Another Raptor Engine Eats Itself |
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- Опубликовано: 7 сен 2024
- Test Description:
An anomaly with a Raptor Engine at SpaceX's McGregor test site occurred at 3:09:10 PM CDT on Monday, July 15, 2024. The Raptor Engine, which was tested on the Raptor Tripod test stand, ignited at 3:07:47 PM CDT, and fired for approximately 84 seconds before an anomaly occurred which resulted in a phenomenon known as engine rich combustion, resulting in a premature end to the test. It is unlikely that the cause of this anomaly will be publicly disclosed.
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Anomaly Description:
When off-nominal conditions occur in rocket engines, it is possible for the engine to undergo a phenomenon known as "engine rich combustion". This is when the superheated exhaust from the engine starts to corrode the nozzle. When this happens in a raptor engine, the exhaust turns green as copper, the material used in nozzle, burns away.
It is possible that the anomaly that occurred was not engine rich combustion due to the lack of its characteristic green color.
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My Thoughts on the Test:
The following is just my opinion and should not be taken as fact.
I believe that these recent engine failures are attempting to recrate the conditions that led to the engine failures on IFT-4 in order to better understand them and to improve reliability on future flights.
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Footage of this event is from @NASASpaceflight 's McGregor Live stream which provides live views of all tests from the McGregor Test Facility.
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McGregor Live:
www.youtube.co...
See Also:
Starbase Live:
www.youtube.co...
Space Coast Live:
www.youtube.co...
*Disclaimer: My channel is not ment to criticize or discredit the efforts of SpaceX or any other companies. Please keep in mind that this is, quite literally, rocket science, and things are bound to encounter issues from time to time. The goal with my channel is to provide an archive of interesting rocket / rocket engine tests. I do not seek to gain a profit from these videos nor do I seek to claim the work of others as my own.
Test Description:
An anomaly with a Raptor Engine at SpaceX's McGregor test site occurred at 3:09:10 PM CDT on Monday, July 15, 2024. The Raptor Engine, which was tested on the Raptor Tripod test stand, ignited at 3:07:47 PM CDT, and fired for aproximetly 84 seconds before an anomaly occurred which resulted in a phenomenon known as engine rich combustion, resulting in a premature end to the test. It is unlikely that the cause of this anomaly will be publicly disclosed.
___________
Anomaly Description:
When off-nominal conditions occur in rocket engines, it is possible for the engine to undergo a phenomenon known as "engine rich combustion". This is when the superheated exhaust from the engine starts to corrode the nozzle. When this happens in a raptor engine, the exhaust turns green as copper, the material used in nozzle, burns away.
It is possible that the anomaly that occurred was not engine rich combustion due to the lack of its characteristic green color.
__________
My Thoughts on the Test:
The following is just my opinion and should not be taken as fact.
I believe that these recent engine failures are attempting to recrate the conditions that led to the engine failures on IFT-4 in order to better understand them and to improve reliability on future flights.
___________
Footage of this event is from @NASASpaceflight 's McGregor Live stream which provides live views of all tests from the McGregor Test Facility.
___________
McGregor Live:
ruclips.net/user/livecOmmvhDQ2HM?si=sFCPLJk5vcLeK0Kf
See Also:
Starbase Live:
ruclips.net/user/livemhJRzQsLZGg?si=X_rkk4mz9_mqM052
Space Coast Live:
ruclips.net/user/liveJm8wRjD3xVA?si=fdwtqDgwVMspUR8n
*Disclaimer: My channel is not ment to criticize or discredit the efforts of SpaceX or any other companies. Please keep in mind that this is, quite literally, rocket science, and things are bound to encounter issues from time to time. The goal with my channel is to provide an archive of interesting rocket / rocket engine tests. I do not seek to gain a profit from these videos nor do I seek to claim the work of others as my own.
You will never make a good politician that way..
@@morganoverbay8783 What?
@@HughMann way too much info and truth. And you obviously researched your subject. polyticks just dont DO that.
@@morganoverbay8783 I dont think he is trying to be a politician...
They are testing and that includes finding the limits of its performance.
Yees is true🔥🔥🔥
Never seen that when NASA is testing.
That's why Nasa's blew up on missions
NASA does simulations not tests (usually), that's why they don't push to the limits. NASA is also a government agency and they will get a bad reputation if they do
It might also be testing of the manufacturing and QA process. Squeezing more 9's out of you're manufacturing yield eventually coats more than just putting them on a stand and watching a few of them RUD. If the $ numbers from the internet are to be believed, then they could afford to loose 1% of engines on the test stand in order to save
At least it wasn't one of those pesky "rapid unscheduled disassemblies".
But those are more fun
"I believe that these recent engine failures are attempting to recreate the conditions that led to the engine failures on IFT-4" Good point. Most people don't understand how inherently dangerous spaceflight still is. The physics of chemical rockets will never change- and those physics are that chemical rocket propulsion is inherently dangerous. Millions of parts must work flawlessly... No matter how hard we try, nor how careful we are, mistakes will slip through.
@@ZombieGrandpa Yep. Even Falcon 9, with its hundreds of flights is prone to the occasional failure as seen by the Starlink 9-3 mission. I am working on a video right now of a possible recertification test campaign of 2nd stage hardware that occurred at McGregor today.
Everything built by man eventually fails.
@@yedidyah-jedshlomoh1533 Please keep in mind that this is a TEST SITE. This is where it is fine if things fail. They even test things to failure sometimes.
@@HughMann yes
@@yedidyah-jedshlomoh1533 Well said Sir. We are an imperfect species in a decaying universe. Everything goes South eventually.
That's awesome.
Then on another note why am I getting my balls busted for smokeless fuel on my fire stove 😂😂😂😂
It's all a trick of big corps shifting blame to us, but that's neither here nor there. 😂
At least Raptors can fail without losing the vehicle. Unlike many other rockets.
I assume these are Raptor 3. Once I knew what SpaceX were attempting with that engine, I figured it would be a long road to a finished product.
This was a test of a raptor 2
T
The exhaust did flash green for a split second at 1:24.
Wow. You have got some excellent eyesight. I would not have caught that. Thanks
Yup. A small burst, then a slightly larger one, then a stream, then the flameout. Looked like some of the bell burned away, maybe?
@@AenesidemusOZ That is what I am thinking
@@AenesidemusOZ Something made of copper was incinerated.
I see the larger flash of green at 1:26 but none of the green that preceeded it ... hard to tell on my smartphone's smallish screen.
Still a good catch.
This was a test to see if they could get to 350 BAR a new record. They achieved it for the first time in history. The engine did not fail, it performed with a almost flat line of 350 BAR. So NO it DID NOT EAT ITSELF. This was a planned test to see new limits and it worked perfectly.
@@CavemanGaming Where did you get this information?
Im sure that news is a year old lol
@@HughMannit ate itself but it wasn't a failure, SpaceX almost always makes their prototype engines fail to test it's limits
@@HughMann From SpaceX with full flow chart explaining the chamber pressure rise and stabilization at 350 BAR for the entire length of test with complete and proper shut down.
@@CavemanGaming When was this posted?
Well you should probably make sure the engine is well fed before performing a test next time, that might prevent this.
This seems like a pretty normal raptor shutdown to me
That bright exhaust before the shutdown (probably emergency shutdown) is not normal. It looked very fuel rich hence the bright yellow. A similar thing happened as starhopper was landing for example.
Green flash is bad mmk
Thrust of these engines are 30 to 40 % higher output of what SpaceX currently uses.
Basically we all know nothing for sure until SpaceX tells us. No one knows if this is even raptor ver 3 being tested
@@davidchristensen6908 Indeed
They are testing until breaking. They have already set a record with Raptor 3s. That also looked like a normal test.
Please note that this is not a Raptor 3 test. Also, the drastic change in color near the end of the test is not a nominal shutdown
"...and this is Huge Mann reporting!" :)
they test 110 and 115% to find the weakest components ❤
Hardware rich development! Blowing up an rs-25 would be like throwing away a hundred peoples work for ten years.
This is different from the Raptor testing failure back in May? I haven’t seen anyone else mention this one.
Yep. This test was much less destructive, so it wasnt covered by the media. Small engine failures like this one is not super uncommon at McGregor. It is a test facility, after all.
I've seen small blocks fail worse than that 😂
Wow. 22K views. That is insane. Thanks everyone.
Reminds me of an upside down bunsen burner at school!
@@flyingporker100 I kind of does. I never thought of it like that lol.
Always cool to see test stand operations of rocket engines. Do these operate at 3000 psi?
@@dougrigel1997 Indeed it is cool.
I sadly do not know what the operating pressures of the raptor are.
@@HughMann I looked it up. It is about 5000psi, 300 bar. That's nuts!!!!
@@dougrigel1997 Really!? Thats insane. I knew it was high but wow.
Most likely raptor V3 engine testing !
Could be
I guess it wasnt Raptor 3.
3 2 1 boom
Looks good to me.
It was a loose nut behind the wheel that caused this.
What?
How eco friendly is that test I wonder, ??? 🤔🤔🤔🇬🇧
Wasnt the engine that failed on that launch a second stage Merlin ?? K
@@thesink5723 Yes. A vacuum optimized merlin 1D engine failed on the second stage of the Falcon 9 on the mission Starlink 9-3. The failure of that engine was due to a leak of liquid oxygen on the second stage. I will not post video of that flight because it is already avalable on the internet. If you would like to see what a second stage test looks like at McGregor, you can check out my most recent video
I didn't see too much eating.
Engine rich? You mean oxidizer rich? The methane/oxygen valving system malfunctioned.
@@sempertard Engine rich combustion is when the engine nozzle is eaten away and ends up burning in the exhaust. I was not referring to fuel/oxidizer ratios
@@HughMann and the reason the nozzle got eaten away is due to too much unconsumed oxidizer, which means an imbalanced fuel mixture. So either too much lox or too little methane. The nozzles don't just decide to eat themselves.
I think you are making the mistake of thinking that "engine rich" is a formal engineering term. It isn't - it's a humorous reference to the condition where you have rather too much engine in your exhaust.
@@sempertard If anything, this engine was running fuel rich as seen from the orange/yellow color of the exhaust.
Elon Musk philosophy: If you’re not failing, you’re not trying, reaching far enough.
NASA philosophy: We don’t care, we don’t have to, we’re the government.
FAA philosophy: We’re not happy until you’re not happy.
lol
The oil well burning in the background
... " Mother Earth " is crying
Ahhh . . . no.
That is not an oil well in the background. It is a flame stack meant to burn off excess methane (a very harmful greenhouse gas) in order to reduce environmental impact.
@@HughMann I didn't think they would have an oil we'll that close
... much less one that's one fire !
LOL
impresionante
Awesome indeed
@@HughMann veremos muchos logros de SpaceX y que Starship un vehículo viable y operativo lo más pronto posible este es el camino
@@tomasbenedictomaza Indeed it is
Those are dangerous experiments. As the engine is solidly attached to the Earth, its inmense thrust makes the Earth slightly accelerate along the vector normal to the surface. With the repetition of these tests, our planet can cumulate enough acceleration to become dangerous for the orbit around the Sun and affect the Moon's orbit around the Earth.
It is important to carefully schedule these tests in different moments of our orbit and/or different places on our planet, to cancel the total excess of acceleration.
However, sadly, they dont take my advice seriously. I, as a representative of the ANSA (Andorrean Space Administration), have written several postal letters to NASA at no avail.
I hope that Neil D. Tyson, who is affiliated to both ANSA and NASA, can use his influence to warn NASA and Musk of this global menace.
PS: I know there are some flatearthers in NASA's board. Please, dont interfere with my advices, you are wrong. You are in the board just because of DEI politics.
😅😅😅
Yeah, well if they turned the engine round and slowed the earth and time we might all live a few microseconds longer.
No, no, no. Momentum is transfered in rocket engines by giving those hot flames out in a particular direction, where the hot matter and the rocket don't interact again.
With the rocket fixed to the ground, the rocket engine sprays out the hot gas, and yes, for a short period of time, there is momentum transfer.
However, the atmosphere slows down the hot gasses, transferring that momentum back to the air, which in turn, transfers it back to the earth, then back to the rocket, negating all momentum exchanges that happened with the engine.
If the rocket plume was both fast enough to escape earth's gravity, and was not hindered by the atmosphere, then I'd agree, but this is not the case.
We are safe.
Impossible ..... but You are quite Entertaining !! Give us something else .... Please !! ☺
Interesting theory, but no.
Click bunk!
Who are you and why are you reuploafing someone else's footage?
I am reuploading this footage because the livestream only allows you to rewind 12 hours and I would like to keep a catalog of noteworthy tests. I have given credit to the @NASASpaceflight for the livestream and have links to these streams in the description of every video.
@HughMann Hmm. I might be wrong, but I believe NSF's position is "no using our content without our explicit permission," so I don't think "credit" cuts it here. Maybe they'd be fine with it, but they've not been happy with people using their content in the past, so if you've not contacted them, I'd expect to be taken down. Maybe as this is from the stream and not a video, their policy is different. Just a heads up.
@@owensparks5013 Ive asked the moderator on the McGregor livestream and they said it was fine if I gave them credit and wasnt using the footage to make a profit
@@HughMann Ahh, that's totally different then. 👍
@@owensparks5013 Thanks for worrying. I really appreciate it.
Nonsense clickbait, a raptor 3 failed in testing to the limits...whoopty doo
@@danmurphy9387 Clickbait implies that I posted something that was intentionally misleading. I have simply posted footage of a raptor test that may or may not be of a raptor v3 test. Nobody outside of SpaceX can tell you that this was a V3 test or what was being tested.
@HughMann at McGregor your a fool
@@danmurphy9387 what?
@HughMann it's at the McGregor TESTING FACILITY. Testing to point of failure and you present this as "oh no another fail"
@@danmurphy9387 if you’re going to attempt to insult the intelligence of others, at least use the correct “you’re”
Time to blow the dust off the 1968 ACME rocket to dah moon book ! anyone still alive that can read, black and white? Yea, America Went to the Moon, My personal Yetti took me and my brother. By way of the north pole. Yep Brother jimmy still works as an Elf, For Santa.
What ever it is Elon will get it fixed, faster, cheaper and safer than Bowing or NASA could ever hope to…
BOEING
Right 👍, the guys that build the awesome jets.
B F D