Asymmetrical Atlas V Launches - Kerbal Space Program
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- เผยแพร่เมื่อ 21 ส.ค. 2024
- OSIRIS REX is set to launch from an Atlas V 411 in the next 24 hours, this configuration uses a single Solid rocket booster on the side which is a crazy concept if you're a seasoned KSP player. But there's technical reasons why this works, and design reason for why none of the Atlas V configurations use a symmetrical booster setup.
nasa has great knoledge in unbalanced rockets, considering the shuttle as a mess to balance (huge outside tank, solid booster, wings, off center nozze, off center cargo)
Yep, it's just a thrust vectoring problem that is hard to solve in KSP given the limitations of the build system.
i wish
But it’s built by ula
@@machy8515 so
"[...] you'll see that this rocket is essentially power-sliding like a boss"
That is one of the best quotes I've ever heard!
The septic guy would be proud.
That's basically the same thing i thought of as well :)
Gaalidas Jacksepticeye?
It is
Actually a dual-engined Centaur has flown, just not on an Atlas V. Centaur was originally designed with two RL-10s in the 60's. Performance improvements meant that one could be deleted, though two is still an option.
@Leo Fisher Cassini launched on a Titan IV with Centaur T transfer Stage so yes but not in the Common way you would expect with your comment
Just to put it out there for anyone still watching this :P.. Procedural parts SRBs do now have a setting to adjust the nozzle's tilt. So you can actually build an SRB, and mess with the tilt of the nozzle to counteract it's offset thrust.
I looked to see if there is an Atlas 404. Couldn't find it...
This should have more likes; I think it went over most people's heads lol.
There is a 403, but nobody's allowed to see it.
They tried to build a 500 too, but it kept exploding.
+thomastc i think you didn't understand his joke or i didn't understand yours :D
EDIT: I didn't!
I have a 418 in my house.
The rotational thrust vectoring at 8:50 is so awesome! :D Reminds me of a dance line.
KSP - stock gimballed solids are long overdue....
kw rocketry has some
Mod ≠ stock.
Actually Mod = stock, @Eklykti logic
Isaiah Phillip full stock is boring anyway.
See update 1.8 for details.
Atlas V: Tokyo Drift
Drifting is not power sliding you forza knewb
@@imagineaworld oh yeah, if you know whats drifting is it automaticly makes you a forza player
got it.
and drifting is power sliding
becuase just look at it you literally just slide with power on the wheels and the 'wheel'
3:32 Scott:"...You're gonna see right away, it' starts going sideways - Whole thing is essentially is power-sliding off the launch pad like a boss."
Best quote ever :D
Hi Scott, I've added nozzle deflection on ProceduralSRBs! The plugin should be updated soon.
I was actually adding another feature in the ProceduralPart plugin while listening to your video.
I've added polyhedral (3 to 12 sides), mk2 & mk3 shapes and I've also managed to code an adapter part that support different shapes and sizes (like hexagon to mk2 for example). Theses ares mostly finished and should come soon.
I just watched the ULA launch footage and came here looking for an explaination. Luckily, this was at the top of your channel! This is why the world loves you, Scott.
Lockheed Martin engineers : so after consulting with an expert, it appears that "adding more boosters" would solve all our problems
Scott : Did I tell them about the symmetry button ? Oh well, they'll figure it out
Really funny
Rewatched this in my recommendations, and OSIRIS already picked up its sample. Time flies!
Thank you Scott for taking the time to explain us these things! And the Kerbal examples certainly helped to illustrate. Science rules!
Crazy to live in a time where the mission this video discusses, Osiris REX, had already been completed.
Huh. Well the asymmetry makes sense now. I guess it's easier to just use thrust vectoring than it is to redesign the whole rocket.
Project "Peg Leg". Best name for a rocket EVER.
I just started playing KSP and I absolutely love how you use KSP to show how thing work. we'll done, sub'd for sure
Excellent video Scott! I'm always impressed by your ability to disseminate technical info.
This reminds me of the shuttle engines looking like they're locked offset to the boosters on launch giving a bit of a side ways drag.
at 7:33 there are actually 3 on one side, one is clipping into the other.
Yeah, and there was some clever camera rotation to try and hide that. It failed of course. We're way too quick to be fooled by camera rotations.
I think that was an error when building it
Thank Godfor you posting, I thought I was insane.
Probably forgot symmetry on.
The real one actually has two SRBs clipping into each other. The MAN just doesn't want you to know about it.
Scott, could you please do a video on making probes or satellites in KSP look aesthetically better.
And if you do please include the mods you use to make them look better
Well, I'm not Scott, but I can suggest a couple things.
1) Keep them as small as possible. See how tiny you can make the probe and still be able to cram all the necessary bits on in a plausible manner.
2) Look at real probes for inspiration. A personal favorite of mine is Luna 9. There's something amusing about a weird lumpy probe that shoots a big egg into the sky.
3) Try AIES and DMagic Orbital science; they both add nice probe bits and science experiments respectively.
dude... you have half a million subscribers. Half a million people worldwide are paying attention to you. that's the size of a small city! congrats!
I was at the ULA Ground Station in Denver for a launch viewing of OSIRIS-rEX. I asked them this very same question about the 441 configuration! It was very interesting to get to talk to the engineers about this.
That feel when you've been expecting a brain-damaging flow of math as an explanation and instead...
feeling*
Feel, singular (feels, plural) is internet new-english for regular english: feeling/feelings, emotions
That entire "like-a-boss" launch bit...
Just... wow. 🤔 You, sir MUST be a king amongst nerds. And ladies.
Oppa Kerbal Styyyyyle >mewp > mewp > mewp > mewp > moop moop 😎
Use the SSTU mod, it has what you are looking for in it's SRBs.
I guess now we know why ULA launches are so expensive.
Your voice is so soothing to listen to, couple that with the technical amazingness of KSP and its probably my favourite thing ever.
Atlas is an OCD's nightmare
Would you believe 7 years later, the samples have returned but they're stuck in the sample return canister?? What a time to be alive
the 421 is a person with OCD's nightmare
not really
Yes. I was about to ask What's the point of inducing torque if you only have to compensate. And you answered. Keep these coming.
Thank you for the explanation Scott! I'm not a total rocket noob, but have been wondering about the strange Atlas V SRB configurations for some time and seeing OSIRIS-REX being launched on a 411 just brought the question up again. :)
And now, the Osiris-Rex is safely on its way to Bennu after a flawless launch.
Love these Real situations in KSP videos! Great work Scott, keep it up! :)
I always contemplated the "why" of the Atlas V's booster symmetry problem. had no idea the answer was so simple!
So, NASA rocket engineers finally went kerbal.
... yeah.
Atlas V is not NASA's rocket. It was made by Untited Launch Alliance (ULA). Just saying.
5:45 That truck flattened that poor little dude!
xD
I have been looking for an answer to this question forever - thank you!
Scott Manley: powersliding off the launch pad like a boss.
Thanks Scott, Nasa TV mentioned 411 configuration twice already since I started watching the launch coverage - kinda nice to know what they mean. Now if only they would put up altitude in meters and not feet - fingers crossed :)
as long as the taxpayers are funding it in dollars, you will see feet and miles on NASA.
5:44 oh no oh no it's gonna crash oh my GOD
“Power-sliding off the launch pad” shall be my phrase of the week. ;)
This gave me inspiration to make an Osiris Rex replica in KSP.
Excellent and informative video. I love when you make videos like this.
Great video! I would lead off why the SRB's are offset at the beginning of the video instead of the end. Pose the challenge at the beginning so we can all be stupified until we get shown this awesome workaround and how it works. Love these explanation vids. Short and sweet.
Please Scot keep up the good work of explaining rocket sience to the world by playoing that awsome game, you do great.
It's cool watching this 3 years later when they are currently mapping out where OSIRIS-REx will be making its touchdown on Bennu. Turns out Bennu is basically a giant pile of rubble so it's gonna be tricky
0:30 I like the subtle SpaceX burn
There are two mods that will get you something much closer to what the Atlas 411 really looks like. KW Rocketry has an SRB that looks just like the ones used on the Atlas. Its nozzle is angled outward but I'm not sure if it's enough. Ven's Stock Revamp adds an engine that looks a lot like the RD-180. It has two nozzles and a 4 degree vector range.
"Power sliding off the launch pad like a boss" lmao. nice one Scott. Great video otherwise too!
The way I tried this before watching your video was just to reduce the SRB throttle to 50% & the regular engines do just fine too - the SRB almost lasted as long as the 1st stage too :)
The one tilted SRB is already found on the KSP stock "Orbiter One".
thank you for posting this video I was thinking about that all during the launch
The back and forth movement is called porpoising. The up and down thrust of the mammals tail cause it’s nose to go up and down in the water.
I think it would also have been useful to mention that the X2X and X4X versions are asymmetrical because they use positions from the X5X setup, as all setups do.
This means they don't need different mounting points depending on the version, it just means they need some and don't need others.
It also makes more sence from a manufacturing perspective all these configurations can be mounted to the same 5 mounting points. If you would try to space them out evenly only the 2 and 4 config could use more than one common mounting point.
sure enough, procedural SRBs now have nozzle deflection.
Wait, we are getting asteroid samples?!?! Nice!
"And besides, it works in Kerbal space program"
I saw the Atlas V 551 in person. My oh my. Space X is really cool, but ULA is also pretty neat.
That moment when you watched all Scotts videos so you just watch them all over again .
I was wondering about it for a long time, thank you. BTW, Atlas just looks funny with just one SRB :)
TH-cam recomendations:
2016: no
2017: no
2018: no
2019: no
2020: why not?
Scott, what computer system do you use? Specs, please... Thanks!
Your 541 was actually a 551... You can't fool us Mr. Manley!
I"m thinking N Korea should consider allowing youtube access to their country.
Commence operation pegleg! I lol'd.
another thing you could do is turn down the thrust limiter on the solid rocket so it pushes less and the engine can compensate and it burns longer like you said
Thanks as always for the video Scott. Sorry if it's off topic for the video, but in one of your live streams you mentioned you learned a lot of what you talk about from reading on your own and watching documentaries. Do you have a list of some of your favorite reads somewhere? I'm always looking for great space/physics/astronomy books and shows, and if you have some suggestions I'd love to see. Thanks!
In real life the variants of the atlas V has it's boosters offset because the weight on the inside of the main section is not centered as well as the external engineering. Those fuel tanks aren't just neutrally weighted cans of fuel, they have a lot of internal works as well to handle that fuel and keep it safe when it's flowing.
Hi Scott! I think that you should have rotated the two vector engines and not the solid booster to compensate the slide . The problem is that the vector engines ignite at 0 vectoring and that gives a little side push from the solid booster. If you rotate the vector engines that would compensate the side push from the booster right at the ignition. Regards!
Thanks Scott, that was very interesting. I would like to know more about the Atlas and plumbing on the booster-stage.
Scott you should come visit the Cape sometime, I got the watch the launch from the turn basin I front of THE VAB with my telescope, and it was great.
Needs Eurobeat Music! awesome as always
The SRBs in reality also have an inward thrust vector built into them, so that helps as well.
It was weird looking to watch! But of course the space shuttle was asymmetrical too.
Oh, sorry, you get to that at 3:50.
GO ATLAS,GO CENTAUR , GO OSIRIS REx
Weird seeing this now that OSIRIS REX has booped its asteroid.
Who's here after Astra launch?
Scott is genius
Late to the launch. Ended up pulling off the highway onto the grass ten miles away to watch osiris rex.
The drag would be crazy going sideways like that
Soo much knowledge. Thanks for sharing!
They’re intentionally attached all weird to show off how good their gimballing is
Interesting, I might look into this for my career mode saves.
Scott, will you talk about closed cycle engines? I want to know why it's such a risky design and why it delivers so much more performance.
The other reason for the booster configuration is it allows any number of boosters on the same core, with no specific preparation
That last rocket looks like Zephram Cochrane's Phoenix warp test ship.
Single SRB in KSP: Cool! 🤘
Single SRB in reality: Whyyy?! 😫
I actually got to see Osirus Rex while it was being built at Lockheed Martin.. Got to wear the fancy white suit and everything.
we are in orbit
The Boeing "Starliner" is set to use the Atlas-V 442, First ever use of the 2-engine centaur.
That's necessary to avoid turning the astronauts into strawberry jam, or at least making them very uncomfortable. Satellites on the other hand don't care so much. The RL-10 upper stage engines are old tech and ludicrously expensive to make, so you want to use as few as possible. So normally you fly mostly straight up and then do a big dogleg into orbit for satellites. Humans are a bit too squishy for that, so you have to go sideways earlier on the core stage but that means you need more upper stage performance.
Scott! love your videos!! I wondered if you offered an introduction to making space stations, I use the console version
Hunting worse than the LEM ascent stage. Gotta love it!
Now, I wonder if there's a mod for offset SRB nozzles?
Bunch of drunk Lockheed engineers going "hey hey, let's put the boosters all asymmetrical-like, see what happens!"
I can't make orbit with a regular rocket.
CigarBox Guitar congratulations
just keep practicing and learn how to create maneuver nodes
Can't wait till they test Falcon Heavy, that should be some good fireworks during fueling.
Really interesting video. Cheers :D.
In the 5 meter version, the centaur upper stage is inside the fairing of the rocket,not exposed.
Nice explanation! Would love if you could do a Soyuz and simulate the Korolev Cross
th-cam.com/video/yQiS1PIpvYg/w-d-xo.html
That's actually quite easy
Actually... I would think there really is no advantage to having an asymmetrical rocket except when you are dealing with a main hull that already has asymmetrical bits on the outside of it. Of course there's the monetary advantage if you can pull off the adjustments needed and don't need to get the payload into a really high orbit. If all you need is a little boost at the initial launch stage, then a single booster would offer you exactly what you need without requiring a lot of calculations regarding length of burn and whatnot. You'd waste less resources on the other SRB carrying less than it's optimal fuel source.
"Why do they do this?" Obviously, because of budget cuts.