12446425
raptors are a shit engine

>> No.12448831

We're not going to Mars anytime soon, are we?

>> No.12448880

>>12448831
You're not.

Immigration to another world will never be enough for the plebiscite to travel steerage class like they did in the steamship era.

Mars, the moon, and beyond are for the elite and the technicians the Elite cannot outsource via telecommuting or eliminate via automation.

Maybe if we make a laser powered orbital lifter...

>> No.12448886

>>12448880
>plebiscite
Fuggg. Outed as a phoneposter...

>> No.12448891

>>12446726
No, just cheaper

>> No.12448916

>>12448880
>only elites
Of course, even a nigglet with half a brain knows that. What I'm worried about is that this will set back the eventual manned mission to Mars another 5 years or a decade.

>> No.12448949

>>12448916
Why would it? No one with a brain expected them to land it first try, Falcon was less ambitious and took them double digits attempts.

>> No.12449035

>>12446425
That their CGI is getting better and better.

>> No.12449144

>>12448773
Why didn't they use 4 raptor engines instead of 3?

>> No.12449154

>>12446425
starships make the best 'splosions

>> No.12450009

>>12449144
Doesn't the starship have 6? Why not use all six?

>> No.12450024

>>12448773
The raptors were fine, problem was in the fuel systen.

>> No.12450307

>>12446694
Unironically because we can. Going to the moon didn't really do us any material good either, but it was still worth it because it was a cool thing to achieve.

>> No.12450321

what dust? how has this "dust" settled? OP is a phaggot

>> No.12450333
File: 76 KB, 700x700, 1D81B569-B2B6-4BD8-893B-715A0E193A69.jpg [View same] [iqdb] [saucenao] [google]
12450333

>>12448880
>Mars, the moon, and beyond are for the elite and the technicians the Elite cannot outsource via telecommuting or eliminate via automation.

Only true in the relative near term. And Earth is paradise compared to those places (in the near term).

>> No.12450461

>>12449144
>>12450009
>Why didn't they use 4 raptor engines instead of 3?
3 were enough for this test, 4 or 6 would be an unnecessary additional complexity. They would have needed to add a boilerplate weight or throttle down way too much.

>> No.12451100

>>12450321
What cock? What are you talking about? Why are you sucking so much cock?

>> No.12451308
File: 5 KB, 546x459, 1606166346992.png [View same] [iqdb] [saucenao] [google]
12451308

>everyone and their grandmother flipping their shit over the results of this test because the vehicle touched down a wee bit too hard with a decent speed maybe 2m/s higher than it should have been
>implying this is the first SpaceX prototype test to end in failure
>implying any aerospace development projects are seamless

Grow the fuck up doomers.

>> No.12451346

>>12446425
pretty sure they did a bunch of measurements of things so they can tweak and fix things that are beyond our outsiders understanding of the design.

>> No.12451352

>>12446474
>starliner
Starship. Starliner is the shitshow capsule that boeing is struggling with.

>> No.12451356

>>12446626
The flaps did slow it down, dummy.

>> No.12451362

>>12446721
Yeah, probes that mass no more than a couple tons. Starship will land on Mars with a dry mass + payload mass of over 300 tons.

>> No.12451368
File: 128 KB, 239x372, 1607557730349.png [View same] [iqdb] [saucenao] [google]
12451368

>>12447837

>> No.12451425
File: 107 KB, 1024x770, now i'll tell you hwat.jpg [View same] [iqdb] [saucenao] [google]
12451425

>>12447837
Do not jinx it you son of a bitch.

>> No.12451506

>>12446694
Because it is there.

>> No.12451535

>>12446474
>implying anyone suspected it was impossible to do these things
It's just a PR stunt. junkyard rocket blows up yet again

>> No.12451849 [DELETED] 

hmm

>> No.12452549 [DELETED] 

lol

>> No.12452928

>>12446694
to flee from the police. They cant get you there.

>> No.12453086

>>12446694
the space spice must flow

>> No.12455380 [DELETED] 

lol

>> No.12455709

>>12446694
Mars needs women.

>> No.12456656

>>12455709
Cringe.

>> No.12456676

>>12446710
you cant do a parachute on mars for this kind of vehicle, it has to be impractically large

>> No.12456682

>>12446726
you cant make a chute for a vehicle this size which would work on mars. its like having several football fields of chute trying to slow that thing down without getting in each others way

>> No.12456685

>>12450009
the other 3 are vacuum optimized and wont create usable thrust , and they cant gimbal

>> No.12456687

>>12449144
its easier to make 3 engines which can gimbal out of each others way when needed, not so with 4. even the space shuttle had just 3 since they could gimbal independently

>> No.12457004

>>12447865
>waste of tax payer money

Aww its retarded

>> No.12457337

>>12456685
Not only would the sea level thrust be shit but they would most likely explode from flow seperation thanks to over expantion.

>> No.12457472

>>12448232
that one was Italian

>> No.12457492

>>12446759
Is that going to be the future? Balls?

>> No.12457502

>>12457492
I see you are new to the orbital yeet train assembly, it's probably the best idea to ever come out of /sfg/.
>cheap mass produced stages
>dock them in LEO
>you now have a fuckload of delta-v to yeet shit around
>need more detla-v?
>build longer yeet train

>> No.12457534

>>12457337
They actually have tested an Rvac at sea level before on a test stand, although I don't think they had the full vacuum nozzle on it

>> No.12457540

>>12457534
Yeah, IIRC it was a shorter nozzle because of flow seperation.

>> No.12457612

>>12447837
God, can you imagine? I'm not sure what I want to see more, it blowing up on the pad, or it reaching L2 and then won't open its mirrors.

>> No.12457624

>>12457502
Would that be stable, having long train of stages all pushing on each other?

>> No.12457684

>>12457502
Do you fire the last one until it's empty then drop it and go to the next? At what length does this thing start to buckle

>> No.12457728

>>12457624
No idea, I'm sure you could get a few before flex became an issue.

>>12457684
Burn the last one until empty, drop it and light the next.

>> No.12457739

>>12446425
>green fire is cool but a bad sign

>> No.12459277 [DELETED] 

lol

>> No.12459357

Using combustion to escape the earth's gravitational pull is highly inefficient.

>> No.12460069

Kinda stupid.

>> No.12461126 [DELETED] 

rip

>> No.12461504

>>12446605
>starve your raptors or they will self cannibalize
Explain to a /sfg/ goy please
Don't cut off the fuel supply or the gas will build up and corrode the shit when you full throttle KSP style ?

>> No.12461533

>>12461504
>fuel pressure drops off a cliff
Which leads to
>engine no longer being cooled fast enough
>starts overheating
And also
>prop mix goes from balanced/slightly fuel rich to strongly oxidizing
>starts combusting with the next most reactive thing nearby
Which for Raptor is apparently copper in the injection plate.
Of course if you reach a point where this is happening then your rocket is probably beyond saving anyway, so why not keep going and make a sweet green laser?

>> No.12461534

>>12461504
>use liquid methane for regen cooling by pumping it around the nozzle
>run out of liquid methane
>no more cooling
>???
>raptor dies

>> No.12462164

>>12446694
White flight

>> No.12462275

>>12447833
It can't take off with full tanks. SN8 flew with just enough propellant to get to 12.5km and then land, anything more and it's too heavy to get off the pad. Starship is only meant to have full tanks in space where it doesn't need to fight gravity or air resistance.

>> No.12462284

>>12457502
> probably the best idea to ever come out of /sfg/
pisslocks coming through

>> No.12462294

>>12446721
Parachutes have only been used on Mars with relatively light landers. The Martian atmosphere is about 1% as dense as Earth's, so just enough that you have to deal with it but not enough that you can get by with parachutes alone to soft land. Every successful probe sent to Mars either touched down under propulsion like Curiosity or used giant airbags like Spirit / Opportunity.

>> No.12462474

>>12462284
>pisslocks
enlighten me

>> No.12463126 [DELETED] 

waste of money

>> No.12463738 [DELETED] 

>>12462474
no

>> No.12463759

>>12446694
theres an ancient civilization buried under mars, we gotta find the evidence before its too late

>> No.12464847

>>12463759
>too late

What are they gonna do?

>> No.12464857

>>12446425
Gays and trannies go to Mars.

>> No.12465004

>>12447865
I know you're shitposting but for real steel is fucking awesome in rockets

>durable
>easily weldable. Don't need expensive facilities to use it
>very repairable. Important on long journeys
>actually gets STRONGER while in extreme temperatures.
>Allows weight savings in other areas like TPS
>Cheap as fucking dirt.
>extremely corrosion resistant