/sci/ - Science & Math

New Infos about BFR when?

quick FAQ about fairings & Steve

>what's the deal with Mr Steven?
Mr Steven is a 60 meter long, highly maneuverable boat. It is currently being leased by SpaceX.
>why does it have a gigantic net?
To catch fairings, after they separate from the Falcon 9 2nd stage
>why catch them, and not just let them hit the ocean?
The seawater wrecks the fancy composite fairing, so a method of keeping them from touching the water is needed
>why recover them anyways?
The fairings cost three million dollars each. Together, they make up 10% of the cost of an entire Falcon 9. To reuse them would mean big cash savings for each launch; plus, SpaceX wants to avoid being cadence-limited by their autoclave, which can only produce a certain number of fairings per month.
>is this launch the first time Mr Steven is being used?
No, but it is the first time that Mr Steven's new, 4x larger net is going to be tested. So far, no fairings have been caught by Mr Steven—but some got really close (thus the new larger net area)
>will there be a stream of Mr Steven for this launch?
Maybe, but it might be too dark to see anything.
>does Mr Steven move to catch the fairings, or do the fairings move to 'hit' the boat?
A bit of both. The fairings have steerable parafoils, and Mr Steven has powerful omnidirectional thrusters

>>9890449
and some context, this is what happens when the fairings hit the water: (from the Telstar 19V launch)

>>9890436
soon

12 bongs to go

Fuck yeah I hope they stream the fairing recovery even if it is dark.

>>9890701
they should be pretty warm coming down, so perhaps FLIR could be used?

>Falcon 9 and Iridium-7 went vertical earlier today on the SpaceX launch pad at Vandenberg Air Force Base in California. Weather is 90% favorable for tomorrow’s launch at 4:39 a.m. PDT, 11:39 UTC.

Will they be refurbishing block 5s to relaunch now that block 4s are gone? Can't wait until one has 4-5 launches under it's belt.

>>9890893
yep that's the plan. They've said in the past that they will only manufacture ~40 B5 Falcon 9 1st stages in total. Enough for the interim period before BFR is flying. And, B5 stages can be converted between FH side boosters and F9 single sticks with relative ease too

Meanwhile in ULA land, a piece of foam inside of the Parker solar probe fairing has delayed the launch to the 11th

>>9890915
The absolute state of ULA

Iridium patch

in the meantime, enjoy this video of the MOMO-2 launch failure

https://www.youtube.com/watch?v=RJ4LK50TwVs

9 bongs to go. Can't wait to see those fairings in the net, oh man

It will blow up.

>>9891193
look at those lovely hypergolics, mmmmm

>>9891063
Looks like the turbopump or something involved with it failed.

>>9891195

>>9891201
roll control thruster apparently. Interstellar Technologies is working on an orbital-class rocket too; always good to see more foreign players in the market

>>9891202
reminds me of redstone

https://www.youtube.com/watch?v=MeSdG7znJeA

Real launch happening in a few hours.

>>9891222
>a few hours
14 minutes before Falcon 9 you mean. Almost simultaneous!

b5 is pretty

>>9891201
1000fps slow mo of the failure: https://www.youtube.com/watch?v=J11R_fVi1-o https://www.youtube.com/watch?v=Jkaf1HQ_nN4

pic is the rocket's official waifu

>>9891255

>>9891259
>>9891255
Qt.

It does look like the turbopump gave it up, and if the roll control thrusters are powered by the turbopump's waste gases it would definitely show as them. It would also explain the flameout shortly afterwards, where propellants kept flowing but not fast enough to maintain combustion.

>>9891270
It doesn't have a turbopump you chimp.

some line burst somewhere for sure

>>9891278
>>9891270
the anon is right; it uses a pintle injector—not a turbo pump.


details: http://www.istellartech.com/technology_en/engine_en

>>9891279
Those welds! No wonder it exploded.

>>9891308
they look fine to me, and they look fine in other photos too

We'll probably see Grimes at MCC-X for this launch—she was at the Hyperloop competition a few days ago

Are they using the rocket from a few days ago?

>>9891318
The beads are uneven. You can see how it was done in segments. This may pass in infrastructure, but not in aerospace.

>>9891331
Read the op silly

(The answer is no)

>>9891331
No, but that would be hell of a turn around. (From Florida to space, Florida to California, California to space)

>>9891336
Sorry, I am stupid. Read the op and saw it.

>>9891338
speaking of which, OCISLY will arrive in port tomorrow morning, probably around the same time that B1048 takes off.

Assuming they catch the fairing they would still need to build a second boat before they begin regular recovery operations, right?

>>9891039
This isn't for SpaceX, no four-leaf clover

>>9891416
>to build a second boat
Or a new boat design with twice as much net surface area.

>>9891420
Depends on the separation of the fairings and how much steering control they have in space and in the atmosphere. Catching both halves will require some fairly aggressive maneuvering immediately after separation to keep them from going too far apart.

There's also the potential of a midair collision taking out one or both of the fairing's parafoils, and thus the fairing itself.

>>9891418
Iridium has their own internal patches

MMIST is the current supplier of the parafoil hardware https://www.mmist.ca/space-recovery.html

the fairings also have nitrogen gas thrusters, but I believe those are only used when above ~70km or so

>>9890436
https://twitter.com/elonmusk/status/1017949588295159808

>>9891321
>that last row at the bottom that doesn't match every other row

>>9891224
Maybe they will hit eachother?

>>9891519
also, the height goes 2-2-1-2-1-2-1-2-1-2-1-2-1-2-1-sideways.
the topmost row should technically be a 1

>>9891523
Galileo is in MEO, Iridium is LEO. Also, completely different orbital planes.

>>9891527
fuck me you're right

at 10¢ per brick it'll be cheaper than modern LEGO sets. I wouldn't mind a gigantic compressed-dirt model of a pyramid or famous building or something

>>9891538
I like how they are turning the mountains of spoil into an actually useful product.

>>9891541
I don't see those jigs being that expensive either. Should be pretty straightforward to develop various molds for different pieces.

Wonder what the constraints are regarding the kind of soil they put in the machine? The water content must play a big role in the sturdiness/crumbliness of the brick

4 bongs to go

SpaceX newfag here, friend recommended I watch these launches and follow the threads since I am into sci fi and shit. What am I in for? Any fun rocket memes?

>>9891628
well the rocket goes up, and then it comes back down. Today the fairings are going to be caught by a big net (hopefully).

SpaceX memes are the best memes by far. Too many variants to mention.

>>9891416
Or
>Recover 1 half
>Recover another half next launch

Voilà, you got yourself a 'free fairing'.

>>9891657
Don’t you mean WA LA?
t. /ck/

>>9891628
well the big thing about these newest launches is that the Falcon 9 Block 5 first stage should be pretty much immediately reusable after landing, shipping to the pad and refueling. They said they only need to do real maintenance after ten flights, which would be completely revolutionary. Not that they really need to relaunch in a day, but in theory that should be possible now. Plus: if all these launches this year go as planned it‘ll get human rated from what I understood so it‘ll be able to send crew capsules into space.
On top of that, you can strap any of these first stages onto a Falcon Heavy core as a side booster to get a much stronger rocket.
If this all works as planned, space just got even cheaper and not just for machines, but for humans as well.
It‘s a pretty exciting machine they have there.

But most people in here right now just want to see two pieces dropped from orbit getting caught by a ship with a humongous base ball glove.

40 bings to go

8 minutes until Ariane stream starts https://youtu.be/MeSdG7znJeA

>>9891807
You mean 8 bings to the start of the stream for the most reliable operational rocket

Ariane stream on

>>9891812
F9 is as reliable as Ariane 5. And I'm pretty sure Delta II is technically more reliable

>>9891810
ESA livestream has chat and better quality IMO

>>9891812
t. CEO of Arianespace STEPHANE ISRAEL

OCISLY is visible now

>>9891818
Chat is disabled for this live stream.

MUSIC

https://www.youtube.com/watch?v=vsDknmK30C0
https://www.youtube.com/watch?v=vsDknmK30C0
https://www.youtube.com/watch?v=vsDknmK30C0
https://www.youtube.com/watch?v=vsDknmK30C0
https://www.youtube.com/watch?v=vsDknmK30C0

SpaceX stream starting!

stream's up

What timeline is this, where I can watch 2 launches at the same time?

digits for explosion on the launch pad

>>9891826
wrong

>>9891840
the best one

>>9891841
but for who?

>>9891812
Ariane 6 never.

>>9891837
reminder that you can change to the non-brainlet audio

inb4 anyone but Insprucker

ONE MINUTE

OOOOOOOHHHHHHHH INSPRUCKER IN THE HOUSE

INSPRUCKER

>>9890424
Fucking fog at it again

dual booster rockets look pretty badass

>>9891857
If we can't have Ron Burgundy, he'll do.

>>9891846
>implying I'm talking about the best rocket ever built

could it be?

https://www.iridium.com/blog/2018/07/23/iridium-creates-ultimate-launch-soundtrack-spotify/
Meh you have to have Spotify.

SUPER DIFFICULT

They keep meming 2nd stage recovery, but I don't see it happening unless they start launching cubesats 1 by 1.

GOOD LUCK MR STEVEN I LOVE YOU

oh boy B1048 will have a tough landing ahead of it

big fairing is big

just you wait, the fairing will BTFO this """""""wind shear"""""""

The old Iridum was old enough that it didn't even support digital modes. You had to use an analog modem of some sort.

Why did they show a clip of that dumbass chinese bus/rtram thing?

>>9891874
I'm afraid it will hit the captains bridge.

foggy boi

>>9891874
netlets btfo

>>9891878
if they get scronched it'll be funny

HERE WE GO LADS

GO B1048
GO FAIRING
GO IRIDIUM
GO STEVE

Goodbye good world

CAN'T SEE SHIT CAPT'N

FUCKING KINO

Trippy fumes ilumination

here come the landing(s)!

oooh looks to be pretty off center this time. the sea must be choppy.

good landing(?) seemed like it

it's ogre
way too close for comfort

Cant se shit. Earth must be flat.

cratch

40 minutes until we get word of the fairing status.

https://twitter.com/SpaceX/status/1022088522168029184 stage 1 landing confirmed

That fairing is gonna take hours

s2 views are back

"congratulations" was mentioned on the net. good fairing news...?

>>9891941
oh god I sure hope so

awwwwww no fairing

fairing BTFO

rip

N O M I N A L
O
M
I
N
A
L

deploy in 30 sec

>>9891946
Source?

>>9890424
Boring

ESA and ArianeSpace are better

>>9891967
frig off

>>9891966
Insprucker said they missed it

Space is now member of the European Union

nice views of the deploys

and that's a wrap - complete mission success

next F9 launch is August 4th, with Telkom-4 from SLC-40. Also a brand-new block 5.

>>9891988
>complete mission success

what happened with Mr. Hands?

>>9891989
fairings are a secondary objective.... for now

>>9891990
wind shear? we'll have to see how far from the net the fairings were at touchdown

>>9890424
Why do they insist on putting the progress bar in the area covered by the YouTube progress bar?

>>9892019
the YT bar goes away if you don't move the mouse, at least for me

>>9892021
If you are in the process of using the progress bar to select the part of the video you want to see, the most important bit of information is obscured.

It says they saw the fairing from the ship, but couldn't get there in time because of bad weather.

We just have to face reality that even the block 5 just can't catch a fairing. Without any control rockets the fairing is just too erratic of a landing site because of the atmosphere.

They will never consistently catch the fairing.

>>9892053
where'd you get that idea from? They've gotten to within a few hundred meters of Mr Steven. Their control and landing prediction software will only get better; I'd imagine a tweak of the glide ratio and Steven placement will do the trick. Wind shear a shit, but you're always going to have weather anomalies from time to time

Heck even with the shit conditions today they could spot the fairing from Mr Steven. I bet they'll catch one next time

B1047 looking good

>>9892061
Why don't they make it autonomus? The ship will get to the location automatically calculated by sensors onboard the fairing

>>9892079
what great timing, recovery operations happening at the same time on each coast

>>9892061
I still think it would be better to make the fairings seaworthy. They are practically boat-shaped already!

>>9892096
it probably already does that to some degree

LOL, Iridium had graphics of that scam Chinese straddlebus in their promo video.

>>9892156
tbf they might have made that promo video back when the bus was first announced

https://twitter.com/IridiumBoss/status/1022116763788435456

Iridium has saved over 320 million dollars by picking SpaceX over other providers. Neat

>>9892156
Probably an easter egg for us autists.

It's at 17:56 for those who want to see it.

>>9892079
ENHANCE!

>>9892120
But boats can't survive underwater either. They need to be built like a submarine, not a boat.

VP Pence tweeted about the launch.

>>9892196
Suck on that, ULA.

>>9892196
>B-but muh fraud muh welfare queen muh no new innovations

>>9892024
Yeah it's fucking cancer why is it not at the top or down the side or something. SpaceX PR is usually god tier.

>>9893108
it's more YT's fault; same with the annoying recommended videos that pop up 5sec before the video actually ends

>>9891873
It's not small?

CNN Headline: SpaceX loses multi-million dollar nose cone

https://money.cnn.com/2018/07/25/technology/spacex-fairing-recovery-iridium-7

Wouldn't "Holy shit, SpaceX almost does thing no one's ever done before, this time in terrible weather" have been a more appropriate headline?

Maybe this wouldn't happen if Elon would stop tearing into people like a drunken president whenever someone says something he doesn't like.

>>9893457
>CNN

>>9893457
the article is alright, but nowadays the article writers don't have final say over the title. Someone saw a chance to get more clicks

>>9893461
>the article is alright, but nowadays the article writers don't have final say over the title. Someone saw a chance to get more clicks
Sure, but they chose to make the click-bait headline negative instead of positive. Maybe negative headlines just get more clicks anyway, but it's also possible this has something to do with Elon acting like a jackass.

>>9893470
100% sure it doesn't have to do with that.

>>9893457
The short against Tesla and subsequent media bloodbath against Elon continues, They are grasping for every possible piece of ammunition. These shorters are going to lose billions lmao and you can tell by shit like this and the amount of shills recently they are starting to sweat. Good luck Elon you mad lad, I support your right to shitpost all you want.

Guys you almost forgot the meme, it's like a good luck charm.

>>9893812
>mfw realised I saved the thumbnail

Fuck sorry lads hope I didn't curse the next launch.

Here we go I found a Russian hacker version, best I can do lads.

>>9893812
>>9893814
>>9893822
I gotchu senpai

>>9893854
Based and redpilled, saving space travel one meme at a time anon.

Is the August 4th launch a new or refurb Block 5?

>>9893488
>100% sure it doesn't have to do with that.
Why?

Elon attacks the press, the press responds in an expected manner. No conspiracy theory, just regular human behavior.

Is your hypothesis that the headline was written that way because an anti-SpaceX article is likely to get more clicks? Maybe people were clicking hoping to see an explosion?

Even if true, the editor has to know what he's doing, and it would mean he's OK with it.

>>9893875
new

even though the fairing missed Mr Steven, they still recovered it from the water, as expected