SpaceX launch in T-23

That footage of the seperation...
**cums all over keyboard**

holy fuck did you see that shit.

those cameras a fucking amazing it looks like im watching a cgi mock up of the rocket separating and turning

You deserve to be ripped off.

JESUS FUCK THESE CAMERA ANGLES, MY DUDE.

>TFW WHEN LISTENING TO THIS WHILE GETTING NOIDED

>just woke up
>hear rumbling
>too lazy to get up and look out the window
>come to Veeky Forums to confirm it's a rocket launch

Funny how MOAB used the same fins while SpaceX claimed its their design.

i really not want to live on this planet though.

the nitrogen thrusters are huge. like the rocket is 200 feet all and those puffs are way bigger then the rocket and are covering a huge area.

DO IT

AND DONE

prepare for feed cutoff

Amazing

in after no scrub

Holy christ, what kind of cam did they use?

USA USA!

>SpaceX claimed its their design
wat?

They did when they first showed them in some webcast.
I dunno which one was it though.

>All that ground camera footage
muh dick

thats just because they are in a vacuum when they are firing
Same reason the rocket exhaust spreads out so much

they probably have big fucking computer controlled cameras at the space port

Oh my got, that footage!

oh neat thanks i am a fucking mongoloid and dont into science. I just want to kill xenos

Terminal velocity of a person is 50 meters a second

You'd think with some redesigning of the 1st stage they could make far more use of aerodynamics to reduce their speed rather than reentry burns or beginning the landing burn at 300+ meters a second.

terminal velocity is a lot faster when you're as heavy as the first stage is.

and aerodynamics apply going up too, and that needs to be as low as possible. What your suggesting would need to be some sort of deployable system, and turns out that for the same mass of such a system, an equal mass of fuel in the tank slows the rocket down way more, and for a lot less additional complexity.

Isn't velocity a spectrum though?

Excessive speed with at bullet tip nose causes shockwave around the craft to heat it up to absurd levels.
You want something with a blunt nose to deflect heat at the nose of the craft

Lol and they expect us to believe it was all real? Are they stupid?

>and turns out that for the same mass of such a system, an equal mass of fuel in the tank slows the rocket down way more

This is obviously nonsense, if they covered the rocket with PICA-X and came in horizontally, obviously that would slow down more.

This was but the previous landing had very shady moment.

Yeah lets hit the atmosphere at Mach 7 sideways. Heat wouldn't even that be that big of a problem...but the structural loads imparted sideways, even after all the slowdown? Say 1km/s? Sideways? No way. You have to remember, this is a rocket first of all. It's mass is severely constrained, and its mostly a very thin tube of aluminum.

Yea it's a thin tube, meaning it should easily be able to handle g's sideways, provided it is designed for it.

You'd need to put the necessary landing fuel in their own seperate tanks to solve the center of gravity problem/spread the weight out.

the fuel saved due to deceleration by drag is proportional to the starting velocity- the Falcon first stage doesn't reenter even close to as fast as something properly de-orbiting.

Coming in horizontally also makes no sense. Not only is the rocket not built to withstand that kind of stress (necessitating additional mass to reinforce it to be able to take it), that's not an aerodynamically stable configuration. The drag acting on the rocket is going to force it to come in either straight up or straight down. This will be true unless the first stage were shaped like a sphere or a capsule or something dumb, and I don't feel the need to explain why that's a stupid idea.

What, like autism?

Best parts:

youtu.be/EzQpkQ1etdA?t=20m12s -- stage separation (DAT FLIP)

youtu.be/EzQpkQ1etdA?t=26m5s -- sexy angle #1

youtu.be/EzQpkQ1etdA?t=26m24s -- sexy angle #2

Just the launch/landing:

youtube.com/watch?v=fV55f_CgsJA&t=0s

I think this is the first time we've seen the whole ground tracking view of the landing.

Gonna need a webm from dat flip

should just use a parachute or a balloon.

Can't.
The touchdown is still to fast and uncontrolled. The booster will be to damaged.

and airbags then

>all these armchair rocket scientists
>wanting to add crap to the rocket, increasing its weight
>wanting to land it in different directions, making it less stable
>not noticing that it is already working this way

>the fuel saved due to deceleration by drag is proportional to the starting velocity- the Falcon first stage doesn't reenter even close to as fast as something properly de-orbiting.

It still has to carry all the fuel needed for the boostback + reeentry burn + landing through the whole flight.
Which is something like 50 tons at MECO

At this point it's lighter to just bring fuel.

I think you underestimate the weight and cost of parachutes. You should go skydiving once.

A controlled engine burn is pretty much the only way to it controlled.

And landing them is almost a routine at this point.

You'd need some type of deployable breaking surfaces or something

The rocket body is a nice and long object, which is hard to slow down

Dear god, i hope you never get put in charge of anything engineering related

en.wikipedia.org/wiki/Dunning–Kruger_effect

>came in horizontally

Why not just skim it around the earth's atmosphere like a giant turd a few times? thatd slow it down right?

What level of paranoia do you have to be on for this to make any sense?

the length of the video has been shortened so the links are useless now

retards

It would REENTER horizontally to minimize terminal velocity

Then flip to vertical during the final landing maneuver

>came in horizontally
It's an oversized coke can, it will break in half if you try to enter sideways.

It is clear you have no idea about the energies and temperatures involved at these speeds, nor do you have any understanding of the structural strengths and associated tolerated loads of this rocket. Nor of the weight distribution of a stage, which alone would make it already impossible even if the strength was there.

Go read up on these and then come back and say 'fly it sideways' again, faggot.

Why? For pointing out how the idea completely goes against structural engineering?

I guess the SpaceX engineers are idiots, then, because having it re-enter horizontally and then flip to vertical to land is exactly how the ITS upper stage / spacecraft is supposed to work.

Horizontal-to-vertical is entirely workable, vertical all the way is just (arguably) better for the booster.

The booster's bottom is all covered in engines and heat shielding, and the structure obviously has to be good at taking end-to-end loads. It's simpler if you can use those, and not build in more heat shielding and more side-to-side load capacity.

In a booster return, you're going slow enough that you can run the engines during entry until you reach a speed that the engines can tolerate when shut off. This has several useful effects:
1) excellent control authority to prevent the rocket from tumbling under variable aerodynamic loads,
2) prevents intense winds "the wrong way" up the rocket by generating a bubble of gas pushing the other way,
3) reduces the time spent in the most intense phase of entry, and most importantly
4) engages the active cooling systems of the rocket engines, which are made of heat-tolerant materials, but depend mainly on the flow of cold fuel to prevent them from melting.

When will we see another big development though?

Seems like these landings are just standard now.

Welcome to the future

Falcon Heavy is finally launching later this year, and they'll be landing all three of its cores. The two side cores will be reused modified F9s, with only the center core being new.

They're scheduled to do a crew dragon test flight this year too, but that's likely to slip.

>supposed to work
>but still doesn't
>maybe someday
>when they actually launch something
>pls launch
>[spoiler];_;[/spoiler]

How many practice runs do they need for the crew to have people in?

Uh... ITS is SpaceX's next-generation fully-reusable rocket/spacecraft for Mars colonization, not a Blue Origin project.

Oh, I thought you were talking about SLS.

No part of SLS will be reusable.

not many. The practise runs are only a small part of getting certified for human payloads though

What's the rest then?

all parts of the rocket have to be certified for human spaceflight. The margins for error get even more autistic than they usually are. In addition to that all the shit specifically designed for human payloads needs to be tested and certified (life support and launch abort systems for example).

You can read through it here if you're interested, but it's pretty boring. nodis3.gsfc.nasa.gov/main_lib.cfm

wrong link
nodis3.gsfc.nasa.gov/displayDir.cfm?t=NPR&c=8705&s=2B

And here an article from the wikipedia references that probably doesn't read like something you'd have to crawl through for law school: airspacemag.com/space/certified-safe-281371/

>paranoia
It's not paranoia, but hatred instead. For some, Musk must fail.

Oooh, he jelly.
Is dat a Johnny Depp?

could they push the landing legs partial out to serve as an aerobrake?

would it interfere too much with steering?

This might be a feature of the final leg design.

Currently (and somewhat ironically), the legs and fins are single-use items. They have to remove and replace them with new ones as part of the refurbishment of the rocket. However, they're working on new designs for each which are fit for rapid reuse. The fins will be titanium (rather than the aluminum alloy used currently, which doesn't stand up to the heat so well) and the legs will also be altered.

Weren't the crush cores the only part of the legs they needed to completely replace?

Using the legal to brake is aerodynamically unstable, but could be done. It's just much easier to turn on the thrusters.

The legs themselves can't be folded back up, due to the locking mechanism

So they have to take them off anyways

Why didn't we get this kind of video before?

Grid fins have been used on missiles and bombs for a long time. Space X and MOAB are certainly not the first or even close to the first.

They may be among the first to design grid fins that can withstand reentry conditions.

Supersonic retropropulsion is an important technology for Mars and it's effective on Earth too.