/sci/ - Science & Math

>>7898262
There's only so many times I can edge.

Post coastguard feed

why would they scrub instead of just launching

why hold a launch because someone is in some arbitrary danger zone?

>>7898888
The hold for the boat caused the liquid oxygen fuel to heat up and triggered an abort when there was a low thrust alarm

>>7898888
Because killing or injuring someone will result in a huge lawsuit as well as a PR nightmare.

>>7898262
Kinda cool that they can still abort after ignition.

>>7899192
Space shuttles could do that too.

ULA here, our boat is ready.

>>7898888
This particular launch is right on the bleeding edge of their payload capacity, if the LOX isn't cold enough there simply isn't enough of it on board to put the payload in the right orbit.

If Elon gave up on trying to land the first stage they would have a bit more breathing room.

>>7899280
>If Elon gave up on trying to land the first stage
Why would he do this? That is the entire point of his venture. Why do people just want to see another ULA copy? What has ULA ever done for you?

>>7899289
Just on this one launch I mean, as it stands they're just trying it for shits and giggles since the launch trajectory is fairly extreme. The problem is that propellant they're saving for a landing they're not particularly confident with could be used for the actual payload. Instead, we get repeated scrubs because the LOX isn't cold enough.

>>7899294
I dunno man it's their money.

fly, my pretty

T-10:00:00

>>7899445
T-8

>>7899446

oh right, sorry

>>7898262

Why are they spraying water onto it?

>>7899466
Sound suppression

>>7899466
water muffles the sound waves from a rocket engine, thus lowering vibrations during launch

>>7899482
>>7899484
They said, "fire suppression," in the technical live stream.

>>7899576
well, it does that as well, i'd imagine. especially if there is an abort, like we had on sunday.

is it going to happen

>>7899644
https://www.youtube.com/watch?v=VHrj811ULQI

https://www.youtube.com/watch?v=ZRw4uQaWcAM

>>7899662
>The live event will begin in 5 hours.

>>7899662
but is it going to HAPPEN

>>7899671
Maybe.

Anyone know how large those exclusion zones are? And if there were any penalties for the retard that decided to play "Deadliest Catch: Rocket edition" inside of it?

>>7899714
it was international waters, so no. They are getting fined for leaving their AIS off, but that isn't comparable to the cost of delaying a launch.

Personally, I think the laws should be changed to allow launch with range violation, and violators forfeit any liability.

>4th time lucky

It's fucking disgraceful at this point

Disgraceful that I will stay up til midnight for a fourth time only to watch a stationary rocket doing fuck all

I basically called the LOX warming up issue during the last launch hold. It doesn't take a genius to tell it get's pretty warm in LA

If you don't believe me go fuck yourself

>>7899741
You sure seem certain, considering that Cape Canaveral is located in Fla and not LA. But its probably warm there as well ;)

>>7899752
Whatever they're both Southern USA. Latitude is probably identical

You Amerifags think Russia is in Europe

>>7899765
Norway here, actually. And we know the difference between East Coast and West Coast ;)

is there any other place we know of that would be a plentiful, if not renewable source of helium? perhaps the gas giants? jupiters ridiculous pressure and gravity could prevent helium from escaping to space

>>7899789
Pretty sure the Sun has lots of Helium

>>7899800
need to go there at night though, when its cold

>>7899800
its been like 10 years since I saw that meme...

>>7899735
brit here also, what time is this happening? imagine after all this it blows up

>>7899819
T-3 hours 30 min left

>>7899819
11:30-12:00 midnight

>>7899834
>Boat in controlled zone
>Scramble Heli into controlled zone to clear controlled zone
wat

>>7899857
It's more
>unauthorised boat enters controlled zone
>authorised helicopter tells unauthorised boat to get out of its zone

>>7899862
i wish they filmed it and showed it on the webcast

>>7899857
http://i.4cdn.org/wsg/1456865159741.webm

>Pushing launch to Friday due to extreme high altitude wind shear.

>>7899983
FFFFFFFFFFFFFFFF

>>7899983
GOD DAMNIT

>>7899983
DONT YOU FUCKING DARE!!!

countdown still running at SpaceX.com. T-2 hours 24 minutes

fuuuuuuuuuuck

At least with got the Soyuz detachment from the ISS to look forward to tonight lads:

http://www.nasa.gov/multimedia/nasatv/

>>7899983
>>7900019
I bet there's a fucking boat behind this shit.

RIP launch, again

How much money does the company lose a month due to not having its satellite in orbit?
Bet both they and spacex would rather launch & possibly fail than not launch

>>7899206
only before srb ignition

>tfw future space society will never happen in your life because of wind

>>7899983
>>7900019
That's why Proton still has a launch market. Old tech and not very efficient, but built like a tank so it can launch even through a blizzard! They don't even test for crosswinds for Proton launches.

>>7900135
that, and Proton stages crash in the Khazakh steppes. Nobody cares if it crushes a herd of sheep.

Will there be ExoMars stream?

>>7898262
CANT TUSK THE MUSK

So, for the fuck of it, seeing as there will be no launch...
Anyone know anything about the following:
1: Status on the Raptor? Any news on testing/progress?
2: Status on the Dragon 2, with the launch-abort test from mid-flight?

>>7900184
The real question is what has this little fucker been up to the past 10 months?

>>7900016
It probably would have gone up yesterday if it weren't for the fucking boat.

Fucking boats. I think we need another may-may image for boats fucking up launches.

>>7899983
>>7900135
F9 GIRLY VIRGIN LITTLE ROCKET

>>7900239
visiting the secret space-station ofc.

>>7900239
Spy on you.

>>7900256
I wish someone cared about me enough to spy on me

>>7900239
Killing Space Commies and/or Space Nazis.

>>7900245
indeed. Russia knows how to make a manly rocket.

>>7900378
>one named "rockot"

I love you, Russians

>>7899289
>What has ULA ever done for you?

They gave me a nice boat

>>7900103

Clearly not enough to pay for proper patrolling of the safety zone

Might I ask what the astronaut did in the 340 days he was in space?

>>7900405
Hate to tell you but the "C" is pronounced as an "S" sound making it Roskot. Whoever made that chart either has a sense of humor or doesnt know much about the Cyrillic alphabet...

>>7901678
But it's written Rockot.

>>7901678
No, it is not pronounced as an "S" here. "Poкoт" means deep and loud sound like thunder.
source: i am slav

>>7901710
do you squat?

>>7900378
HOLY FUCKING SHIT

I look it up about the "energia" and holy cow, that shit was made to be reused, by attaching fucking wings and landing gears to the thing!

The soviets were the kings of space there is no doubt about that

>>7902047
Uur sorry energia-2 anyway that shit is awesome

>>7902047
Not quite. Energia was built to launch Buran, which was a soviet space plane comparable to the shuttle. The biggest difference between the two is that for Buran the main engines were mounted on the external tank which allowed for the use of the rocket without the orbiter. Only the Buran Orbiter was reusable. (Although it only few once, and that was unmanned.) The Energia Rocket was not. There were proposals for a fully reusable version well after the original program had ended, but by that time the wall was down and the Russian space program was broke.

>>7902069
He might have been taking about the flyback-booster development program. Never made it past concept, sadly. All that is left is the Zenit rocket, also going away due to Sea Launch collapse and Ukraine conflict.

>>7902069
The odd looking boxes on the sides of the boosters were intended to house parachutes and landing gear, but neither of the two launches used it.

>>7902183
pretty neat

http://i.4cdn.org/wsg/1456374897406.webm

We'll never get a nominal like this with SpaceX.

>>7902183
>>7902069
Energia was supposed to undergo further development into an RLV, with flyback boosters and a recoverable orbital stage (not just the Buran orbiter, which did not carry the main engines and was not an integral part of the Energia vehicle, but just a payload for Energia).

Pic related: it's Energia II, also known as "Uragan".

It's like shuttle wings on the external fuel tank, and four boosters: two atop the wings, and two on the back/top.

Compared to the shuttle, this would have a higher area-to-mass ratio, making re-entry gentler. However, mass constraints may have caused difficulties.

>>7900138
So why can't they crash the stages in the Nevada desert? No boats there?

>>7904453
Too far north, hard to find a big enough patch of empty land, plus upper stage failures can drop multi-ton payloads much farther downrange.

Some kind of overland launch is likely to be used in the future when reusable rockets are as trustworthy as airliners. If they almost always land where they're supposed to, "range safety" is basically a non-issue.