/sci/ - Science & Math » Thread #12446425

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Anonymous Thu 10 Dec 06:08:08 2020 No.12446425 View Reply Original Report

Quoted By: >>12446453 >>12446474 >>12446555 >>12446605 >>12446626 >>12446750 >>12448773 >>12449035 >>12449154 >>12451346 >>12457739 >>12464857

So.

Now that the dust has settled...

What did we learn from this?

Anonymous

Anonymous Thu 10 Dec 2020 06:16:59 No.12446453 Report

Quoted By:

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

Anonymous

Anonymous Thu 10 Dec 2020 06:21:46 No.12446474 Report

Quoted By: >>12447833 >>12451352 >>12451535

>>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

Anonymous

Anonymous Thu 10 Dec 2020 06:35:17 No.12446526 Report

Quoted By:

Grain Silos are closer to space than SLS.

Anonymous

Anonymous Thu 10 Dec 2020 06:41:24 No.12446555 Report

Quoted By:

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

Anonymous

Anonymous Thu 10 Dec 2020 06:55:44 No.12446605 Report

Quoted By: >>12461504

>>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

Anonymous

Anonymous Thu 10 Dec 2020 07:00:56 No.12446626 Report

Quoted By: >>12446672 >>12451356

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

Anonymous

Anonymous Thu 10 Dec 2020 07:11:39 No.12446664 Report

Quoted By:

system failures in space rockets are dangerous

Anonymous

Anonymous Thu 10 Dec 2020 07:14:48 No.12446672 Report

Quoted By: >>12446694 >>12446710

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

Anonymous

Anonymous Thu 10 Dec 2020 07:22:01 No.12446694 Report

Quoted By: >>12446699 >>12446700 >>12446715 >>12450307 >>12451506 >>12452928 >>12453086 >>12455709 >>12462164 >>12463759

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

Anonymous

Anonymous Thu 10 Dec 2020 07:24:00 No.12446699 Report

Quoted By: >>12447838

>>12446694
To colonise the ayys and steal their shit

Anonymous

Anonymous Thu 10 Dec 2020 07:24:12 No.12446700 Report

Quoted By:

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

Anonymous

Anonymous Thu 10 Dec 2020 07:24:24 No.12446701 Report

Quoted By:

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

Anonymous

Anonymous Thu 10 Dec 2020 07:28:26 No.12446710 Report

Quoted By: >>12446712 >>12456676

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

Anonymous

Anonymous Thu 10 Dec 2020 07:29:14 No.12446712 Report

Quoted By: >>12446721 >>12446726

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

Anonymous

Anonymous Thu 10 Dec 2020 07:30:29 No.12446715 Report

Quoted By:

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

Anonymous

Anonymous Thu 10 Dec 2020 07:33:15 No.12446721 Report

Quoted By: >>12451362 >>12462294

>>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 .

Anonymous

Anonymous Thu 10 Dec 2020 07:34:29 No.12446726 Report

Quoted By: >>12448891 >>12456682

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

Anonymous

Anonymous Thu 10 Dec 2020 07:42:35 No.12446750 Report

Quoted By:

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

Anonymous

View Same Google iqdb SauceNAO 1594432726728.png, 788KiB, 1166x1650

Anonymous Thu 10 Dec 2020 07:47:43 No.12446759 Report

Quoted By: >>12447900 >>12457492

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

Anonymous

Anonymous Thu 10 Dec 2020 10:20:18 No.12447176 Report

Quoted By:

dumb

Anonymous

Anonymous Thu 10 Dec 2020 11:03:59 No.12447304 Report

Quoted By:

hmm

Anonymous

Anonymous Thu 10 Dec 2020 14:10:08 No.12447829 Report

Quoted By:

hmm

Anonymous

Anonymous Thu 10 Dec 2020 14:11:56 No.12447833 Report

Quoted By: >>12462275

>>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.

Anonymous

View Same Google iqdb SauceNAO Ariane_5_liftoff_on_flight_VA233 (...).jpg, 506KiB, 1920x2880

Anonymous Thu 10 Dec 2020 14:13:07 No.12447837 Report

Quoted By: >>12447903 >>12451368 >>12451425 >>12457612

post yfw this bad bitch destroys the JWST

Anonymous

Anonymous Thu 10 Dec 2020 14:13:28 No.12447838 Report

Quoted By:

>>12446699
This.

Anonymous

Anonymous Thu 10 Dec 2020 14:29:46 No.12447865 Report

Quoted By: >>12447883 >>12457004 >>12465004

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

Support the SLS. Support progress and tradition.

Anonymous

Anonymous Thu 10 Dec 2020 14:39:54 No.12447883 Report

Quoted By:

>>12447865
orange rocket bad

Anonymous

Anonymous Thu 10 Dec 2020 14:45:42 No.12447900 Report

Quoted By:

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

Anonymous

Anonymous Thu 10 Dec 2020 14:46:27 No.12447903 Report

Quoted By: >>12448232

>>12447837
Fucking frogs better not fuck this up.

Anonymous

Anonymous Thu 10 Dec 2020 16:22:18 No.12448232 Report

Quoted By: >>12457472

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

Anonymous

Anonymous Thu 10 Dec 2020 18:27:28 No.12448748 Report

Quoted By:

lol

Anonymous

Anonymous Thu 10 Dec 2020 18:32:26 No.12448773 Report

Quoted By: >>12449144 >>12450024

>>12446425
raptors are a shit engine

Anonymous

Anonymous Thu 10 Dec 2020 18:43:25 No.12448831 Report

Quoted By: >>12448880

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

Anonymous

Anonymous Thu 10 Dec 2020 18:48:55 No.12448880 Report

Quoted By: >>12448886 >>12448916 >>12450333

>>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...

Anonymous

Anonymous Thu 10 Dec 2020 18:49:58 No.12448886 Report

Quoted By:

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

Anonymous

Anonymous Thu 10 Dec 2020 18:50:51 No.12448891 Report

Quoted By:

>>12446726
No, just cheaper

Anonymous

Anonymous Thu 10 Dec 2020 18:54:22 No.12448916 Report

Quoted By: >>12448949

>>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.

Anonymous

Anonymous Thu 10 Dec 2020 19:00:02 No.12448949 Report

Quoted By:

>>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.

Anonymous

Anonymous Thu 10 Dec 2020 19:14:40 No.12449035 Report

Quoted By:

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

Anonymous

Anonymous Thu 10 Dec 2020 19:37:20 No.12449144 Report

Quoted By: >>12450009 >>12450461 >>12456687

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

Anonymous

Anonymous Thu 10 Dec 2020 19:39:24 No.12449154 Report

Quoted By:

>>12446425
starships make the best 'splosions

Anonymous

Anonymous Thu 10 Dec 2020 22:31:26 No.12450009 Report

Quoted By: >>12450461 >>12456685

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

Anonymous

Anonymous Thu 10 Dec 2020 22:34:24 No.12450024 Report

Quoted By:

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

Anonymous

Anonymous Thu 10 Dec 2020 23:35:21 No.12450307 Report

Quoted By:

>>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.

Anonymous

Anonymous Thu 10 Dec 2020 23:37:29 No.12450321 Report

Quoted By: >>12451100

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

Anonymous

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Anonymous Thu 10 Dec 2020 23:39:17 No.12450333 Report

Quoted By:

>>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).

Anonymous

Anonymous Fri 11 Dec 2020 00:11:49 No.12450461 Report

Quoted By:

>>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.

Anonymous

Anonymous Fri 11 Dec 2020 02:46:19 No.12451100 Report

Quoted By:

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

Anonymous

View Same Google iqdb SauceNAO 1606166346992.png, 5KiB, 546x459

Anonymous Fri 11 Dec 2020 04:08:52 No.12451308 Report

Quoted By:

>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.

Anonymous

Anonymous Fri 11 Dec 2020 04:19:55 No.12451346 Report

Quoted By:

>>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.

Anonymous

Anonymous Fri 11 Dec 2020 04:21:21 No.12451352 Report

Quoted By:

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

Anonymous

Anonymous Fri 11 Dec 2020 04:22:23 No.12451356 Report

Quoted By:

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

Anonymous

Anonymous Fri 11 Dec 2020 04:23:36 No.12451362 Report

Quoted By:

>>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.

Anonymous

View Same Google iqdb SauceNAO 1607557730349.png, 128KiB, 239x372

Anonymous Fri 11 Dec 2020 04:24:38 No.12451368 Report

Quoted By:

>>12447837

Anonymous

View Same Google iqdb SauceNAO now i'll tell you hwat.jpg, 107KiB, 1024x770

Anonymous Fri 11 Dec 2020 04:42:20 No.12451425 Report

Quoted By:

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

Anonymous

Anonymous Fri 11 Dec 2020 05:11:36 No.12451506 Report

Quoted By:

>>12446694
Because it is there.

Anonymous

Anonymous Fri 11 Dec 2020 05:19:43 No.12451535 Report

Quoted By:

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

Anonymous

Anonymous Fri 11 Dec 2020 07:55:43 No.12451849 Report

Quoted By:

hmm

Anonymous

Anonymous Fri 11 Dec 2020 13:57:40 No.12452549 Report

Quoted By:

lol

Anonymous

Anonymous Fri 11 Dec 2020 15:43:14 No.12452928 Report

Quoted By:

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

Anonymous

Anonymous Fri 11 Dec 2020 16:17:14 No.12453086 Report

Quoted By:

>>12446694
the space spice must flow

Anonymous

Anonymous Sat 12 Dec 2020 02:15:03 No.12455380 Report

Quoted By:

lol

Anonymous

Anonymous Sat 12 Dec 2020 04:38:27 No.12455709 Report

Quoted By: >>12456656

>>12446694
Mars needs women.

Anonymous

Anonymous Sat 12 Dec 2020 13:30:18 No.12456656 Report

Quoted By:

>>12455709
Cringe.

Anonymous

Anonymous Sat 12 Dec 2020 13:37:23 No.12456676 Report

Quoted By:

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

Anonymous

Anonymous Sat 12 Dec 2020 13:39:03 No.12456682 Report

Quoted By:

>>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

Anonymous

Anonymous Sat 12 Dec 2020 13:41:38 No.12456685 Report

Quoted By: >>12457337

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

Anonymous

Anonymous Sat 12 Dec 2020 13:43:20 No.12456687 Report

Quoted By:

>>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

Anonymous

Anonymous Sat 12 Dec 2020 15:58:40 No.12457004 Report

Quoted By:

>>12447865
>waste of tax payer money

Aww its retarded

Anonymous

Anonymous Sat 12 Dec 2020 18:04:44 No.12457337 Report

Quoted By: >>12457534

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

Anonymous

Anonymous Sat 12 Dec 2020 18:46:16 No.12457472 Report

Quoted By:

>>12448232
that one was Italian

Anonymous

Anonymous Sat 12 Dec 2020 18:53:09 No.12457492 Report

Quoted By: >>12457502

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

Anonymous

Anonymous Sat 12 Dec 2020 18:57:56 No.12457502 Report

Quoted By: >>12457624 >>12457684 >>12462284

>>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

Anonymous

Anonymous Sat 12 Dec 2020 19:08:35 No.12457534 Report

Quoted By: >>12457540

>>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

Anonymous

Anonymous Sat 12 Dec 2020 19:10:26 No.12457540 Report

Quoted By:

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

Anonymous

Anonymous Sat 12 Dec 2020 19:29:58 No.12457612 Report

Quoted By:

>>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.

Anonymous

Anonymous Sat 12 Dec 2020 19:33:57 No.12457624 Report

Quoted By: >>12457728

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

Anonymous

Anonymous Sat 12 Dec 2020 19:53:55 No.12457684 Report

Quoted By: >>12457728

>>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

Anonymous

Anonymous Sat 12 Dec 2020 20:08:03 No.12457728 Report

Quoted By:

>>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.

Anonymous

Anonymous Sat 12 Dec 2020 20:13:22 No.12457739 Report

Quoted By:

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

Anonymous

Anonymous Sun 13 Dec 2020 06:20:04 No.12459277 Report

Quoted By:

lol

Anonymous

Anonymous Sun 13 Dec 2020 06:58:42 No.12459357 Report

Quoted By:

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

Anonymous

Anonymous Sun 13 Dec 2020 13:24:05 No.12460069 Report

Quoted By:

Kinda stupid.

Anonymous

Anonymous Sun 13 Dec 2020 18:48:39 No.12461126 Report

Quoted By:

rip

Anonymous

Anonymous Sun 13 Dec 2020 20:42:59 No.12461504 Report

Quoted By: >>12461533 >>12461534

>>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 ?

Anonymous

Anonymous Sun 13 Dec 2020 20:54:50 No.12461533 Report

Quoted By:

>>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?

Anonymous

Anonymous Sun 13 Dec 2020 20:54:57 No.12461534 Report

Quoted By:

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

Anonymous

Anonymous Mon 14 Dec 2020 00:42:00 No.12462164 Report

Quoted By:

>>12446694
White flight

Anonymous

Anonymous Mon 14 Dec 2020 01:25:52 No.12462275 Report

Quoted By:

>>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.

Anonymous

Anonymous Mon 14 Dec 2020 01:28:36 No.12462284 Report

Quoted By: >>12462474

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

Anonymous

Anonymous Mon 14 Dec 2020 01:32:27 No.12462294 Report

Quoted By:

>>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.

Anonymous

Anonymous Mon 14 Dec 2020 02:23:36 No.12462474 Report

Quoted By: >>12463738

>>12462284
>pisslocks
enlighten me

Anonymous

Anonymous Mon 14 Dec 2020 06:54:41 No.12463126 Report

Quoted By:

waste of money

Anonymous

Anonymous Mon 14 Dec 2020 11:32:32 No.12463738 Report

Quoted By:

>>12462474
no

Anonymous

Anonymous Mon 14 Dec 2020 11:38:42 No.12463759 Report

Quoted By: >>12464847

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

Anonymous

Anonymous Mon 14 Dec 2020 18:38:00 No.12464847 Report

Quoted By:

>>12463759
>too late

What are they gonna do?

Anonymous

Anonymous Mon 14 Dec 2020 18:40:26 No.12464857 Report

Quoted By:

>>12446425
Gays and trannies go to Mars.

Anonymous

Anonymous Mon 14 Dec 2020 19:19:24 No.12465004 Report

Quoted By:

>>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

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