SpaceX's New Raptor 3 Smashed The World Record!
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- Опубліковано 12 тра 2024
- Raptor 3 just smashed the chamber pressure record hitting 350 Bar during a test firing at SpaceX's McGregor, Texas facility. This pressure allows the engine to be even more efficient during flight. Watch as Jack breaks down what happened and what this means for spaceflight!
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2023(Gregorian) “Respect and dignity.” Furthermore:
Thanks for the amazing work you do. And awesome commentary too 🙂
🍾🥂
Well, you can of course measure in mPa (milli Pascal) ... but even 1 ATM (1 Atmosphere), which is ~1020 mBar (milli Bar) are already 1020 hPa (hecto [100] Pascal) or in 102 000 Pa (in words: one hundred thousand) or 0.102 MPa (Mega [Million, just like MegaByte] Pascal), 350 Bar would be 35 MPa or 35 000 000 000 mPa (35 BILLION [Milliard for proper maths] milli Pascal). Don't know why you would want to go that way, but sure. Just like the Brits, when the say Milliards say 1000 Million, though it would rather be 35 000 Kilo Pascal ... 🤔🤣
0:57 COMBUSTION CHAMBEEER was super annoying.... Plz don't do that
5000psi on top of dealing with all that heat is absolutely insane.
The metallurgists at SpaceX deserve a raise.
Why? 1 out of 6 destroy themselves
@@ToppledTurtle834still better then 6 out of 6!
@@ToppledTurtle834 because 1 out of 6 is as bad as itl ever be and it will only be improved from there
Bullshit!!! Which metallurgist!? They aren't better than any others lol!!
@sawyer post No, it won't...because failure is NOT an option. You know, like the engines for Apollo V Stage 1? NONE of them failed, DURING ANY LAUNCH.
Raptor is a mass-produced PROTOYPE, and is king of NOTHING except maybe FAILED launches.
One Raptor 3 is about 18 times more powerful than a B-1 Bomber jet engine at full afterburner. As a former crew chief on the B-1B, I find that absolutely insane!!
And that's just in terms of thrust. In terms of actual energy output it's even higher, because the exhaust is being accelerated to a higher speed.
I'm not sure exactly what the exhaust velocity of the F101 is, but somewhere in the ballpark of 800m/s seems reasonable. Raptor is about 3200m/s, or four times faster.
Usually kinetic energy would be squared, but in this case that's cancelled out by the decrease in mass flow, so it ends up being linear.
Still, that puts Raptor at around 75x more 'powerful' in terms of wattage/horsepower/etc. Raptor Vacuum would be closer to 100x. TL;DR: Rocket engines are insane.
Now imagine 33 of these bad boys all bearing down on a steel plate. Holy [expletive]!!!
Air breathing engines are going to have much less power than rocket engines. Obviously.
@@Connection-Lost
I don't see how that makes the insane power output of rocket engines any less insane.
Unfortunately it's not a jet engine lol!!! Totally different thing to even compare! The jet will have an amazing range on longer duration and is significantly way more efficient than a fuel guzzling rocket engine
"Rocket science" is actually quite simple. Rocket engineering is the tricky bit.
I was thinking about how some branches of science are quite simple, but engineering those concepts into usable systems is another matter.
It's simple but expensive.
I don't normally comment on these...enjoy them immensely and consider myself better educated after them. But this one. I swear I heard the crackle. Normally on testing at Mcgregor, you get the rumble. That thing wanted to take the stand with it! Awesome video, and as always, awesome commentary.
.....that thing wanted to take the stand with it....AWSOME!
I'm sitting here pondering exactly that... how much force can that engine stand withstand? 🙂
You probably meant megapascals (MPa) and not millipascals (mPa). I mean sure, you could measure chamber pressure in either one but 350 bar is 35 MPa or 35000000000 mPa.
Perhaps a more useful comparison would be 5076 psi, nearly double the pressure in your typical SCUBA tank.
It's also roughly equivalent to the pressure 2.2 miles underwater.
So yeah, it's a lot.
Ha, one of the first things the team noticed right after we shipped it. Can we go with "the larger number is more impressive" instead of "typo" heh. -Das
@@NASASpaceflight It's been a while since I last heard that excuse, LOL.
Or as they say in software qual testing: “it’s a feature, not a defect.”
Thanks for making this comment. I stopped concentrating on the video at that point, thinking one bar is about 100kPa, and it should be capital M. Had to rewind because I missed a bit because I was distracted.
To be fair, chamber pressures ARE measured in mPa, when measuring vacuum.
The Raptor engine is really looking impressive as SpaceX optimizes its design. This version 3 engine puts out more thrust than the RS-25 or BE4 engines while being less than half the size. Can't wait to see a fully optimized and operational version of the Raptor engine when development concludes:)
Matthew. Yeah, heck yeah. But look what Raptor 2's did to the launch mount.😮. Flame trenches AND water deluge system necessary for Raptor 2's. Gotta love SpaceX.
And it’s so clean looking too!
@@davidforget6906 With so much more thrust headroom they could have the engines throttled down a bit to protect the ground infrastructure and then quickly throttle up a few seconds after. Maybe?
@@iamaduckquack Yeah Duck, good idea they are probably planning already. And still more thrust to add a good landing legs system.
@@iamaduckquack It will hover longer, so it is a trade-of.
Speaking of progress, it's amazing how NSF videos keep getting better and better. Truly amazing content and it is highly appreciated.
Thanks!
7:00 what an awesome visualization!
Has anyone did this before? I have seen it that way. Absolutly crazy
We do it every month! It's actually a really slick script that queries our database of tests, pulls the footage, and assembles this layout automatically. We can even query by engine type or test stand.... -Das
@@NASASpaceflight You script kiddies :p
mPa and MPa are very different units, be careful or you might end up with a few more zeros than you intended 😉
Just seeing the plume itself, it really shows a vast improvement in thrust. Absolutely incredible to be able to watch this happen in my lifetime.
Yeah, that plume looked like 25% wider then the regular raptor 2 tests
So true, I love how much wider it looks as the gas comes out underexpanded and puffs out much bigger than the normal Raptor II tests.
Just a thought... Have you guys considered installing a seismograph (a cheap one) at the engine test sight location? It could return some useful information. Thanks, great work as usual.
Superb idea! I really hope they do this.
That was on the idea list for orbital, but just didn't have time to get to it. -Das
The sn11 flashbacks 🥺
The thrust is impressive but isn’t raptor 3 also going to be the cleanest design so far too? Elon mentioned that the engine itself shouldn’t need any heat shielding since there will no longer be anything fragile exposed on the engine. As well as RUD containment built into each engine.
Weird how seeing a massive rocket flame hot enough to liquify metal gave me full body chills.
The work SpaceX is doing is absolutely amazing.
Thanks NSF for bringing us these high quality updates!
Which other flame won't liquefy a metal plate!? Wtf!!!!
Great explanation thanks Jack and the NSF team. Throttling up after launch will be epic.
I can generate at least 0.01 Bar of chamber pressure. Intake fuel can be varied, though cauliflower has a particularly high energy density in this regard.
You are destined to remain on earth, although, every function of life holds some delight
😂
Underrated comment
Ever tried an igniter for additional thrust?
Great Update, NSF! Thanks!
Outstanding video, well done NSF 🫵👍
Reach new performance, simplify the design, improve reliability, then economize the parts. Rinse, repeat. The path to the stars!
Outstanding briefing. Thanks!
What great informational video, thanks guys. 👍👍
Love the video, love the new format, love the commentary. Thx a lot!
The test looked really clean. I noticed that the flame looked straighter and wider than the other lower pressure test. Does a higher chamber pressure mean that the bell needs to get larger or longer now for V3? And would that cause a problem with fitting them all in on Starship and Heavy booster?
I think if the increase in efficiency from increasing the chamber pressure outweighs the decrease from having a less optimal nozzle, I think SpaceX would accept the nozzle inefficiency for the overall increase in thrust or isp, especially for the booster engines.
Exactly. Higher chamber pressure with a "stock" nozzle means that gases as they exit the nozzle are not at atmospheric pressure at sea level (which is ideal for a rocket engine). But, there is no such thing as an ideal nozzle. Say you dimension it for sea level P°, as soon as you fly some, it's not optimum anymore. Thats why starship has both vaccum and atmospheric engines. If I remember correctly, you do not have to suffer these trade-offs with aerospike engines.
@@DisorderedArray what difference would changing the nozzle make? Better or worse or depends?
Great content. Well done NSF.
Outstanding! Gonna pass it around to my Space Cadet friends who aren’t ‘rocket scientists’ themselves; well done, team!
Waited around to the end to make sure V3 still has the honk. It would be a shame if design changes removed that.😆
We need more goose in our engines!
I think it will be more of a case of the developments being made making the Raptor a more reliable engine - if the chamber can survive 350 bar of pressure, like during this test, it will hopefully mean a slightly less powerful version having a greater safety margin. In theory if it survives 350 bar, it should be much more reliable at say 320 bar. Always good to have a large safety margin. Hopefully it will put an end to unexpected RUD's of Raptors.
I would bet they get it up to 370 bar followed by a pretty spectactular RUD
They gotta improve startup reliability too though. We still haven't actually seen a full 33 engines lit at once yet.
I don't think RUD's are the problem: it's just the prevalence of engine-rich exhaust.
@@javaman4584 and 42 engines finally, when Starship has 3 more
I wonder how a miniature rocket with just 1 raptor V3 engine would perform.
Would likely still be a big rocket. Medium lift launcher with a capability of 4-5 tonnes to LEO is my guess just based on rockets in the similar thrust capability range
So, maybe feasible to ferry people to LEO for fun. The likes of what Virgin is doing. Maybe it can just be a scrapped dragon with essential supplies. Would be very much worth it if it could be commercialized.
Miniature rockets are commercial losers. Musk immediately recognized this during Falcon 1 development. Those commercial rocket companies that don’t recognize that don’t last long (eg, Astra, Virgin Orbit, etc.)
Thanks for the great explanation (for those of us non-rocket scientists). Great video. Love the sound ...WOWZA
"Look at those Mach diamonds!"... Here I am gawking at the lack of Mach diamonds. They were running it so hard that the nozzle was not over expanded!
There are shocks but they are so far away from the nozzle.. incredible test outcome. I can't wait to see a picture of what raptor 3 looks like.
I think 'WOW!' is a suitable response..!
Awesome video thanks folks
wow that test looked so clean and stable!
they must have gotten SO much beautiful delicious golden data from the recent orbital test flight.
clearly enough to put together a new generation
I’m excited to see the new Raptor 3 crushing world records and knocking it out of the park
Next test can’t come soon enough :D
That was fun. Nice one Jack!
2 types of chemical reaction, deflagration(slower than sound) and detonation(faster than sound). Same chemical reaction products. Detonation produces more pressure, more efficient, more destructive. Historic benefits, gunpowder to gun-cotton(nitrocellulose), 8" cannonballs 300 yards with gunpowder, 16" shells 20 miles with nitrocellulose.
That echo effect on 'combustion chamberjj' reminded me of @The Science Asylum (Nick Lucid) and his bit for the Law of Conservation of Energy.
can spacex potentially achieve 420.69 bar?
😂
With infinite improbability :)
Gotta harvest some of that unobtainium first.
One can only assume that is the goal
🤣🤣🤣
Oh man. Awesome engine. Awesome vid!
If the chamber pressure is 350 bar just imagine what the indeed pressure for the propellant must be😮
Great news on raptor and great video. Keep em coming!
I find it strange to say that chamber pressure is measured in millipascals. Technically correct, sure, but still; pascals ok, or kilopascals, even megapascals. But millipascals? Sounds weird (to me!)
Imagine strapping that to the back of my Honda Civic? Yeah baby!
Yeah would make a nice ornament. The content of a civic fuel tank wouldn't even be enough to start it up 😂
The power up and power down is truly beautiful. Just need to know the throttle percentage to see the perfect dynamics of the R3. Thanks NSF for all you do.
- NOM
Great video! Thanks
That was a fun explaination!
You guys are just the best! 😎
That was a wonderful explanation of how a rocket engine works and the difference between V1, V2, and V3.
btw….on V3, I never heard the ‘whoop!…..” at the end. Did anyone else?
For anyone wanting a much longer explanation of rocket engines, please see Mr. Tim Dodd, the Everyday Astronaut.
"there's a whole lotta more wiggles on that graph" LOL
That's a highly technical term. 🙄
Beautiful engine fire
I find it interesting - and maybe it's just me - that when the engine reached the plateau on the graph (end of the video), it just sounded "right." When that graph had a couple little wiggles in the plateau, I could hear (or thought I could) that it seemed just a little, wee bit "off," and then it evened out to "right" again. I wonder if that's an actual engineering/physic phenomenon - the "right" sound means it's working well....?
Eh, I'm no rocket scientist, so maybe I'm just being silly... ;-)
you do not need to be one: does your car engine runs smoothly if it coughs? These Raptor engine must be tuned for particular set of parameters (even if you can throttle them).
@@LaF0IRE Ah! Well, cool - it's pretty neat that my "unscientific" thoughts actually have some basis in science ;-) Thanks
Wow Amazing video guys!!
Great video
“The occasional engine-rich combustion…”
Great humor. I love it! Also, WOW was that crackle loud during the peak of the test burn! That rocket wanted to fly something fierce!
2:15 WOW ill have to watch the VOD of that after XD
The comparison to a regular firing was crazy
Awesome video
Hey does “more efficient” Raptor 3 mean more thrust per ton of propellant, more thrust per mass or volume of engine, or just more power? Great video, many tanks.
All of that
Good update
That test Engine seems to smooth out after a little bit of deep static sound in the middle of test.
Truly impressive. But why is the exhaust orange? I thought it had to be blue(ish) because it burns methane.
Rocket engines usually run fuel-rich (rather than stoichiometric) to keep combustion chamber temperatures from being too high (amongst other reasons), and Raptors are no exception. In addition, many (including Raptor) use film-cooling in the main chamber and/or throat where extra fuel is injected as a film to limit the temperature at the wall.
When these engines are run at sea level, the ambient air pressure is dense enough that atmospheric oxygen interacts with the excess (not burnt in the main combustion chamber) methane in the exhaust plume, giving rise to additional combustion products and thus additional colours.
And it still honks!! Love it!!
do you think chamberpressures can be increased further if they sacrifice more propellant for filmcooling?
Ok "engine rich combustion" is gold! Even better than "rapid disassembly"
Curious about versioning on Raptor vs Merlin. The Merlin used the 1D and StarShip will be using Raptor 3. Was Merlin just tweaked and Raptor is getting more of an overhaul between versions?
Man, that channel of fire.
Wonder what engine component typically fails first. Virtually every part working just short of its extreme edge.
Also, 33 R3's are going to need a bigger booter aft, shields, coolant cone, etc. Do you think the WDS is going to be modified for this extreme amount of power?
So much more to ask, but it becomes contradictory when done. Keep pumping he episodes out. It answers allot.
Thanks Jack, and NSF!
- NOM
*booster -,
Just amazing. Now to sort the launch pad.
Not 268 tons, not 270 tons...
"I'm not a rocket scientist...." Proceeds to use the word "Anyways"
We all know that making the shock diamonds more beautiful is by far the most important thing
In the engineering world, beauty often implies function.
Probably is true in most other worlds.
Respect
Given what happened during the first launch, I have to ask: why is the McGregor test stand so tall and the Starship Launch Mount is not?
The bottom of the OLM is as far from the ground as the bottom of the pad at LC-39B is from the bottom of the flame trench. The OLM at Boca Chica IS tall.
I am very worried about the upcoming watercooling/flame trench. I really do not think it will hold up again. Who knows can't wait to see though
Come join us as we listen to the birds and watch awesome engine tests.
And watch cows running in the fields. 🐮
I wonder if there will ever be a Raptor version of the Falcon.
A Falcon with 5 Raptor 3 should be able to outperform a Falcon 9. And that could allow to put flight hours on Raptor independently from Starship.
After all at one time Falcon 5 was a thing... Maybe Falcon 5R.
I personally don't think SpaceX is likely be making a "Raptor version of the Falcon". On the other hand, if they chose to make a direct replacement for the Falcon 9 using Raptor engines it likely would have five of them. The new launch vehicle might receive a different name though...
You would need to redo the thrust plate on which the engines are mounted, along with tanks as they are sized to RP-1 and not LCH4. So pretty much a complete redesign of the whole booster. With 9 Merlin engines, they can lose an engine at liftoff and still get to orbit with the other 8 engines. With 5 larger engines, if you lose one early in the flight, you are not going to space that day. Satellite operators and insurance companies REALLY like the the engine out capability of the 9 Merlin RP-1 engines.
One Merlin engine at minimum thrust already has too much thrust for landing, so they have to time engine start precisely, so that the acceleration is near 0 at touchdown. Going with a much larger engine, would make that more difficult.
Hard to see them doing that. Second stage of Falcon 9 is not reusable so launch cost of Starship is expected to be lower.
"engine rich combustion"
Bruh LMAO
Is the iconic raptor engine stopping sound gone? What was producing this sound in the first place?
thanks
2:55 you would not get far if you measure the pressure in millipascal (mPa), what you mean is megapascal (MPa).
little difference in factor of 1billion (e+9)
I was wondering, if SpaceX succeeds with the full re-usability and rapid turnaround what do other rocket companies have to offer in the form of competition?
Nothing yet. Rocket design cycle may be about 5-10 years so it will take some more time. Due to spacex pressure ULA retiring Delta IV and Atlas V rockets to be replaced with Vulcan rocket that is under development. European space agency has Ariane 6 rocket under development and previously had plans for it to be launched for several decades, but few years ago announced that the rocket that still under development need be replaced in like 10 years with new because current design can't compete with spacex. China announced several new designs that looks like SpaceX's rockets and also methane engines. But there is nothing close to falcon 9 and starship/superheavy yet.
Yup-SpaceX is leaving all honest competitors in the dust. Only government interference can and will slow them down.
350 bars is absolutely insane that it was successful
Whew!! Hope they are rebuilding Stage 0 with Raptor 3 (or 4??) power in mind. If they want to launch Starships daily-or more frequently-the OLM and exhaust suppression are gonna have to be waaaay beyond “robust”…
When Jack says Milli, he really, really meant Mega (like 6 orders of magnitude meant that) . Not sure that needed said but, in case anyone was wondering.
So if they higher in pressure, they need a new tripod test stand or more water?
Nice. Raptor V3 is simply amazing. "Going where no rocket engine has gone before" ...
curious, does the V3 consumes more fuel at full throttle than V2? and if V3 is matched on V2 full thrust, does V3 consumes less fuel than v2?
Unless V3 has a significantly higher efficiency (it probably has a slightly higher efficiency, V2 was already pushing the efficiency limits), it will burn through more fuel compared to V2
@NasaSpaceFlight if the relative increase in each engine can be assumed to have an 18% higher thrust at any given throttle, meaning that the safety margin is also higher, would that mean that starship could make it to orbit using less fuel in its upper stage which in turn would mean that starship would need less in orbit refuel mission AND each fuel tanker could be filled with more fuel? So over all less launches needed to get to the moon and Mars?
Yes, that’s the idea.
Does the recent discovery of the poor performance of the FTS change our theory on what happened to SN11?
I feel like we all thought they activated the FTS, but seeing the way it came down in pieces, I now suspect we may have had a RUD during an engine re-light.
First I ever heard they activated the FTS. I remember Elon commenting that they over pressured the 'Hot Gases' so it possibly split a seam and the rest was history.
V3?? What? Sweet!!!
Anyone know what the increase in efficiency is with the greater chamber pressure?
The next step to reach higher pressures is to continuously detonate fuel at the inner perimeter of the chamber, so the main thrust or fuel can be further compressed like a shape charge
I swear the last few weeks i have been hearing the rocket test all the way in temple which i never did before...I was like what is that no way thats spacex
Wonderful 🎉
Is the now higher max chamber pressure indicative of reliability? As in, now that it's capable of higher chamber preassures, they can now run it at lower chamber pressures whilst maintaining performance with less risk of failure?
That’s basically what he means by safety margins, yes.
@Shaw Fujikawa ah! my bad. Must have missed the part he said that. Was busy burning dinner 🤣
@@williamtsmith9668 Another way of increasing your 'Carbon Footprint'. 😆 Also Bear Grylls says a bit of charcoal helps with digestion.
great again. i love you
Epic...😎