Astra Rocket 3.1 Destroyed After Losing Control
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- Опубліковано 11 вер 2020
- After their near brush with livestreaming a rocket launch Astra have returned to stealth mode while continuing to develop their launch vehicle. Their 4th attempt to launch ended in failure after 25 seconds when the guidance system was unable to keep the rocket on course resulting in the flight termination system ending the flight.
The booster and second stage fell back to earth with a fiery explosion.
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And of course, straight after I posted this Astra posted their own video (up to engine shutdown).
twitter.com/Astra/status/1304884123882807296?s=20
You can't just rip off someone's ip
Impressive sound! Space X take note - we want NOISE when the next Falcon goes up!
@@paulhaynes8045 The unfiltered noise of a Falcon 9 launch up-close would probably destroy some speakers.
@@Chris-rg6nm Really? It's the epitome of all economies; companies competing with the same concepts to make money. Cars, phones, everything.
Anyway, the US smallsat business is booming rn. Rocket Lab is a huge success.
They just dropped a video with sound of a f9 lanch and landing with the cam mounted to the booster. The sounds in space are incredible.
"More sub-orbital than people would have liked" sounds like a line from 'Yes, Minister'.
Dave Lewthwaite the front fell off
Yes Manley
A smirking Wallace (Cleggy from Last of the Summer Wine), "A bit more 'sub-' than 'orbital,' eh, Grommit? (Wesley?)"
Aggreed. Positive spin is the only friend of Dunning/Kruger effect.
LMAO!!!!
Well, SpaceX was running out of money after the 3rd failure, but managed to eke out a 4th launch - the successful one. Astra must be hoping history repeats itself.
Falcon 1 launch attempt 3 failed thanks to staging too hot. Not ksp fully hot staging, but not enough delay between staging and stage 2 ignition. This looks harder to fix ( and almost as hard to test on the ground).
@@wumpusthehunted2628 Still I hope they succeed because the more competition here the better
@@wumpusthehunted2628 Maybe more simulations or even testing flight hardware with hobby rockets can help solve their problem.
@@starmanssciencechannel1834 and more cheaper seats for civilians
Why? We already have space X, why do we need more?
"Rocket 3.11 - For Workgroups. They missed the Windows of opportunity on this one!"
This line alone was reason enough to smash that like button! :D
NEERRRRRD!!! XD
That’s the next version....
I literally laughed out loud at that line. Good one, Scott.
They probably realised that the launch pad was not on version 6.22.
But then they'd have to wait for Rocket 95 for a major improvement, and Rocket 98se for real market uptake.
I noticed a few things about the Astra rocket.
1. The exhaust plume appears to be excessively fuel rich.
2. The oscillation appears to begin shortly after liftoff and it becomes exponential then appears to come under control then go out of control again. I've seen (and experienced) this when you do not have adequate (or none at all) propellant tank slosh baffling. The propellants begin to slosh, the TVC kicks in and begins applying countering forces within its dampening algorithm. What it doesn't take into account is the periodicity of the slosh vs the periodicity of the TVC dampening. What you get is deconstructive interference (sudden stability via periodic cancellation) and then all of a sudden you get constructive interference which is when the slosh combines with the assumed TVC action commanded by the guidance algorithm becoming additive and this throws the rocket suddenly into a hard yaw. The gyros get confused as they are not expecting an additive force, the yaw is beyond their corrective margin and trips the EOF system. Could be wrong but you can see the vehicle wagging the dog right after liftoff.
Its very similar to when a trailer being pulled down the road where the load is far forward of the trailers axle and the excessive tongue weight causes the trailer to control the vehicle.....also called "wagging the dog" at times.
Deadbeat control getting out of phase.
@@EnginAtik Essentially. What I believe also does not help is the L/D ratio of the vehicle itself. You want as long of a rocket as possible as the longer the rocket is, the less an effect sudden deviations in CG have on static stability (CG/CP relationship). So if you have a short stubby rocket that is large in diameter relative to its length. The propellant tanks look like a bathtub of water from a systems point of view. When that bathtub has a lot of mass in it, that mass has a lot of effect on the shifting CG. The shorter the rocket is, the closer the CG is to the CP and that means that the dynamic stability is far more "twitchy" [sensitive] to sudden deviations in the CG location. Its like taking higher orders of derivatives....the higher up you go, the more sensitive to fluctuations the system becomes. A lower L/D ratio coupled with a CG/CP relationship that is also close means that the chance of constructive interference due to slosh is far greater.
Not saying thats what happened.....just what my first intuition was based on the limited visual data available.
Are you working on rockets for a living? You seem to have a pretty good understanding of this stuff
reading this made me realize how dumb i am.. and also im starting to getinto a rabbit hole of rocket launch videos. :P
@Brian Streufert Very eloquently explained.
If that's the only cause of the failure, then Astra are very close to success.
You know something's wrong when the dressing gown is on.
Should the seriousness of the situation require it he would also brush the sleeping cat off his monogrammed slippers and don them, for he is British and such is our wont.
I think that's a new dressing gown of doom.
@@SofaKingShit ...I think you just set every True Scotsman's face On Fire. Bravo, Sir. Bravo.
@Michael Hipperson A fire alarm
4:58 "Then it breaks into two parts." Manley says pessimistically.
Operator: "The second stage separated successfully."
Mostly to me the weird thing is their launch abort didn't involve self destruct detonation. Instead they just shut the engines down and let it explode on the ground? That is little loose goosy going there.
Usually the more traditional (atleast western, Soviet are their own crazy realm) safety solution is to have launch abort explosives, that will explode the fuel and oxidizer tanks to have it go boom high in the air to avoid ground damage. Shut off engines and then explode the rocket to pieces as high in the air as possible to prevent fuel landing back on earth causing contamination and preventing large explosion and singular collision of the whole rocket body on the ground.
@@aritakalo8011 Maybe they ran out of fuel
@@yun-z Obviously not, given that the thing exploded when it hit the ground.
@@aritakalo8011 More concentrated clean up area when it explodes on the ground maybe? Instead of small pieces scattered across a large area.
On the video I can see three parts actually, one big (the main body) and two very small (fairing halves?).
"More suborbital than I would've liked." That's what I'll call it next time one of my rockets blows up on the pad in Kerbal 😄
excessively suborbital. nice, science-y way of saying it blew up on the pad XD
"Fly safe" is what Astra needs. Cheering for you all the way from sunny South Africa.
Also cheering from ZA
Here's hoping for another SpaceX style success story
bankrupt and defunct within a year.
Heck, the more competition we have in this field, the better it will be for humanity at large.
@@Chris-rg6nm Freedom
@@Chris-rg6nm free market capitalism. If only it was implemented fully...
@@rockspoon6528 Not happening.
"It does look like we got a good amount of nominal flight time."
That's the agile spirit, Astra! Keep up the good work. :-)
It was working great! Until it didn't.
This is just the nature of these kinds of ventures. You can gather a lot more valuable information from failures than successes most of the time.
A "mostly successful " launch.
@@party4lifedude Pretty much always applies! You learn more from a defeat than a victory. You might win because your opponent is bad (rather than you being good) ; but if you lose, it always means you're not good enough :-)
@@party4lifedude Absolutely. Somewhere along the line we as a society adopted the "failure is not an option" and "second place is first loser" attitudes, and that's devastated technological innovation. Imagine how far we'd be if we took an agile approach to life in general.
5:11
IT'S A BOY!
lolsnort
Too soon.....
I like it!
I can totally see Elon doing that for his next alien child.
They are a young yet very ambitious company we need to give them more time
I think they mostly need more money. Hopefully they make it!
🥰
The technology they use is obsolete and basically useless for meaningful space travel.
Vertical mode is good OCCASIONALLY.
This is a one in a hundred.
Thanks for your work Scott.
That looks like my failed KSP launches so much. Burn engines for less than a minute, rocket flips, I stage it, and it blows up on the KSC.
Well, quit blowin' up KSC; we need that!
Alameda is the place where they keep the "nuclear wessels". Source: Chekov.
and the Monterey Bay aquarium is in Marin, near Sausalito.
_"Well,.......DOUBLE DUMBASS ON YOU!!" xD_
_"I think he did a lil too much LDS"_
Doctor gave me a pill and I got a new kidney!
Sic comment!
When Scott Manley posts about exploding stuff I can't click quick enough to see what happened.
IKR? His determination and passion is what keeps me coming back =) Thanks for this Scott, we should have this globally on virtually any topic ^^ // Rocket 3.1.1 for work groups is hilarious btw =)
When it comes to rocket failure, who you gonna call?
Lol
Rockets are full of explodey stuff.
Astra: We don't like to call attention to our failures.
SpaceX: You can't call yourselves successful until you have published a video of all your failures, synchronized to music with cheeky subtitles.
What about their first 3 failures
@@sidharthcs2110 You stopped reading too soon
No failures just trying what does not work first.
To be fair, SpaceX made that video AFTER things had finally started to work as intended.
@@yastreb. Exactly. At that point they will be successful, and they can make a montage of unplanned rocket kablooey.
That gown makes it harder Scott!
@Mark Steven what happens when an unstoppable force meets an immovable object?
My money is on Droid, he looks tough
Jason Heckenlively droid would blind Scott with his wardrobe
@@WilliamSteppan LOL
Scott would manhandle the goblin
That photograph at 3:44 is possibly my favourite launch photo ever.
Does anyone know where to get a high resolution version of this photo? I really need a new desktop background :D
"X-Space" sounds like a knockoff Chinese company. It'll look very similar on the outside, but suspiciously weigh a lot less.
I was going to comment on this, but the better side of me said not to. Anyone that tries to go to space as long as they are not killing or hurting people should be congratulated.
it's X-Pace. He said.
@@override7486 ExPace
@@toolkit71 looks like you still commented
@@toolkit71 that's why I never congratulate the chinese.
"Which is in the *sunny side* of the bay" Scott Punley
Sly safe
I, uh, didn't get that one. Please explain :o
Wouldn't a flight termination system normally make sure that the rocket goes boom in the air, to protect the ground systems?
You should have explosives onboard for that. This rocket is too small for it probably.
Only if you deal with hypergolic fuels, where shutdown is harder to achieve otherwise, and the ground boom would be larger and more toxic. Thrust termination assures it doesn't go out of the designated zones, which is the main aim of flight termination.
@@protheu5 Well, there are plenty of explosives already 🙂 AFAIK, some (most?) flight termination systems simply makes the tanks rupture with a small charge, then the rocket itself takes care of the rest.
@@martinlebl631 Ah, that makes sense.
I would assume the possible places where it could land were all in the safety zone (the whole state of Alaska?). But, yeah, it looks a little "Russian"/"Chinese" to use the ground as the destruct mechanism. I guess, if it had veered horizontal and then stabilized, so as to exit the range safety area, shutting down the engines would have kept it in the safety range?
Thank you Mr. Manley for your time and insights.
So great to hear from someone as knowledgeable as you. Thanks.
Even the first 3 SpaceX rockets failed. Hopefully they try again
@Rob C bye troll
@Rob C you need to work on your trolling. its not offensive or funny at all. more sad than anything
Yeah, but the second F1 launch nearly made it to orbit, and the third failed at stage separation. These guys are nowhere close to that stage in the flight. There's so much more that can go wrong between how far they made it and orbit.
@@sciencecompliance235 true, but I still hope they can somehow pull through. The more people successful at this the better off the future will be for humanity
@@nczioox1116 Me too; I just won't be holding my breath.
I can't think of an industry with a steeper more expensive learning curve than this.
We can tell you really love this sphere of technology , you’re so enthusiastic. It’s great to have something to love learning about.
I just love how I always learn something new from watching your videos. And I love reading the comment sections, where knowledgeable people debate complex problems in a respectful and friendly manner. Kudos goes out to all of you guys out there. #teamspace for life, and fly safe.
Rocket 3.11 for Workgroups! :D
He’s showing his age their (and so am I )
The 3.11 reference really made me laugh and then I realize most people probably don’t get it because they’re too young
do you mean I AM OLD?!
I'm 35 and that's probably the minimum age someone could be to get it
I am ever so slightly younger than 35. Anyone to enlighten me?
Windows for Workgroups 3.11. Yes, I’m that old and I was in the computing industry just prior to its roll-out.
If you didn't get it, count yourself lucky. That was a bit painful! I must have ruptured a gasket somewhere because I went "Pfffft".
Scott, I am glad that you watch for the things that we (public), would never otherwise know about.
I wasnt first I wasn't last but when it's Scott manley I click fast
English teachers: * Insert man digging in sand photo *
Perseverance Inginuity yesh
@@zombieaerospace5005 looking at the sand in his hand its its dissapering?
BUT WHY?
Finally someone honest
This is even more геt@rded than yo mama
During my 4 decades of aerospace engineering, I frequently seen very smart engineers focus on performance and structural capability while ignoring the controls problem.
Awesome videography by Eric! Well done...! Thanks Scott... 🙏
I really admire you Scott.
You seem so candid on camera that at 9:21 , I thought that was your foot.
You are a charming person and I love all your wonderful videos
Yessss. Was hoping you'd do a video on this.
7:36 That frame is meme material.
"When your rocket causes to SM to appear in his bath robe."
Already saw one on Twitter. I’ll crank one out for the 20km Starship. «DoN’t mAkE ScOtT sHoOt iN hIs rObE - FLY SAFE!»
I love when you show pictures of the bay area! I haven't been there in so long!
Thanks for covering an Alaska rocket launch. We are usually left out of the news.
Cheers from Juneau Alaska,
Greg Chaney
I'm just gonna wait for Rocket 95.
This is Kodiak island right? As an Alaska guy near there I definatly was excited for this.
Some fine Kodiak moments
For real, hello from kachemak Bay @markiangooley
Bruh, I live in fairbanks, and this is how I found out. Rip
@@BritishGun another person from the big wild north eh? Well met comrade.
Who needs an equatorial launch when you're only going a few kilometers up just to pollute a nature reserve a few times? Hint, starts with an A.
The Saturn V and launch tower models look absolutely stunning.. can't take my eyes off them!
@Scott Manley Love the jacket you are rocking in this video. Being an East Coaster but have friends in the Bay area, I'm rooting for Astra as well. Keep up the great work sir, Live Long and Prosper from a fellow Trek fan.
That Windows joke was brilliant. I like that sort of humour.
"more suborbital than people would have liked" - understatement...
Yes, rocket 3.11 for workgroups was a definite missed opportunity.
Astra first attracted my attention about 1.5 years ago when, to my utter amazement, I spotted a rocket standing upright at their facility while bicycling around the old Alameda Naval Airstation. Having nothing to lose, I entered the lobby and introduced myself to the very nice receptionist. But she wouldn't give up anything! After 15 or 20 minutes of brazen grilling, I had learned only that they were a 'spaced-based company'. She didn't even reveal their name! But a permit search on the City of Alameda website showed that a company named 'Astra' had filed for permits to modify the old engine test cell. I hope they can reach their goals, they seem like nice folks!
I've been to this launch pad, it's quite a drive out from town, with a party beach nearby, where the locals like to frequent. Very remote and beautiful.
Vertical videos are allowed for: rocket launches and pinball machines.
Thanks for the update Scott!
Where did you get the launch tower for your Lego Saturn V?
Damn! That was looking great from the camera phone footage, then suddenly nothing, followed by falling then boom. That was a real shame. And yes, that still photo with the massive heat waves really helps highlight how much energy is actually pouring out the bottom of that thing, FAR beyond the actual burning rocket flame and it looks fantastic.
Dammit, Scott, _I_ wanted to make the Rocket 3.11 for Workgroups joke. I had it all cued up ready to go, but luckily decided that I should watch the rest of the video first...
4:09 We can clearly see that the rocket crashed into the clouds!
Looks to me like the front fell off.
Don't worry. It fell down outside the environment. ;)
Paper products...
@@mikecimerian6913 So, cardboard's out?
@@antisoda Rubber too.
@@SimonWoodburyForget In the sky? Chance in a million
Thanks for the timely report!
5:00 Just the fact you follow Thedodo and 1320 video says all I need to know about you Scott. Another great vid, thanks man.
“The should’ve called it 3.11...”. Very funny MS Windows 3.1 reference Scott, you super-nerd. 🤣🤣🤣
How many viewers are to young to get that reference?
@@jur4x at least a couple so far...
@@jur4x well i lived during WinXp days so ..... yeah i didn't get it
This old gal got it, good one Scott!
@@YassinElMohtadi My first computer at home had 95 on it. But I've seen 3.11 somewhere else. But MY first computer had Xp on it.
Looks like their self destruct is "on point" as well... 😜
The photo that John taken of the rocket rising is food for thought for the true rocket man in that a Rocket Man sees major errors. Good photo John, my eye viewed and analyzed very much. It's TRUE, a picture can be worth a thousand words a d many more. I have not typed a thousand words or more. Good luck Astra, perhaps your efforts may yield rather than do other things !!!!
@7:30 naming it rocket 3.11 for work groups. I spit my coffee all over my laptop! Thank you for that. I was using 3.11 for a long time back in the day.
I am still using Windows 3.11. In a dosbox. In Chrome. To play Solitaire.
Didn't even need to read the title as soon as I saw that red gown
They cursed themselves with the Launch Rig.
real news brought to us by a man a real man great video mr manley
I like your LUT set. I have one in my office as well!
Love the jacket! All you need now is a tobacco pipe and the ensemble will be complete.
That's his dressing gown, as folks from across the pond call it. Does definitely go with a pipe - and a glass of Scotch at his elbow.
bubble pipe and a fez
Ah good ol' Win 3.1.1
Back when microsoft could still count...
Yeah, forgetting numbers, can't even count past 10. No wonder they buy everything they sell.
Dudeee I was expecting this video SO MUCH
I was just thinking: "I bet Scott Manley is gonna have a video out about that really soon." And here you are!
4:50 when you turn too sharpy in ksp and bodylift does its thing
Apparently, the kids like vertical mode. I weep for the future of our species! ;-)
You get twice as much space to fit the rocket during launch. As Scott says, it works for rocket launches.
Right when I heard it failed, I started looking forward to this video
wow! i live in Alaska, i didn’t know there were rocket launches publicly available to watch! definitely gonna check it out
Hey you should make a video about weather it’s possible for rocket engines to have multiple combustion chambers
Edit: I mean with multiple combustion chambers and one engine bell
I guess everything is (figuratively) if you're smart enough.
It is, for example the RD-180 and RD-170
Sorry if I didn’t specify, I meant for rocket engines with one engine bell is it possible to have multiple combustion chambers
@@kingsleyrocketry I don't see why it would not be possible: as long as the combusted flow is subsonic, before the diverging part of the nozzle, you can duct it almost as you like, making it turn or even merge as long as there is enough space to not choke it. Maybe the biggest problem would be the cooling of the walls but with ablative cooling I think it would be doable.
Theophrastus Bombastus maybe it could be a good expander design, having a much larger combustion chamber area. The dry mass would probably be really bad though
Haha are you wearing a smoking jacket? Awesome!
I thought it was the Astra team that wore the smoking jackets.
Great info Scott
Astra seems to be the Ford Pinto of the Space Program.
the dressing gown of doom!
Slick marketing for a failed launch?
Sounds like a Silicon Valley project, amirite???
"If in America, rocket goes wrong, they have a button: they press and bang goes rocket.
In Russia, we have *two* buttons: First button you press: *Bang* goes rocket. Second button: *Bang* goes rocket engineer."
(My favourite line from Billy Wilder's 'One Two Three')
not many people know this , but there was a crew on board that rocket, a Chinese crew, their names were Sum Ting Wong, Ho Lee Fuk, Wi Tu Lo, and Bang Ding Ow....all four are said to be recovering nicely.
You should definitely name spacecrafts after windows versions if your goal is to crash.
Hey
Ur first
SFS Atlas i guess
Yo
Scott, excellent video. This nerd appreciated the Windows 3.11 reference!
Love these vids
Roses are red,
Violets are blue
Premature explosion
Of my homemade V2.
Lol darpa did self driving cars in the early 2000’s now you can buy a car that drives it self......so now what in the next 20 years ill have a rocket trip to japan?
Cars drive themselves into cones? Cop cars? People? Semis?
@@JAMESWUERTELE Selection bias much? Tesla's own numbers show 1 autopilot accident per 4.5 million miles. Without autopilot, the average for Tesla is 1 accident per 1.5 million miles. So a Tesla on autopilot is 3x less likely to do any of the things you listed compared to a human driving a Tesla.
@@revengefrommars sadly most people dont understand/ care about stats and probability. Self driving cars would be the shit for big cities with a lot of traffic. Machine learning could optimize trafic flow it would be almost a miracle.
I hope Astra makes it too. Unlike many of other space companies (some much bigger with a lot more money!) these guys are a real company building real rockets.
Your pun game is as strong as I could have hoped. Keep it up, Scott :)
Ah yes no views 19 likes perfectly normal
They were a little too busy virtue signaling rather than quality control. =D
Cue the "Dressing Gown of Doom"! 🤣
Scott going with the Hugh Hefner look.
I'm probably not first
SFS Atlas that’s me 😬
Christoph Fenske no thats me g
After printing Black Lives Matter on the side of it, the rocket went the same way as the movement lol
Get Woke, Don't go to space today.
it was on the strongback I think, but yeah that was a bit bizarre tbh
@@ivan8960 Ah, I thought they put it on the rocket as well.. Still, it made me chuckle! lol
Everybody gansta until Scott shows up with the dressing gown of doom
You have no idea how jealous I am of your Saturn V LUT. I've been wanting to buy the parts and plans for one.
Big
Launch
Malfunctions
Keep the politics out of space.
...out of my personal space, for sure.
Should have focused more on launching the rocket, and less on virtue signalling to a terrorist organization.
Man I just get recommended this after the recent Astra launch failure. This is unfortunate.
Like your videos. Where did you get your rocket models at, especially the Saturn 5 with the launch gantry?