NASA fires up RS-25 rocket engine for first time in 2022
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- เผยแพร่เมื่อ 23 ม.ค. 2022
- NASA conducted a hot fire test of the RS-25 rocket engine at the Stennis Space Center on Jan. 19, 2022. -- NASA getting SLS megarockets ready for crewed moon missions: www.space.com/nasa-building-s...
Engine power levels: 80 percent to 111 percent
Test Duration: 8.5 minutes (500 seconds)
Credit: NASA Stennis Space Center - วิทยาศาสตร์และเทคโนโลยี
If anyone is wondering why it shoots fire in a lazy way after it gets shut down - the initial shutdown is accomplished by closing the liquid oxygen valve and the engine keeps purging itself with hydrogen and shooting flames out but without creating any significant thrust as there isn't any oxygen to burn the hydrogen. The flow of hydrogen is still pretty high right after oxygen is cut off as the turbopumps are still spun up and the flow decreases as they despin. After a couple of seconds a hydrogen valve is closed and the flow stops completely. The reason for that is to accomplish a fuel rich shutdown. An oxidizer rich shutdown is damaging for this engine as it would cause serious corrosion to sensitive elements. For this reason the external tank on the space shuttle carried more hydrogen than oxygen, that even in the unlikely event that the engines couldn't be shut down - they would shut down fuel rich on their own as liquid oxygen would get exhausted first.
Better to burn rich than lean, some things never change
Kinda like an oxi-asetaline torch
Coming from a non technical, non science background.. I couldn't understand anything you wrote, but it was very nice to read...
Yeah the RS-25 runs fuel rich in order to make an engine run oxygen rich it needs very corrosion and heat resilliant walls or else it wil melt and get destroyed
@@lastdolphinator4033 opposite to an oxy acetylene torch. To extinguish it, you turn off the fuel. Not the oxygen. Turning off the oxygen first, causes thick soot deposits on and inside the nozzle.
ahhh.. the cloud factory. so magnificent.
You mean chemtrails...
@@GSCt1000
Uh, does water count as a chemtrail?
@@jackmerry1972 depends on how paranoid you can be. That would sounds like lvl10 paranoia unlocked.
@@GSCt1000 The rocket exhaust is water vapor. The propellant that is used is liguid oxygen and liquid hydrogen with water as the exhaust product. Can't tell if you are being sarcastic, but it's tough to tell with all the trolls online these days
@@spreeboc there is a saying.. I don't know who said it, but it goes something like this...
Never argue with an idiot/moron, they would bring you down to their level and beat you with experience.
I try to live by that saying.
Lol..😉
That cooling is really something else, thanks Everyday Astronaut for the expanation!
frozen solid on the outside while metal melting hot in the inside.
@@Boemel well the idea is that its not melting hot on the inside
@@theaveragepro1749 "well yes but actually no"
Hydrogen flows through tiny tubes in circles all around the exhaust nozzle and then goes for combustion. Very efficient and effective way to keep the exhaust nozzle from melting or damage !
@@Boemel freezing on the outside, scorching on the inside
I was stationed at stennis space center when I was in the navy. That stand was about 4 miles from my building, which was built to be basically indestructible from storms. Those engine tests would rattle the hell out of our building like the world was about to end. I was lucky enough to be invited to one of the tests and it was incredible. Those folks are awesome.
ALL LIES NASA (NAZI) NOT A SPACE AGENCY THIS IS FOR BLOCKING THE SUN AND STOPPING MELANIN FOR BLACK PPL AND CREATING STORMS HEATED AND CHANNELED BY HAARP. THEY HAVE THESE MACHINES ALONG OUR ANCESTORS FARMLAND ON EASTCOAST AND DOWN SOUTH AND CALIFORNIA. THEYVE BEEN SAYING FOR SPACE BUT LIES NASA WAS CREATED AFTER FREEDOM ACT 1950. JESUS WASNT WHITE. DAMN SURE DIDNT SAY WEAR WHITE SHEETS ON YOUR HEADS, HANG BABIES, BURN CROSSES, RAPE, and SHOOT US IN THE BACK EITHER. THEY KILLED WITH HATRED AND IN GODS NAME. SICK TWISTED. GOD DIDNT HATE. CAUCASIANS WERE MAD THEY DIDNT HAVE THE ORIGINAL GOD CONNECTION SO THEY HIT US WITH HATRED FOR THEMSELVES AND CALLED US ENGER OR NGR AKA THE “N” WORD BECAUSE EYGPTIANS CALLED THERE PHARAOHS ENGER NGR IT LITERALLY MEANS “THE GOD”. CAUCASIANS ATTACHED PAINED TO IT. THIS IS WHY WHEN BLACKS USE IT AMONGST EACHOTHER IT’S EMPOWERING. THEYRE TRYING TO ALTER OUR MITOCHONDRIAL DNA IN OUR MELANIN WITH VACCINES. WE ARE SUPERIOR. WE POPULATE THE EARTH. GOD MADE GODS AND THEY MADE SPACEMEN. SINCE CAUCASIANS DIDNT HAVE ORIGINAL GOD CONNECT OR KNOWLEDGE OF SELF. THEY BEAT AND STOLE IT. SO NEXT THEY CHOSE TO USE MONEY FOR WHITE SUPREMACY. (TINY COCKS). THIS IS WHY THEY ARE CONSIDERED WHITE DEVIL/SATAN. THE ORIGINAL MAN, THE BLACK MAN, HAS THE CHOICE OF THE GIFT & THE CURSE. THIS WHY GOD SAID KNOW THYSELF. THOU SHALL NOT KILL. FORGIVE AND THOU SHALL BE FORGIVEN. THEY ARE GOING TO HELL, THEY REPRESENT SATAN.
@@iamhim77777 go take ur meds...bc u r crazy af.
Thank you
@@MrWfurman We can handle our own problems satan. Swim back into the mountains and caves. The caucasians (weak bones) produced the little vitamin D there bodies needed within themselves. (Imitation)
@@MrWfurman Melanin production is decreased. Please sit down Satan. The Bible and Quran stop at the Nwo because it’s time for the original man, the black man, God, to lead. We will write the new code of conduct. Peace be upon his worthy servants.
Talk about INSANE engineering. How it doesn't crush itself is crazy.
Check out everyday astronaut. They do interviews with musk and break down how this tech works
@@religionisapoison2413 And a complete guide to russian rocket history.
The cool part about hydrolox engines is the cryogenic water ice crystals (from the exhaust) that form on the edge of the engine bell, with 3500 C gas flowing less than a millimeter next to them.
There's water everywhere in the atmosphere that is condensed all over the engine bell and engine piping above (quite apparent) because super-cooled liquid is actually being piped all through the engine bell to prevent it from melting.
That is because they run the super cooled liquid Hydrogen through the exhaust bell-housing to cool the exhaust bell housing. those rings you see around the bell are the cooling pipes. So the bell housing is super cold from cooling system. If you remember the shuttle, there was white vapor that was venting from the engines (like you see here) just before start... and at starting the sparks you see are to burn off any left over Hydrogen venting. Do you think its cool to drop ice cubes in hot tea? No difference here.
@@ILSRWY4 Yes, that is why I mentioned it. Nifty piece of engineering. You're probably right though, the ice buildup is atmospheric condensation being drawn along the engine bell and ultimately grows ice fingers along the edge with the blue glow behind it. Beautiful. There are videos that show engine tests where huge and surprisingly long stalactites form.
And I thought I knew stuff....
it actually helps keep the bell from melting itself as well
Wow, just seeing it run and run... The power behind it, amazing. Rocket engines look impressive in flight, but seeing one sticking around long enough to appreciate its design and function, just wonderful.
Can you solve this
34 : 75 :: 25 : ?
a) 66 b) 126 c) 131 d) 130
Correct answer is avalable on channel in last video comment box pin...
th-cam.com/video/ZCz2gMqMMek/w-d-xo.html
8.5 minutes of sheer brute force. I am in awe of SpaceX's raptors, but the RS-25 will have a special place in many a heart I assume. It's just a really really good engine. And I am in disgust that it has been demoted to expendable in this day and age....The shuttle could be called a partial SSTO vehicle, the only parts that detach during ascent are the SRBs which are technically not part of a stage, and the ET is dumped when only a few hundred m/s short of orbit after which the OMS does the rest.If it had been up to me, I would have advocated using one of the shuttles for an aerospike engine refit. The damn engine was mostly developed, the only big issue to be addressed was the heat buildup, which meant a full vacuum test (in space) would have yielded a ton of data. The shuttle would have been an excellent fuselage. And they were available after the retirement....... But the aerospike project was axed, and the shuttles refitted as museum objects. From what I know and have seen, the aerospike could have been viable, and given us a leap forward in rocket propulsion. Sometimes overengineering can yield way more than the disadvantages it presents. Engineers are learned a rule of thumb: do not overengineer. But the Germans do it quite a lot, and whaddaya know...their products are often the best in the world...as long as one takes the necessary time and does not cut corners.
@@paulmichaelfreedman8334 I tend to agree with all of what you say. If you look at what NASA accomplished during the "space race" from suborbital to manned Moon landings and Skylab in such a brief period of time, it's incredible. SpaceX is doing many new things, and doing them well, while NASA is encumbered by bouncing budgets and changes in goals with each change in government administration. Long term goals get lost along the way, if they truly existed at all.
@@stocktraderankit 69
How do rockets propel, accelerate & break, in your Vacuum of your imagined Space! Go.
seeing that pickup truck in the foreground really puts it in perspective
If you watch the video of the test of the SLS booster with the four RS-25 engines, you can see where the massive water vapor cloud is actually generating quite the rain storm a little ways downwind.
Look at this. its so cold and so hot at the same time its amazing. the power is incredible to imagine.
Easy to find go read about it .
It always amazes me to see the extreme difference in temperature between the inside and the outside of the nozzle, crazy engine cooling voodoo😂
@@Manufak The Merlin 1D rocket engine does have cooling channels in the nozzle wall. It doesn’t look like other engines with regenerative cooling channels because of the way it is made.
Most classically made regeneratively cooled engines have combustion chambers and nozzles made up of a very large number of tubes which are bent into shape and then brazed together. This is ideal for cooling, but tremendously time-intensive to manufacture. SpaceX instead is using channel type construction, where the nozzle and combustion chamber are formed as a single piece of metal, and then the cooling channels are etched or milled as channels into the metal. A sealing layer is then brazed over the open channels to seal them and turn them into individual cooling tubes. It’s slightly less mass-efficient, but much easier to build, and when you’re trying to launch a rocket every 2 weeks and each rocket needs 11 engines you really need to optimize your production time.
The Merlin 1D vacuum version has an additional nozzle extension which doesn’t have cooling lines in it at all. Instead, they use a combination of radiative cooling and gas film cooling. The exhaust from the turbopump is injected just above the nozzle extension and helps shield it from the engine exhaust.
@@Manufak Say you know nothing about rocket design, without saying you know nothing about rocket design. Not knowing is okay, spouting nonsense as truth is stupidity.
@@Manufak *its almost as if the the engine glowing red hot was actually one of the ways the merlin engine uses to cool itself!* But hey, what do I know, I am sadly not as much of an expert as you.
Check out the SABRE engine (Synergistic Air-Breathing Rocket Engine). It has to cool supersonic air from +1000°C to minus 150°C in under 1/100 of a second. That's tens of thousands of litres of air being cooled by that margin every second... Absolutely mind-blowing.
yea you can barely see it at 720p huh
The design of the RS-25 is from the early '80s, but it still is the most efficient staged combustion, fuel-rich rocket engine in existence...
it was designed in the 70's
@@ashleymiller7439 and it blew up a lot during initial testing in the 70s. Now it's the most reliable liquid fuel rocket engine.
Wonder what SpaceX will achieve in 50 years with their engine.
@@EddyKorgo lol hopefully SpaceX will have been bankrupt for 49 years by then. Its sad to see the government funds for space related stuff go to the absolute con-man that is Elon Musk.
@@Ragnaroz6000 Lol. If EM is con man, then who is Jeff? BO is here for 2 extra years in comparsion with SpX and they have exactly nothing... Or how Boeing got beaten by Spx in Commercial Crew programme that was also nice.
I wonder what those two swing arms are for that your see pivoting back right after ignition. Maybe cameras to capture views of the ignition process? Gotta love the two blue porta-johns at 1:17.🤣
Imagine taking a dump then hearing that going off behind you!
@@kerbdogrule It would be the last thing you heard. You'd quickly be rendered permanently deaf.
Won't get excited until they start actually making deadlines. This SLS has had so many set backs and problems that if SpaceX flies the starship before this gets off the ground they just need to put the SLS outta its misery.
Agreed. This is a federal jobs program plain and simple. If they aren’t flying, then they should have their budget cut to zero.
*Loved the video, thank you for sharing!*
Watching it from the outside is like witnessing a portal open up to the fiery depths of hell only to release legions of smoky demons into our world.
This is so impressive... the pure power.... i love it!
The engineering behind that is incredible.
I started building those rocket nozzles back in 1975 when production started I finished the last one on 1993 when the company shut down The rocket nozzle was made entirely of 718 inco.
Love it! So excited to see a crew land on the moon again. I'm sure there will be some amazing footage.
They're going back to the moon again? Sweet!
rs-25 remembers me the space shuttles...good times.
Ahhhh, yes, I remember Columbia.
⚠️
¹Do not remove sandbags from top of engine prior to ignition !
²Also not during test !
Excerpt from the rocket engineers booklet °
Wow, I've had a blast, the parked pickup truck was great for scale. 🌬
Gosh dang they run those things for so long! Its gotta be some of the longest runs of any rockets.
8.5 minutes is the same amount of time that the space shuttle engines ran. This is the same engine that was used on a shuttle.
That pickup and porta-john really put things in perspective in regards to size of this engine
8:17 What causes the flat area on top of the plasma?
It's not actually a plasma, and what you're seeing is a Mach Diamond that occurs in a supersonic exhaust flow while operating in a atmosphere.
They are caused by sudden changes in density and pressure within the exhaust.
So what is happening as the shock diamond (is that what it is?) lowers and appears to get smaller between 5:13 and 5:25? Is that the program that throttles the engine back so as not to exceed 3g on the crew?
love seeing the nozzle edge section, ice chips break off but the surface re-freezes in seconds
and then the ice nearly completely melting after shutdown but few seconds later re-freezes again over most of the bell
The sad thing is that these engines are disposable on the SLS, unlike Falcon 9 or Starship engines.
I mean the RS-25 has been used since Elon was 10 years old
That’s nice. No current SpaceX rocket could fly to the Moon in reusable mode. Can’t be done. Ergo, going back to the Moon means doing things differently. You may not love it but too bad.
Such fine engine does not deserve to be dumped into ocean after one burn.
They dont really have a choice
Clint: "Deserve's got nothing to do with it."
@@farel9476 they could design something better than the piece of shit SLS
wow, that power is insane.
you can see the launch profile in the mach diamond, even max Q then throttling back for reduced atmosphere and mass prior to shut down. It does seem a different profile than a spacex f9?
I've been watching "Rocket Science" videos, still Crazy how the outside of that bell 5:37 is freezing over even though the temperatures blowing out can incinerate that Material.
Madness! & how they achieve that balance is ingenious
🤯
if you wanna watch a neat video about this: th-cam.com/video/he_BL6Q5u1Y/w-d-xo.html
Engineers love to play with thermodynamics.
How they achieve that balance is also why these things cost 100M a pop. compare that to the
@@Bellabong yeah it was kind of an absurd idea to use these engines designed for reuse only once
These machines are some of our species' most beautiful creations. Also, this engine sounds SO clean and smooth. Well done NASA
Nice 8+ minute burn too ! without the slightest sign of a hiccup , so smooth and reliable
RS - 25 is my favorite rocket engine
may I include particles accelerators and Fusion nuclear plant?
species' not specie's :)
@@stuartjohnson5238 thanks, it was a hte typo
ALL LIES NASA (NAZI) NOT A SPACE AGENCY THIS IS FOR BLOCKING THE SUN AND STOPPING MELANIN FOR BLACK PPL AND CREATING STORMS HEATED AND CHANNELED BY HAARP. THEY HAVE THESE MACHINES ALONG OUR ANCESTORS FARMLAND ON EASTCOAST AND DOWN SOUTH AND CALIFORNIA. THEYVE BEEN SAYING FOR SPACE BUT LIES NASA WAS CREATED AFTER FREEDOM ACT 1950. JESUS WASNT WHITE. DAMN SURE DIDNT SAY WEAR WHITE SHEETS ON YOUR HEADS, HANG BABIES, BURN CROSSES, RAPE, and SHOOT US IN THE BACK EITHER. THEY KILLED WITH HATRED AND IN GODS NAME. SICK TWISTED. GOD DIDNT HATE. CAUCASIANS WERE MAD THEY DIDNT HAVE THE ORIGINAL GOD CONNECTION SO THEY HIT US WITH HATRED FOR THEMSELVES AND CALLED US ENGER OR NGR AKA THE “N” WORD BECAUSE EYGPTIANS CALLED THERE PHARAOHS ENGER NGR IT LITERALLY MEANS “THE GOD”. CAUCASIANS ATTACHED PAINED TO IT. THIS IS WHY WHEN BLACKS USE IT AMONGST EACHOTHER IT’S EMPOWERING. THEYRE TRYING TO ALTER OUR MITOCHONDRIAL DNA IN OUR MELANIN WITH VACCINES. WE ARE SUPERIOR. WE POPULATE THE EARTH. GOD MADE GODS AND THEY MADE SPACEMEN. SINCE CAUCASIANS DIDNT HAVE ORIGINAL GOD CONNECT OR KNOWLEDGE OF SELF. THEY BEAT AND STOLE IT. SO NEXT THEY CHOSE TO USE MONEY FOR WHITE SUPREMACY. (TINY COCKS). THIS IS WHY THEY ARE CONSIDERED WHITE DEVIL/SATAN. THE ORIGINAL MAN, THE BLACK MAN, HAS THE CHOICE OF THE GIFT & THE CURSE. THIS WHY GOD SAID KNOW THYSELF. THOU SHALL NOT KILL. FORGIVE AND THOU SHALL BE FORGIVEN. THEY ARE GOING TO HELL, THEY REPRESENT SATAN.
So powerful that is almost looks like a solid object coming out
Space x : tries to fly to mars, invented self landing boosters.
Blue origin: creates commercial space flights
Nasa: turns on an engine
Unbelievably, but that RS-25 actually has moving parts in the form of it's turbo pumps that force the liquid oxygen and hydrogen into the combustion chamber. The turbine and impeller spin at 100,000 RPM!
With a seal between the two sides made of... helium, so the oxygen and hydrogen can't mix, in the eventuality the o-ring may leak...
Those turbo pumps will empty an Olympic sized swimming pool in 25 seconds
Nothing special as far as the impellers and turbines are concerned..., The average small turbo in a car spins at anything up to 140-150,000rpm running in a pressurised oil bearing, depending on loading👍
@@kf8575 you're a great example of Dunning-Kruger.
@We All Laugh Down Here The engineering challenges when designing these turbo pumps make a car turbo more similar to a match stick.
I’d like to see the “hold down” bolts or whatever keeps this beast from going airborne!!
Half expected it to tip the launch platform
Word to Big Bird
That is the longest test I have ever seen, I didn't even think they ran for that long in an actual launch
actually, since these were used on the shuttle, they would run all the way until orbit, and only the would the OMS fire up. And a trip from sea level to space takes around this amount of time depending on the launch profile
Now we call that a super chilled engine ignition
Very impressive but it still makes me a bit sad to realise that these wonderfully reusable engines are being prepared for a use-once-and-throw-away operation.
A single time use engines are cheaper to build and better economically. Like a cardboard packaging of your bigmac. Don't fell into the spacex marketing hoax. Using an expensive reusable RS25 for a single run mission is of course an pricey overengineering.
@@pahom2 good thing that after 4 launches they move to expendable variant, although tbf, they already had those engines, they didn't cost them much
@@pahom2 "A single time use engines are cheaper to build and better economically. "
The advantage of single use is you're making scale economy by producing more.
....
spaceX now produce more engines than any other group (and certainly more than blue origin lol ), so ironically they also have better scale economy than other constructors.
Hard to see a trap there.
@@ballom29 and they could've produce engines cheaper if not make them reusable to fulfill stupid musk wishes. A shortlist of his wishes includes: to make engines reusable to make rocket look like a cartoon, to launch russian ballistic missile to Mars to drop pots with domestic flowers over the surface. He is not an engineer he is not a scientist, he is just a spoiled guy with leadership power and his wishes are stupid both practically and economically.
@@pahom2 And neither are you, you are just a twitter sheep who open his mouth on subject you have no knoweldge of.
Zero argumentation, only namecalling based on your feeling because you know nothing.
why his idea are stupids ? -> because they are dumb lol .
Want to prove how wrong I am ? then EXPLAIN me with facts and with more than insults WHY his strategy is flawed then ?
Just imagine how large of a battery pack would be required to thrust the same amount of energy.
Like, a BIG one, bro.
I'm sure someone will correct me but another test ran 535 seconds and burned 60,000 gallons of hydrogen, so I'm figuring 112 gallons or 425 liters of liquid hydrogen per second. Liquid hydrogen has about 8MJ of energy per liter, so that's about 3400MJ per second, or ~3.5GW of power. The 100kWh battery in a Tesla has 100kW * 3600s = 360MJ of power. So to power the RS-25 you'd burn about 9 and a half full Tesla battery packs per second. At 500 seconds, this burn would require 4750 batteries weighing a total of ~3200 tons.
That's just for one RS-25, which isn't enough thrust to do much of anything. SLS will have about 20 times that amount of thrust at liftoff, burning almost 200 battery packs per second. SpaceX is targeting roughly twice that amount of power at liftoff with 33 (as of now) Raptor 2 engines, burning about 400 battery packs per second. Do a search for 400Hz on youtube to hear what that rate sounds like.
@@jcims something tells me you’re a chef. Ha! All jokes aside, I’ll look into that because I’m definitely fascinated with it.
Tesla: hold my beer. Lol
Fabulous! Is it showing variable throttle settings?
The thing that gets me is how they pipe the fuel all around the nozzle to use the fuel as coolant. When the engine started, the nozzle was black and after a while, the black is actually white. Does that fuel cool so much that it actually ices-up on the outside of the nozzle/bell while all hell is breaking looks on the other side?
10mins of awesomeness 😮🦋
People in 1950: In 2022 people will be able to control the weather, for example create clouds!
People in 2022: 6:11
Always amazed to see that the bright flame begins only a short distance from the bell
That’s the Mach diamond you’re seeing. You’ll notice the flame gets compressed as it exits the engine bell; this is from the pressure of the atmosphere and this is also what causes that effect.
I have a Question: where is all the fuel stored? I mean at a rocket I think most of the weight on the launching table is oxygene and fuel right? Is it stored external or also in the test building? And also how the earth temeprature is effecting the engine as the cooling situation in space in probably more easy? Thanks for any answers :)
The fuel (liquid hydrogen) and oxidizer (liquid oxygen) are stored in two large tanks at the top of the building above the engine.
Not sure about the temperature regulation regarding burning for the entire duration at sea level vs during an actual mission but I would guess it is negligible here. During a real mission though, there are 4 engines next to each other in a square, plus two extremely hot solid rocket boosters at the sides that heat up the engines a lot, so extra protection is needed on the real thing.
That's some VERY IMPRESSIVE control of fire 🔥🔥 right there... 😲😲
Keep up the great work, NASA ! 👍
M 🦘🏏😎
Rocketdyne is the manufacturer. 😊
M kangaroo cricket glasses?
I wonder how much it cost to run tests like that?
@@halo20678 its steam bro h2o
@@halo20678 turkey is a turkey
@@petemisc4291 you think space rocket launches are good for the environment. 😆 🤣 😂
@@halo20678 do your homework
@@halo20678 if throughout human history we did only things good for the environment, we would still be living in caves eating raw meat and shifting in a dark corner.
It's a pity some NASA engineer hasn't thought about getting the waste heat from the engine burn to generate electricity for the site.
The little white Toyota truck looks surreal next to the exhaust gate. Wonder what the decibel level is a few yards form the bell?
These RS 25s were reusable and served the Shuttle for 3 decades. Now instead of retiring in a museum, they are going to be put on SLS and be disposed off every launch. In 3 launches these 12 engines will be no more, What has happened to NASA?
Congress forced nasa to re use old shuttle tech and make rocket instead of ecpriment with new reusable ones as they own stocks of those companies.
Nasa has lost the money
@@farel9476 Nah that's the opposite, they have the money, but are forced to spend into into what the congress want.
@@ballom29 i know. But 20 billion is really not that much tbh. Their budget is decreasing over time Since the space race ended
@@farel9476 disclaimer : i'm not saying space shouldn't get money...the total opposite.
And that's the problem with the SLS, it run dry NASA from the little founding they have instead of beign able to spend it on better projects.
Can you imagine an S-II with 5 of those outputting 2.5 million pounds of thrust?
They would need to be completely redesigned if you want to ignite them midair. For now the strap on booster approach of the SLS is the only viable option with them.
I worked on the b2 test stand and let me tell you this video does no juice to the scale of what’s going on here . Wow
Back to the Moon we go.What a beast.
I need a tiny version of this to restore the humidity in my house.
Any combustion produces water so just burn it down
@@shigekax Yes... And that way I would only need one source of heat and humidity.
Such an incredible engine they're just going to chuck into the sea after a single use.
i know it upsets. the duck out of me
Was the fuel pumped to the building, or provided by local reservoirs? It seems odd to last so long - the burn to launch something to moon really takes that long, or they just had it on for test purposes ?
The first stage burn is about 8 minuts long, with 4 of theses rs 25. But then the second stage has to provide a bit more impulse to go to orbit, and relight one more time to go to the moon
My neighbours BMW when he starts it in the morning 3:33
For anyone wondering, this engine is based in the RD-35 Soviet family engine, in 1991 there where a cooperation of the USA and Russia and they sold the blueprint of those engine to NASA you can know more about this cooperation here th-cam.com/video/Y-xyXDiC92s/w-d-xo.html
Thanks for he background information on the RD family of Soviet rocket engines!
RL
Where'd you get that information? The engine is entirely an American creation, harking back to the J-2 and HG 3 in the 1960's, from anything I've seen.
@@mosienko1983 here th-cam.com/video/Y-xyXDiC92s/w-d-xo.html is an amazing video about the entire Soviet rocket family. There is many US rocket using soviet RD- and NK design rockets
I dont think that this is correct. The soviet stages engines were oxygen rich in the turbo pump while the RS-25 is fuel rich. This change would mean almost completely different engines. Not to mention that staged soviet engines were all kerolox or hypergolic while the RS-25 is hydrolox, again meaning that a completely different engine would have to be made.
This design is from the 70s so no
It’s a giant fog machine
SLS has same design with SUTURN V. Good Job!!!
I know these might be dumb questions, but which way is that nozzle pointing? Down or out the door? That exhaust is 100% water vapor, right (2H2 +02 = 2H2O)? Or is that the water from the deluge system flashing to steam?
The nozzle is pointing down, and yes, the exhaust is pretty much just water (and some ozone), but that does not produce the large amounts of water coming out of the testing facility.
It is the deluge system, as you said, but most of it is not steam (some is of course, the engine exhaust is really really hot). Most of it is just water beeing sprayed away like in a garden hose.
I thought it was rupees 25 rocket 🤣🤣
Well thats an extreme way to clear covid away
Forget Covid. More like the entire neighborhood downwind.
how many gallon of fuel that they need to put for this testing??
So did they pull this out of Artemis 1 for more tests? or is this an initial test on Artemis 2 hardware?
its a different engine, perhaps they might replace
All right! Lets throw away four of those engines designed to be reusable many times with every launch! The SRBs, too!
That's what Government does best! Waste Waste Waste
Although I too cringe at the idea, being demoted from reusable to expendable is a crime nowadays. But the RS-25E will be used after all the normal RS-25s have been expended. The RS-25E is much simpler in design, and thus "cheaper" (note the quotes!) which makes sense.
It will be such a shame to see the beautiful engines be tossed Willy nilly into the ocean.
imagine standing below there💀💀
I can't believe I watched 4 minutes of a rocket standing and firing, and still I got chills!
Man!
I'm so flipping hyped for the launch! Artemis, grab your shield. We're going to the moooooooooooooooooon
Mesmerizing!
All I care about and would love to see. What the ground below that rocket looks like. This is the ultimate marshmallow roasting tool 🤣
Magnificent
I get that feeling every morning when I start me Ford Ranger 3.2
This is Arnold's torch lighter when he smokes his stogie.
Imagine dropping a grumper in one of those portapottys when that thing was fired.
I was waiting for the building to lift off.
1:30 Tundra standing there like a boss ! Dont give a single flying fuck !
How hot do you think it got directly beneath the rocket nozzle?
Would be neat if they did a sideways burn In the open just to see how long that flame is.
Производство облаков :)
That's the long run. I wonder whether the Raptor will take place in such a long tests
Nice boiler to warm the planet
Is LIKE a beast.
Wonder how many decibels it is standing by that handrail 🤔🦻
cant wait to see it on sls in give or take 5 years when they decide to actually launch it
What is the gas/smoke/exhaust made of?
the fuel is hydrogen and oxygen, so the exhaust is only made up of water vapor
The amount of force needed to hold it down to ground
My new ringtone!
Does anybody know the SPL if you were standing right next to us?
How many hp is that engine pushing? I know its kN but just wondering if its possible to convert the power
37 million horse power
@@shrodingerscat8940 wow.. amazing that the turbine can stand such force.. is the vital parts in the engine made of titanium?
@@jonasaa88 The engine made use of a new Rocketdyne-developed copper-zirconium alloy (called NARloy-Z)
@@shrodingerscat8940 alright. Thank you for the answers bro. Ive been really fascinated by rocket engines after i watched everyday astronaut's series. Amazing technology
It’s a beautiful thing
Must rain alot around there
Fun fact, it's not safe to touch the outside of the nozzle while the engine is running because your hand would freeze!
How do you measure the thrust of an rocket engine? With a big ass scale?
The engine assembly is mounted on steel beams that deflect from the insane thrust. Load cell transducers are compressed by that deflection and give a reading from which the thrust may be calculated.
Fire and Ice. Love it.
So much power.
Sweet!