/sci/ - Science & Math

>RETURN OF THE SUPER HEAVY LIFT
I can't wait
wonder what the fuck they're up to down in Boca Chica
there's only two residents left, right?

>>11287315

>>11287327
>Aerojet Rocketdyne
Just applied for some jobs with them. I'm betting on them wanting some new blood after failing to get a Vulcan contract.

>>11287326
I think only one now

>>11287327

>>11287327
>>11287334

>>11287333
it's Nomadd and Mary left, I think

>>11287335
>grabbing it by the SRB mounting points
ah, I see

>>11287327
>>11287334
>>11287335

>>11287315
Reminder that martian cities will resemble large martian regolith termite mounds

>>11287347
>>11287335
>>11287334
>>11287327
It's time to deliver.

>>11287369
Yes, their delivering CS-1 to Stennis via barge for it’s “Green Run” test.

>>11287367
termites are so cool

>>11287377
We could build robots that turn regolith into building material and act as a swarm intelligence to build and maintain a city before the colonists get there
Swarm intelligence is the future of space construction

>>11287339
As far as I know she sold.

>>11287412
no, Marie Pointer sold

So uh Elon is having another kid it seems
2020 is crazy

>>11287477
i don't see this anywhere, why did you even post this

>>11287477
Does Elon time apply to pregnancies?

>>11287485
Grimes

>>11287315
When is the next starship hop?

>>11287487
>being pregnant for 17 months
Oof.

>>11287490
first they have to blow up the 'egg' (we think)

>>11287489
I didn't think they were still together

SpaceX should do a lunar rock return mission. Funded by auctioning off the returned rock and dust.

Start bidding at $50,000 per gram. A 4 to 5 kilo return should pay for expendable Fheavy launch and the lunar lander.

>>11287511
I don't think you need an expendable falcon heavy to do that

>>11287505
They are, they were at a cyberpunk 2077 eve t as a couple recently.

>>11287548
Bigger lander, bigger return vehicle, more$

>>11287556
two cores downrange is the best bang for the buck, I think

>>11287505
They are, and he might have gotten her pregnant

Absolute chad

>>11287563

>>11287563
>>11287569

>>11287563
psyciatrist: orange rocket can't hurt you
orange rocket:

>2 more starlink launches planned this month
How likely are these to happen?

>>11287619
I'm predicting one more Starlink launch

I have a short-notice phone interview with NASA for an engineering position. Got a call out of the blue today, interview is tomorrow. Any idea how I should prepare?

>>11287637
drink plenty of water, get plenty of sleep, eat well, brush your teeth and shower

>>11287549
Kek /mu/ must be seething, Grimes is like their communal waifu

>>11287637
Review your materials. Make sure that your best clothes are clean and ready. Follow what >>11287642 said. NASA must be very interested in you by asking for an interview all of a sudden. Good luck!

>>11287493
we're bringing in a team to work on her night and day and think we can can this down to ten months

>>11287315
>listing starship despite it just doing some flight test
>list SLS despite it only doing static fires

>>11287686
Elon is on record with full up orbital Starship Super Heavy tests later this year

starship graveyard

noice machine, Miller do good work
I'm a fan of ESAB because they're local

>>11287663
Gestation process is being iteratively improved, expect several orders of magnitude improvement in gestation time by the end of 2021

>>11287637
Sit down with a friend or relative and make them ask you some typical interview questions. Or stand in front of a mirror and play pretend. Why us? Why you? Strengths, weaknesses. Prior experience. All that repetetive nonsense. Practice the basic questions once or twice.

>>11287689
Hmm. We‘ll see. Shitton of chances for it to slip.

>>11287663
If progress continues to be exponential, we might be seeing human birth by the end of next month.

>>11287712
Come to think of it, since this is on the phone, you might as well write this shit down.

>>11287663
Is Starwomb really as revolutionary as what Elon and BirthX says so?

>>11287637
Wear blackface so you get hired under affirmative action.

>>11287315
>As of 2019, the maiden launch of SLS is expected in 2021.
Why is SLS even listed here?

>>11287908
It would probably be easier to claim to be a part of LGBT, unless there's no affirmative action for them?

>>11287919
What about Artemis 3 through 8 is SLS going to kill?

>>11287925
SLS needs to launch multiple times to get all of the equipment for each Artemis mission (a total of 6 launches are needed for a mars mission with only a capability of 2 a year according to NASAs best estimates). A single failure (which has been estimated by Doug Cooke to be an 80% chance over the complete launch assembly process) spells disaster for the entire mission and will require NASA to either delay, kill or submit to a commercial option capable to lift that kind of payload and in the process reveal the true cost overruns of such an outdated system.

>>11287966
>A single failure (which has been estimated by Doug Cooke to be an 80% chance over the complete launch assembly process)
Source? How did he derive that?

>>11287966
SLS will not be launching all of the equipment for every Artemis mission, it's only launching the people
everything else is going up on commercial options

>>11287966
>SLS needs to launch multiple times to get all of the equipment for each Artemis mission (a total of 6 launches are needed for a mars mission with only a capability of 2 a year according to NASAs best estimates).

What are you talking about? Each Artemis mission requires a single SLS launch to get Orion/the astronauts to the Gateway, the rest of the architecture (Gateway, HLS etc) is launched in segments by smaller, commercial rockets. Also, Artemis has nothing to do with Mars: all the known Artemis missions are destined for the Moon and NASA hasn’t disclosed any potential Mars architecture.

>>11287315
>more fucking robots to mars

JUST SEND PEOPLE FFS RREEEEEE

>>11287969
By 80% I meant a success chance of 80% and I completely misheard it.. thats Apollos mission success rate.. SLS/Artemis has a 51% success chance. It was talked about in a hearing called "Hearing: Developing Core Capabilities for Deep Space Exploration"
https://youtu.be/BnFj67C0G6I?t=1h12m30s

Basically in Cooke's article 'getting back to the moon requires speed and simplicity' Cooke states:
1. NASA is breaking the lander deliberately into multiple pieces to feed contractors
2. NASA's current approach requires on average 8 launches VS a single Apollo launch
3. NASA's approach has 51% chance for an overall mission success. Not taking into account the launch vehicle maturity risk.

>>11287978
Might want to look at the Artemis support missions m8, enjoy realizing how fucked the system is.

>>11287989
meh, commercial launches are cheap, that's not an issue

>>11287987
We're too pussy right now to send people

>>11287987
The best groups to send people there can barely (or is unable to) send people into LEO. It's going to take some time to build up the industrial and knowledge base to send people to Mars.

>>11288029
Elon Musk is launching people to Mars this year

>>11288031
No? The first proper SS+SH launch is going to be on 2021 IIRC.

>>11288034
You might be a Boeing/NASA shill and unable to comprehend this but SpaceX has already left you behind. Seeth more

>>11288034
There's no current official timeline right now but the last twitter quote on the subject from Elon is prototypes in orbit this year so they can start testing EDL and orbital refueling

>>11288044
>prototypes in orbit this year
I have doubts considering that SpaceX has always went a little over previous optimist timelines, but since Mk1 was put to together pretty quickly it might happen at the end of this year IMO.

Also, has any prototypes for Superheavy been started yet? I know it's simpler than Starship, but getting the harmonics of 30+ engines together worked out would seem to be important.

>>11288067

>>11287987
Still can't get them back from Mars' surface.

>>11288140
Sure we can. Use rocket. Rocket is mature technology.

>>11288142
Got to land a rocket big enough to carry fuel to get back to orbit.

>>11288147
>uses ISRU behind you
nothing personnel kid

>>11288151
>isru
>first mission
Lol

>>11288155
Better start somewhere.

>>11288155
>first mission
>carrying humans
Lol
Send Starship, do ISRU unmanned, send people.

>>11288159
That means sending storage tanks. So their is a enough to get back, before ever sending people. Because the first missions will be under a month on the ground.

>>11288164
>Land empty starship on Mars
>Guys, do we have tanks????111??

>>11288164
Retard
Starship holds enough propellant to fill a Starship

>Anon! We're going to mars, pack your things!
What do you bring?

>>11288249
Indian food.
That way I can fart the whole ride there. And there will be no escape, no opening windows, nothing!
They'll just have to live in my smell.

>>11288262
Being in zero gee is like having a cold. You cant smell so your efforts will be in vain.

>>11288275
You can smell in the pressurized space ship.

>>11288147
>Got to land a rocket big enough to carry fuel to get back to orbit.

That’s Starship. It uses ISRU to create new propellant and then leaves

>>11288283
Ah yes, but ISRU allows for propellant depots. Such communist things shouldn't be allowed in space lest we feel the wrath of Shelby.

>>11287699
>>11287718
>>11287724

Kek

>>11288031
Is there any reason to send people there right now? Only merit I can see is to do it as a PR/political stunt, because at this point there is barely any real motive for a human to go there (e.g. no infrastructure or equipment that really requires a human).

>>11288346
>Is there any reason to send people there right now?

Bring back samples, perform other experiments like growing plants in real Martian regolith, see how the human body reacts to the gravity conditions, etc. It’s at minimum at least as worth doing as Apollo

>>11288181
But just barely.

>>11287487
He's having two competing pregnancies in California and in Texas to see which one will finish first.

>>11288262
>Indian food.
>That way I can fart the whole ride there. And there will be no escape, no opening windows, nothing!
>They'll just have to live in my smell.
Haven't you heard? During the journey all methane-dense flatus must be evacuated into the new B.R.A.A.A.P. module for processing into propellant

>>11288249
that's a very nice render

>>11287326
Quick rundown on this whole residents affair?

>>11288626
>its the year 2045
>The only rocket fuel in use is literally farts
>there is nothing more to say

>spaceX lands on mars first
>has assassins silently kill every jew that lands there later
>years pass with no jooz
>racial relations are perfect
>women become trad again
>elons face when

>>11288822

>>11288822
>first order of business on mars
>have designer cat girls
>engineer >140 iq girls
>nuke earth and make it an automated farming planet

>>11288839
AWWWW BOO HOOO stfu

>>11288956
>AWWWW BOO HOOO stfu

>https://twitter.com/nextspaceflight/status/1215125251471765504
>Starship tank will now go under pressure tests to find failure points.
Neat.

so I'm assuming this is just a test tank? they will pop this one and then move on to the real vehicle when they like the build quality?

>>11289006
Depends on how high the failure points are. If its way above margins, then it could be reused. Otherwise, they might just test it to full fail mode.

so the mystery team from the other day is Dynetics? Do they have a chance of competing against SpaceX/Blue Origin/Boeing for the Lunar lander?

>>11289009
>Dynetics is based in Huntsville AL
nvm Shelby gots their back so they are going to be competitive. I wonder if we'll see both BO and Dynetics make the final cut just because they are in Alabama.

Eastern Range can only support up to 48 launches a year right? We're going to need to increase that number if SpaceX is going to be launching so often.

>>11289023
Boca

>>11288977
>still thinking we like ZOGnald trumpenstein
Dilate further, tranny.

>>11289009
>>11289013
Dynetics is a weird one for HLS, they usually act as subcontractor providing small but important and expensive parts for bigger assemblies e.g. missile seekers, ignition systems, hypersonic glide vehicles etc. They also provide a lot of IT services and software for the US military. Dynetics often partners with Aerojet, so maybe they’ll be involved in the bid?

>>11289028
>admitting you were dumb enough to fall for his bullshit in the first place
Thanks for confirming my suspicion.

>>11288277
This is all hearsay but what I had come to understand was that the weightless environment allowed fluid and mucus to collect in the sinuses, blocking up the sense of smell like having a cold. This was reinforced by an interview with an astronaut who was asked about bathing in space. In the way to the answer, the 'naut said that no one can really smell anyway so one of they dreads of spaceflight is experiencing the funk of the capsule after having landed. This was an older 'naut though and I believe he was talking about the Apollo missions.... Its all very suspect in my memory, though. I seem to recall that they talked about pooping in space, too, though that may have been another interview.

>>11289032
>Dynetics often partners with Aerojet, so maybe they’ll be involved in the bid?
It's possible. BO is teamed up with Lockheed on the project, so Dynetics might have their own partners too.

>>11288822
They better fire up the separatist movement before the de-colonization diversity quotas mandated by the UN really kick in.
Then they can wait out the storm back on Earth and do whatever the fuck they want.

>>11289062
Dynetics building the software and systems, whilst AJR provides the engines would be a decent combo, considering the former’s experience with complex software/systems and the latter has a lot of experience building engines for landers.

>>11289002
I mean, that‘s what they did last time. I‘m guessing they‘re gonna be a bit more gentle about it now.

>>11289041
We memed him just to piss faggots like you off

>>11289192
This layout still pisses me off because it assumes 1g.

>>11289234
how do you think it should be designed. what will be the optimum way to survive a minimum of 80 days in open space?

>>11289243
first of all you don't waste space by building 2.4m high rooms

>>11289280
is it a waste, or investment in morale?

>>11289192
>sucking Israeli cock to own the libs!
Yep, you sure showed me

>>11289293
>>11289192
>>11289028
>>11288977
>>11288956
>>11288839
>>11288822
Please stop, I want to learn about upcoming spaceflight missions not watch you retards shitpost one another over meaningless nonsense.
Tell me about ESA's little rover /sfg/, what does it hope to do?

>>11289304
https://en.m.wikipedia.org/wiki/Rosalind_Franklin_(rover)

>>11289175
>>11289062
>>11289032
>>11289013
>>11289009
Apparently Dynetics have partnered up with Sierra Nevada (the people behind Dream Chaser) for HLS.

https://twitter.com/jeff_foust/status/1215354130639683584

Whats the nsf of discord? Where's all the legit space discussion? Twitter aint doing it for me. NSF is fine but discussion can take awhile.

>>11287691
Hmmm this new Fallout 5 screenshot looks so realistic

>>11288159
Elon's plan of record is test EDL and landing unmanned, probe for water with the first wave of cargo ships, then land people and have them set up ISRU to send empty Starships back home along with any criminals, dissenters, or people who have had enough

>>11288249
gun, computer, reloading supplies

I have a interview with Blue Origin coming up soon. Any tips or things I need to be aware of?

>>11288703
SpaceX are buying up all the land in Boca Chica village next to their launch site so that they can launch without the FAA breathing down their necks
everybody has sold, except for one retired old man who just wants to look at rockets and a crazy lady who's getting internet famous off of taking pictures of rockets
they are known as Nomadd and BocaChicaGal online, Nomadd is a cool dude, respect him
>>11289002
>just building and blowing up test articles until they get it nailed down
bravo, this is the sort of shit I wake up for

>>11289013
yeah, I see it
if Starship starts doing lunar cargo services they might get on-ramped to the human lander services

>>11289584
make sure you call Jeff a bald manlet for me

>>11289584
No. Why are you even asking questions about that on a Mongolian Basket weaving forum?

>>11289646
Because I don't know anyone personally who have worked with Blue Origin, and I figured that at least one person here has.

>>11289584
BO was created to make a place for the elite to live off planet while they exterminate the plebs.

>>11289653
That's common knowledge. Come with some useful input dumbass.

>>11289539
>Where's all the legit space discussion?
In this thread you cock gobbling mong.

>discshit
KYS

>>11289584
>>11289647
Memorise this Wikipedia page:

https://en.m.wikipedia.org/wiki/Gerard_K._O%27Neill

>>11289700
why didn't he have a better barber?

>>11288249
Something like an original edition of Tintin on the Moon

>>11288262
Martian food will probably be vegetarian for some time, and since Indian food is more or less semi-vegetarian already and spices aren't heavy, I wonder if Indian food will be the go-to food in the early years

>>11289636
Thanks

>>11289733
interplanetary spice trade, here we come!

>>11289653
Wait, I thought they wanted to shoot the plebs into space to do labor?

>>11289823
yes, but very tightly controlled plebs

So do Boeing need to do an Inflight abort test as well?

>>11289850
no, they did a pad abort, said, "see, our engines and parachutes work", and then did a bunch of paperwork that said that they knew what they were talking about

>>11289850
No, SpaceX chose to do it instead of extra simulations, it was never a requirement. Also, Atlas 5’s are expensive and limited to blow up.

>>11289855
How expensive is an Atlas V core exactly? Like, how much does it cost to make one?

>>11289860
1 bajillion dollars

>>11289860
I don’t think the cost to build has ever been stated, but the lowest priced Atlas 5 variant goes for $109 million a pop. Which is not that expensive, but RD-180s are in limited stock so ULA would be reticent to chuck them away so flagrantly.

>>11287315
>Satellite internet

Alternative title: Elon"s light pollution extravaganza

The real kick in the crotch is that, when interviewed about the effects this would have on astronomy, Musk said everyone is going into space with their telescopes anyway. And now they'll have to launch more space telescopes to replace the ground-based telescopes rendered useless and they'll pay Elon for the launch too. Fuck you Elon. Fuck you.

>>11289910
He's winning, and there's nothing you can do to stop him

>>11289910
>Elon"s light pollution extravaganza
It's only bad for amateur astronomers and long exposure astronomy. For the average person, city light pollution is much worse than Starlink.

>The real kick in the crotch is that, when interviewed about the effects this would have on astronomy, Musk said everyone is going into space with their telescopes anyway.
He's right though. The future of professional astronomy is space telescopes. There's a reason why JWST is such a big deal and why Hubble had a large backlog.

>And now they'll have to launch more space telescopes to replace the ground-based telescopes rendered useless and they'll pay Elon for the launch too. Fuck you Elon. Fuck you.
No. There are other launch providers some of which offer services that SpaceX can't do (at least for now).

>>11289914
> Implying that I have some personal grudge against Elon Musk and that I have an emotional need for him to fail
>Implying I would give a fuck about Elon if he wasn't ruining astronomy with his satellites

>>11289921
there's nothing anybody can do to stop him now, anon
he's too powerful
soon, he will escape our gravity well and rule the solar system

>>11289881
Which is nearly double of what a new Falcon 9 is if we're just looking at pricing. So what's SpaceX doing differently that's making their rockets cheaper? (assuming that there isn't some significant markup for either companies)

>musk is emperor of the solar system
>grimes is empress
lets go back to 2019 already

>>11289934
well, they make all of their engines in-house, instead of supporting the Russian spaceflight industry
they only have facilities in three states, instead of however many ULA supports
also they're privately held, instead of needing to shell money out to daddy Lockheed and momma Boeing
and they don't need to move any large explosives/fireworks, I mean, solid rocket motors

it's gonna pop

>>11289952
what do they do after the pop? more pops?

>>11289952
yeah but on purpose this time

>>11289958
god willing

>>11289961
then when do they actually start building starships again? hops when???

>>11289965
dunno, I love watching BLEVE bombs so I'm going to complain

>>11289949

>>11289910
You can really hear the onions and fragility in people who just impotently repeat "fuck you fuck you fuck you" when they're trying to make a point

>>11287663
Kek

>>11287334
Just another day at the dildo factory

>tfw no 1980s space force
https://www.youtube.com/watch?v=PIHSxLYzc6Q

will
a) starship make orbit
b) Musk-c baby be born
first?

https://careers.dynetics.com/job-view.php?p=6011

>>11290302
Baby first but it'll be close

>>11290308
what fucking timeline did we enter into anyways

>>11290314
I don't know but it's wild

starship egg livestream https://www.youtube.com/watch?v=QKdLOCGh5aY

>>11290320
boomtime?

>>11290320
>bopper
Wait what? What's this for?

the holy hand grenade of Starship

>>11290329
>>11290302
When's Elon going to announce PopcornX?

>>11289937
There is a reason why the future leaders of Mars will be called the "Elon".

>>11290332
SpaceX better not forget the secret sauce

>>11290328
they're not sure if they can build pressure vessels in a field (with fancy welding machines this time) so they built a small one and now they're going to blow it up

bunch o' jobs for Boca Chica are up.
https://www.spacex.com/careers/list?location%5B%5D=1356
apply away, anons. Make daddy elon proud

>>11290362
>https://www.spacex.com/careers/list?location%5B%5D=1356
nice find. Support Technician (Starship) would sound so badass on a resume

>>11290373
sounds like "professional gopher" desu
I think I'm qualified lol but I don't have the job history to make myself attractive

>>11290382
on the other hand, they pay low so you might have a shot. especially if you ever worked in a server room

>>11290418
I worked in a shipyard

>>11290362
>Food Services Specialist

JEEZUS
FUCKING
CHRIST
https://youtu.be/WKpqoOe8lws
JOEY B IS JOINING THE BIG LEAGUES WITH A LIQUID BIPROP ROCKET (LOX/METHANOL)

>>11290314

When they gonna blow this shit up nigga

>>11290275
>pew pew pew
Well at least they got one thing right, no recoil from a laser, but plenty when it makes things go pop.

so are we really going to recruit space force candidates like we do the other branches? Or are we just going to take the best we have from other branches and move them over when needed.

>>11290423
someone needs to post the taco truck webm

>>11290489

>>11290492
Nah the one with the noodles and doritos m8

>>11290492
How does he get out of the eggfort, launch-abort tower?

>>11290510
why would you ever need to leave

>>11290362
So depressing looking at all those fabrication jobs I have the experience for but fucking ITAR man

alright i wanna talk about the space force.
Realistically, what can we expect from the space force come 2025.

>certain bases will be designated space force bases
>ROTC will be available at certain universities
>Most enlisted men will be taken from Air force/Navy enlisted rather than recruiting/training at a dedicated space force boot camp
>At minimum there will be a independent launch system designed specifically for the space force in development if not operational
>the amount of soldiers (spacemen?) will be over 25,000
>The space force will train there own astronauts because...
>NASA will use the space force as their main recruiting ground for astronauts, rather than the air force/navy.

>>11290536
space force will just be a bunch of desk jockeys running the satellite tracking system and the space launch system acquisitions for the military

>>11290513
A man can't live on eggs alone, once in a while he must stretch his legs and leave the eggfort for egghorizons unknown.

>>11290536
Die for Israel and world police in space edition

>>11290536

The military has had a space program for seventy years now. It procures and operates communication and photo and radar imaging satellites. Space Force is those activities renamed.

China copying the Dragon shape for their lunar capsule bodes well for a future Starship copy.

>>11290568
But again, they can't into metallurgy

>>11290588
This is a false premise. The reason most Chinese metals are dogshit is because of the lack of oversight and quality control. They can produce as good a metal as anyone else if the state is leaning on the producers. As far as advanced metallurgy like raptor components goes, do you think its some kind of magic where you need decades of experience like some fucking samurai sword maker? All it takes is one well placed Chang with a USB drive.

>>11290597
you'd think that, but ULA never managed to make an RD-180 that worked despite all their efforts and the help of the guys who make it

>>11290588

a 98% RD-180 or 95% Raptor first stage engine and a hydrogen isp second stage engine should be good for something two stage reusable, i would hazard a guess. They don't need to beat SpaceX's prices, they just need to build a system that moves them forward to getting better value and much better space access.

On China, the limiting factor for them is their capped total spending. ie, their space activities don't get a blank check, they get a certain amount of funding and it's not huge huge.

>>11290600
ehhhh, commonality of engine on both stages
kerolox on both stages, two stages to orbit, fully reusable
launch from the mountains and land the booster in a village on purpose

>>11290598
So they could make a RUD-180?

>>11290598

They didnt need to, they could keep buying from Russia because Russia want to sell and ULA wants to buy. Making their own would be an upfront several million dollars outlay.

To replace RD-180 with a domestic, perfect duplication is not required. A 98% RD-180 would suffice. The Rocketdyne AR-1 or whatever is for all intents and purposes a domestic RD-180. Rocketdyne could make a domestic comparable at any point, the economics of spending hundreds of millions didnt really demand it because of point 1 of Russia wanting to sell and ULA wanting to buy.

Vulcan is a domestic RD-180 replacement project undertaken by ULA. They went with *entire different engine plus stage* option because of its particular merits at that juncture..

>>11290614

*upfront several hundreds of millions of dollars outlay

>>11290598
They have also taken decades to piece together some shuttle bits into one rocket so yeah....

>>11290620
no, that's Boeing
Boeing is NOT ULA, they are separate

>>11290620

Different company branches. ULA is their own self contained corporate structure with lineage from military space rocket programs.

>>11287485
>>11287489

>>11290624
It's like he's trying to smuggle spare genomes into his colony plans

>>11290639
>He posts the edited version

Original pic related

>>11290621
>Boeing is NOT ULA, they are separate
Stop posting this garbage every time someone implies ULA is run by Boeing, it is. Lockheed Martin owning the other half is irrelevant.

>>11290652

ULA is Boeing's bitch. Separate employees.

>>11290652

Let me put it this way. The difference between the Shuttle-SLS Boeing and ULA is such that in the 2000s the former treated the latter as if they were SpaceX and tried to deny them any place in human spaceflight program to keep everything tied up around shuttle hardware and not any competitive system, even if they had some measure of common corporate involvement. They were two separate ecosystems with minimal interaction.

>>11290597
There are a lot of semi-magic know-how and trickery when it comes to producing parts working at or even beyond the physical limits of materials they're made of. Last time I heard China still couldn't make a fully functional copy of Russian jet engine for their planes and had to buy them despite having more than enough samples on hand

POP IMMINENT
sheriff is clearing the road

>>11290588

They're best buddies with Russia, they could look at the Engines R Us catalog.

>>11290675
making metals that can resist hot oxygen-rich supercritical fluids is absolutely a black art

>>11290667
The parent company of ULA is Boeing alone, not Lockheed Martin. Boeing owns the majority of stake in the company and decides everything they do. Even if there are historical differences between the two, they are one entity now, the only difference is branding and it being a private company instead of public.

I have no idea why you or that one person appear to be making the same comment over and over again implying there's some great difference between the two every time anyone even slightly implies some association between the two. I see the 'ULA is not Boeing' line all the time.
>>11290681
Knock knock, open up the door, it's real
With the non-stop, pop pop of stainless steel

>>11290648

>>11290694

Familiarity with the issue. Two separate corporate cultures. Not saying ULA is some perfect thing.

There was a board meme here a few years ago putting ULA as the face of everything and the central bad guy.

>>11290682
>They're best buddies with Russia
Not when it comes to high-end tech that Russia is increasingly reliant on to support its economy. Russia is pissed that China stole a huge part of their weapons export market.
>https://asia.nikkei.com/Politics/International-relations/Russia-up-in-arms-over-Chinese-theft-of-military-technology
Turbines and rockets are some of the few things left that China hasn't figured out.

>>11289934
Wasn‘t this supposed to be the core that took a swim after the gridfins failed?
Or did they change that plan.

>>11290725
no, I think this is one of the boosters that's flown four time

Look, humans haven't gone past LEO for 50 years. Imagine going back to someone in 1970 and trying to explain that to them. We aren't going back any time soon because the goals of our society do not align with spending money on it. Enjoy your 30 flavors of mountain dew, 70% administration costs on health insurance, and telecom monopolies and pipe down.

>>11288249
1,000 yards of 150 lbs strength fishing line
A pair of scissors
A zippo lighter
A couple bottles of super glue
A knife
A dictionary
A bible
A clarinet
A flute
A miniture piano with 3 sets of backup Piano wire

>>11290744
that's... an assassin setup

Why do some rockets have diameters that step down like the Saturn V and others like Falcon 9 don’t?

>>11288249
Drugs, alcohol, cigarettes, rubbers, and a telescope

>>11290684
And it's not even half of the deal. They use a special cooling method to produce a monocrystalline turbine blade with a special directional structure that, when combined with a special active cooling channel geometry, allows it to work for thousands of hours without stretching or cracking at inlet temperatures above the melting point of the actual alloy it's made of.
Skip any of those and you greately lose in efficiency and life span of the engine.

>>11290695
someone pls add a pic of entire galaxy colonized with expendable LVs in there

>>11290684
>>11290826
Chinks will have this reverse engineered in 10 minutes once they realise they need to stop fucking around with their space program.

>but muh elite ULA engineers couldn't figure it out

And yet Russian vatniks could produce these and the entire economy of Russia is like the size of texas lmao. Its almost like ULA are a bunch of incompetent retards looking for the sweet government kickbacks.

>>11290588
China have developed, mass produced and flown oxygen-rich staged-combustion Kerosene engines, something the US has never been able to do, so I wouldn’t diss their metallurgy.

>>11290598
>>11290857
ULA don’t build engines, they buy them. For example: the RD-180s come from Russia and are procured by Pratt and Whitney, RL-10s, RS-68s, RS-27s are all bought from AJR, BE-4 comes from Blue Origin, whilst the current AJ-60 SRBs come from AJR and it’s replacement the GEM-63 comes from Northrop.

>>11290621
>>11290623
>>11290656
>>11290652
>>11290667
>>11290694
>>11290700
Anybody who’s been involved with both Boeing and ULA can tell you they are not the same thing. ULA is insular and has a completely different corporate culture to it’s parents, it’s workforce is also older and more experienced than it’s parent companies.

>>11291018
>China have developed, mass produced and flown oxygen-rich staged-combustion Kerosene engines

Source RIGHT NOW

Glad to see that SN/1's tank design held up better than Mk1's tank designs.
>>11289293
>implying we didn't find out trump was a good goy until after election
>>11289304
Sorry man.

>>11291038
https://en.m.wikipedia.org/wiki/YF-100

It’s used on all of China’s cryogenic fuelled rockets: it powers the LM-5’s boosters and both the LM-6 and 7 core-stages. They also use a smaller vacuum optimised stage-combustion engine called the YF-115 for the upper stages of the 6 and 7.

>>11291091

>>11291113
>lens flare

https://www.nasa.gov/multimedia/imagegallery/image_feature_359a.html
anyway, breaking the speed of sound doesn't happen until they're in the upper atmosphere, where there's typically not enough moisture in the air to form the super visible vapor cone from the low pressure area behind the shock wave that you get from fighter jets going transsonic at low speeds

at this point I'm just going to post vapor cones from rocket launches because they're pretty
remember to report flat earth trolls!

>>11291117
>Ignore the visible vapor waves around the wings and fuselage plz

this one's on the way back down lol

>>11291125
>low speeds
fuck, I meant to type "low altitude"
hurf durf I'm a retard

>>11291125
The rockets supposedly reach Mach 1 where there's still a lot of atmosphere in the air.

Tim Dodd the Everyday Estronaut has an entire article on the subject
https://everydayastronaut.com/photographer-captures-crazy-spacex-rocket-phenomenon/
I think I'm going to try to watch his stupid video

oh, here's a video of STS doing it too
https://youtu.be/H5jUeW_Xib8

>>11291148
Yes, but it's not the air that goes all weird and causes the visible cone to form, it's the moisture in the air coming out as a low pressure zone forms behind the shockwave
the shockwave isn't terribly visible

>>11291128
>didn't even post a real rocket

>>11291148
>>11291141
>>11291133
>>11291127
>>11291125
>>11291113

Like they’re doing here?

>>11291162
This bait is too obvious even for me.
Sorry, but you’re going into the “hidden” box.

>>11291168
in his defense, the Ares X-1 is fake as fuck

anyway if all you wanted was pictures of vapor cones you should have just asked for them

ooh Atlas V vapor cone

>>11291157
The cone can form below Mach 1 speeds, where's the sonic boom sound?

It poppped

>>11291179
https://youtu.be/VBlIvghQTlI

https://youtu.be/lNL4HHFG8H4

>>11291185
First video is of falling rockets, second video isn't a rocket.

>>11291179
out to sea, the environmental assessments for the launch sites have predicted areas where you can hear the booms and they're all way out there
Shuttle returning from orbit and Falcon 9 returning to the launch site both have super audible sonic booms
Super Heavy will also have one, and here's a chart predicting where the Starship sonic booms will be audible
that's from this document: https://netspublic.grc.nasa.gov/main/20190801_Final_DRAFT_EA_SpaceX_Starship.pdf

>>11291196
>second video isn't a rocket

Technically a spaceplane, but it uses a rocket to get to orbit. The distinction you draw is irrelevant. Your trolling is dead and you are banished forever.

>>11291197
There's no way some space nerds haven't captured hundreds of the sonic booms.

>>11291202
Shouldn't be this hard to find one, spacecuck.

>>11291210
maybe you should go ask them then? this is a peruvian llama shearing forum
https://forum.nasaspaceflight.com/index.php#c14

>>11291210
One of the best vids https://youtu.be/VBlIvghQTlI

>>11291079
I thought they‘d test it to failure?

>>11291213
Don't doge, spacecuck.

>>11291212
It’s very easy, look it up on YouTube.
I will ignore you now. Bye.

>>11291216
Where do they make this sound going to "space"?

https://youtu.be/j27fhnwu88c
anyway, sonic booms travel outwards at an angle from the path of the object, and get bent upwards away from the surface by the pressure gradient
so basically you won't ever hear a sonic boom from a rocket launch because it never reaches the surface

>>11291221

>>11291226
>>11291233

>>11291240
Alright then. I guess this one was built so the front doesn‘t fall off at all.

>>11291244
they tested it with water instead of liquid nitrogen so that it doesn't BLEVE and send bits flying
of course this means that it wasn't cryogenic, so I don't know how valid the data they're getting is

>>11291091
>UUUUuuuuUUuUuuuuuuUuuuHHhHHhHHHHhhhhhh
>ROUND EARTH FAKE
>DUEEEEEEEEEEERRRRRGH

>>11291252

>>11291252
Don’t reply to them and they disappear.

>>11291243
That is the best image for you to use, as it shows how much of a tiny, smooth brain you have.

>>11291256
he's probably replying to himself, the only thing you can do is report them

>>11291255
Morons like you are designed to make shit like jews building a literal Illuminati pyramid look dumb. Piss off.

>>11291260
Nah, we're different people.

>>11291259
Watch your words, spacecuck, I have a higher IQ than you.

>>11291262
>thinks this is real

https://spacenews.com/dynetics-sierra-nevada-bidding-on-artemis-lunar-lander/

Dynetics, Sierra Nevada bidding on Artemis lunar lander:

> A team led by Dynetics that includes Sierra Nevada Corporation (SNC) is among the bidders for a NASA program to develop landers that will carry astronauts to the surface of the moon.

> Dynetics spokesperson Kristina Hendrix confirmed in a Jan. 9 email that the company did submit a proposal for the HLS program. “We have put together a very impressive team of experienced small and mid-sized companies that bring a wide range of experience in NASA, DoD and commercial space programs,” she said. She declined to provide more information about the company’s bid, including who the other members of the team are.

> Proposals for HLS were due to NASA Nov. 5. Prior to the deadline Blue Origin announced it was bidding on the program with a “national team” that included Draper, Lockheed Martin and Northrop Grumman. Boeing announced at the proposal deadline that it had submitted a bid for a lunar lander that would be launched by the SLS. There’s widespread belief in the space industry that SpaceX is also bidding on the program, but the company has not commented on whether it is a bidder.

> NASA had expected to award several study contracts by the end of 2019 for HLS, later selecting one or two companies to proceed to full-scale development. Those initial awards are now not expected until at least February, industry sources say, in part because of budget uncertainty. NASA received $600 million to start lunar lander work in the fiscal year 2020 appropriations bill enacted in December, but had requested $1 billion.

>Dynetics, who announced Dec. 17 it would be acquired by Leidos in a $1.65 billion all-cash deal, currently works with one of the companies in NASA’s Commercial Lunar Payload Services (CLPS) program. It is supplying propulsion the main propulsion system for the Peregrine lander under development by Astrobotic.

>>11291240
Where is booom! I want BOOOM!

>>11291286
[math] _{boom} [/math]

>>11291279
all right, my money says the Blue Origin team and the Dynetics team get the lunar landar contract, with room for Starship to be on-ramped later

>>11291088
Redpill me on the rumored YF-220

>>11291324
There’s not much to talk about, but the YF-220 as it’s name suggests will be a engine producing 200 tons or 2200kN of thrust. We know it’ll power the second-stage of the Long-March 9 mega-rocket and will use hydrolox for propellant.

>>11291360
>2200kN of thrust
>twice that of the J-2
sweet lord, what cycle do they want to run it on?

>>11291365
Probably gas generator, like every other high thrust LH2 engine ever flown.

>>11291374
>AR-22

>>11291376
Guess I should have cross-checked the RS-25's thrust levels too - 200 tons, staged combustion cycle.

>>11291365
I believe it’ll be using a gas-generator, which makes sense considering the LM-9’s 3-stage design suggests it’ll essentially be an S-II equivalent, with the 3rd stage using a pair of more efficient expander-cycle YF-75Ds.

>>11291249
Maybe cryo test next now that they know it can at least hold the rated pressure? Or maybe they just raised the test pressure to account for different material strength at higher temperature.

>>11291385
If that's the engine, that's a staged combustion cycle.

>>11291387
stainless is weaker at room temperature than it is at cryo

>>11291390
Or lowered. There can be some fuckery with welds though.

>>11291018
Having a different corporate culture and an older workforce does not mean that ULA isn't still Boeing. Those differences are not even novel, you're expected to see similar qualities with any subsidiary.

>>11291113
>>11291125
>>11291127
>>11291133
>>11291135
>>11291141
Dis shit is pretty cool.

>>11291425
thanks, that's why I posted it

>>11291267
>gyros

>>11291427
Also RCS.

>>11291415
ULA mostly feels like Lockheed, for better or for worse

>>11291360
why use kerosene then hydrogen? better performance in-air?

Over 9000 hours in MS paint
>>11291440
That's interesting because Lockheed has the minority in stake, they're not able to veto anything Boeing wants done. Perhaps even Boeing doesn't want to be Boeing.

>>11291449
For a booster, you want as much kick as you can get, and kerolox is the easiest way to get it. For upper stages, you want the best specific impulse at the lowest overall weight you can get away with.

>>11291449
denser fuels mean lighter turbopumps for the same fuel flow/chamber pressure/thrust
denser fuels also mean better fuel fraction

pop

>>11291460
Where's the popcorn?

>>11291460
plop

>>11291460
That kinda looks like the opposite of a pop

>>11291466
that's what happens after it deflates once it pops

>>11291453
>>11291458
Thanks

>>11291460
Success at failing? Or failing to reach proper fail pressure margin?

>>11291460
this is part of the continuing saga of what happens when you forget how important quality control is

>>11291489
no this one was on purpose

>>11291427
>>11291432
no

>>11291449
>>11291453
Considering the 3-stage design, the kerolox core and boosters will likely be ditched quite early on, like with the Saturn V. The YF-220 will then power it most the way to orbit, with the efficient YF-75D third-stage finishing insertion and doing the TLI burn. Not that the kerolox engines powering the core and boosters will be inefficient by any stretch, the YF-480 is essentially a reverse-engineered RD-180 with more thrust (nearly 5000kN).

>>11291489
This was a pressure fail test, it was to see how high of a pressure it can handle. The question now is, did they reach the margin they wanted with the current design or does it need iterative changes?

>>11291498
we'll know when they put the next one out there in a week
if they load that one with liquid nitrogen then we know they're progressing

Do they intend to use the other tanks or were they all made to meet the same fate in destructive testing? Are they all the same miniature size?

>>11291539
Did they make more than one tank?

>>11291547
thanks, Elon
https://twitter.com/elonmusk/status/1215533676848537601

>>11291541
>>11291555
I think I misread Elon stating what time it was in the morning for how many tanks they've made.

Ignore the deleted posts. I'm a retard, bros.

>>11291581
>makes a simple mistake
>completely dies on the inside, deletes all his posts, and then posts a sad frog
fucking frogposter, grow the hell up, admit to your mistakes like an adult, and learn something from the experience

ah, here we go
https://www.youtube.com/watch?v=0JkTvfMSHu4

>>11291292
>BO
>Hasn't launched anything at all except a dildo barely into space less than a dozen times
>BE-4 engine hasn't lifted a single rocket

If they score a contract over spacex you know that shit was rigged.

>>11291610
of course it's rigged, but I'm predicting against Boeing

>>11291603
I don't know how they come up with names like "fails pressure test" when the whole point of the test was to find out when it would burst.

>>11291624
it's because the LabPadre guy is a retarded surfer hick

>>11291610
Grumman had never built an orbital rocket before and they were awarded the contract for the LEM. Blue have put forward a very convincing proposal, both technically and politically.

>>11291491
It is quite obvious you need to keep taking your meds.

>>11291635
Replying to him encourages more garbage posts, ignore him.

>>11291590
>post shit
>see a typo was made
>"fuck it"
>3 people (samefag) focuses only on the typo and nothing else trying to drag everything else down
>too busy shitposting in another thread to care
My problem with this thread is that I use 4chan-X and I press "F" the instant I come into any thread. Then I only read and reply to posts that have images, because this is a god damn image board. So, post some thread-related irl space images instead of frogs and anime.

>>11291581
Fuck off, frogposter.

>>11291641
>So, post some thread-related irl space images instead of frogs and anime

>>11291590
>anime girl poster giving life advice

>I ruined this thread because I posted a frog

It's all ogre for me now, bros. Oh God, I'm so sorry.

>>11291653
there's nothing wrong with anime
also touhous are not anime
>>11291668
pic related

>>11291648
>>11291653
>>11291668
>>11291672
I'm putting you all on notice. See me after class in the parking lot.

>>11291668
I mean it's nicer than flat-earther/fakespace spam at least.

How does one build a nuclear lightbulb that will work without blowing up?
I need a nuclear rocket

Will I have to wire my own house for Starlink? Buy my own wireless APs?

>>11291460
Hopefully that pressure is way above the demands encountered in a trip to space

>>11292023
7.1 bar. Operational pressure is 6. Target level is 8.5 for manned spaceflight certification.

https://twitter.com/elonmusk/status/1215719463913345024

>>11292032

1.4 safety factor for crewed flight is arbitrary, even if SpaceX chooses to observe it.

>>11292032
That is a respectable accomplishment. Congrats. Looks like we'll be seeing the first flights within a few months.

>>11292040
It's an arbitrary safety factor, but it's NASA's arbitrary safety factor.

>>11292004
Just a power line to the unit on your roof or where ever it has a proper view to the sky.

>>11292047

I'm not sure, and not entirely sure ULA's Atlas 5 meets it.

>>11292032
Lol, that’s pathetic, especially with a sub-scale tank. SLS has a safety factor of 2.8 for comparison...

>>11292061
The SLS tank has been in development for alot longer than Starship existed even conceptually. It was also based on a preexisting tank design that has been in use since the 80s. It makes sense that the SLS tank is a solid design now, while the brand new Starship tank has some teething issues.

>>11292061
>>11292070
SLS tank is basically modified Space Shuttle tank that's been developed since the 60s/70s. The whole reason SLS price is so disgusting is because 90% of all the R/D has already been done and paid for and yet its still going to be the most expensive rocket in history at this rate.

>>11291464
This post triggered my PTSD, thanks a lot Anon.

>>11292061
If NASA truly requires 1.4 as a safety factor, then that seems ridiculously overdesigned. Maybe the 2.8 starts from another base pressure?

>>11292321
>triggered my PTSD
whatever could you mean, anon?

>>11292044
there is no way the first flight will be anything sooner than at least summer

>>11292324
That fucking snake

>>11292032
SOON

>>11292321
>If NASA truly requires 1.4 as a safety factor, then that seems ridiculously overdesigned. Maybe the 2.8 starts from another base pressure?

I’ve done some research and Starship’s burst factor of 1.18 would not be sufficient to qualify it as a pressure vessel for flight under any industry or government standard. For example, both the AIAA S-80 (the industry standard for metallic pressure vessels, set by the American Institute of Aeronautics and Astronautics) and the MIL-STD-1522A (the US military standard for pressurised missiles/rockets) require a burst factor of 1.25. Furthermore, this test was not undertaken in flight conditions e.g. flight vibrations weren’t simulated and outward tank pressure increases in a vacuum. In summary: I can’t wait for the fireworks to begin and hope Elon is onboard when they do, for being a cheapskate.

>>11292381
Wasn't this the first test? They may be aiming for a higher factor of safety but the test revealed some issues in the construction of the tank.

>>11292394
>Dome to barrel weld made it to 7.1 bar, which is pretty good as ~6 bar is needed for orbital flight. With more precise parts & better welding conditions, we should reach ~8.5 bar, which is the 1.4 factor of safety needed for crewed flight.
>~6 bar is needed for orbital flight.

>>11292398
And?

>>11292381
Fuck off fudposter

>>11292402
It's just Elon's tweet, verbatim.

>>11292409
>>11292398
So the tank didn't meet the requirements yet, but it will in the future? So what was >>11292381 complaining about?

>>11292394
Have they talked about doing extra sub-scale tank tests? I was under the impression that they were going straight to SN1. Why am I being so critical of this test? You’ve got to consider it in the context of the entire Super-Heavy stack:
This test using a squat, sub-scale tank was unimpressive; now think about the massive forces which will be exerted on a fully-fuelled, 60m+ long core which is supporting a 1300 ton Starship whilst being exposed to the vibrations of 31+ engines...

>>11292421
That's why they're testing with SN1, 2, etc. Learn as you fly kind of stuff.

>>11292381
Why do you hate Elon so much? Is it because he accidentally redpilled a bunch of people when he unintentionally called you out?

>>11292414
>~6 bar is needed for orbital flight.

>>11292446
And?

>>11292460
7 > 6. Do you not know math? Or do you think SpaceX is flying people on their first test to orbit?

>>11292460
Anon, we just wanna see a test article start training reentry and belly flops. We don't give a fuck right now if you can put people on there or if there's a one in three chance it'll turn the launchpad into a crater.
It's all about testing as much as possible as quickly as possible right now.
This was enough for what they want to do next so it's good news for now.

>>11292475
I'm excited to see Super Heavy officially become the most powerful rocket ever flown

>>11292469
No because I'm not FUD poster anon.

>>11292475
I know that. I want to see that shiny bird fly too.

>>11289653
Good.

>>11292601
>>11292601
New thread

>>11292421
I wonder if they might end up going back to those carbon fibre tanks

>>11292421
>which is supporting a 1300 ton Starship

When FUDposters can't even get their facts straight. It's 1300 tonnes fully loaded when refuelled with propellant in orbit you fuckwit. How the short selling going by the way? Not too good last I checked lmao.

>>11292602
>>11292619
>>11292619
new dread

>>11292609
hell no, they get to really ease up on the TPS with the stainless

>>11292615
no, the upper stage is 1300 tons on the launchpad as well