Decouplers to Orbit - KSP 1.10.1
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- Опубліковано 30 вер 2024
- Video Sponsored by Ridge Wallet:
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SWDennis decouplers to orbit: • Decouplers only to Orb...
-- TIMESTAMPS --
0:05 Introduction
0:42 Decoupler Rocket Background
7:48 Decoupler Rocket Launch
-- MUSIC CREDITS --
EVA - 失望した: • EVA - 失望した [Synthwave]...
Skylight - Kaboom!
/ kaboomsynthmusic
kaboommusic.ba...
Big thanks to Ridge for sending me this wallet and supporting the channel! Here’s the site if you want to check them out! > ridge.com/S75
Also, please let me know what you think about this more "behind the scenes" style of video! I've been trying this more and more lately and I've been enjoying making this style of content. There is a lot that goes into these videos and I think its interesting to share the story behind how it all came together.
i do miss the eye-candy cinematics, maybe have every video alternate between commentary and cinematics? just an idea
@@cloverdove Thats kinda what I'm doing right now. I'm mixing in stuff like this between classic cinematics like the Arrakeen city one.
That said, I think I could have more cinematic shots for these videos too. I'm still trying things.
@@Stratzenblitz75 ah, that's good to hear! i think the jool ssto did that well, the combination of cinematics and commentary
Why was your arm shaking so much showing off the wallets?
@@mogol109 My hands are just shaky. If I hold them in front of me and try to hold them still, they shake a bit. Its worse when I pick things up.
7:40 Yes, 764 Gs is "slightly higher" than 1
Only slightly...
I mean, on the universal scale of things...
It's far less than from 0 to infinity!
How can you actually see the amount of Gs higher than the number on the gauge.
I mean I could survive that easily
Yes, 764x more is slightly...
you forgot to add stripes, they make rockets go faster
What!
and red
@@liquidmech1727 Warhammer reference
I Hope this Is a joke , it’s a joke right?
@@merf5549 bruh no it's facts stripes and flames make things go faster
Actual Title: Animating Text in KSP
I had too much fun with the b roll, I'll admit :P
Whenever you do a crazy video like this, I feel bad for your PC XD
When my laptop even cant candle roblox
@@thedepression950 I Can Handle Legends Of Speed In My Phone
@@alexanderpadeyev5846 Wow
Also 3008 But A Little Bit Slowly
@@alexanderpadeyev5846 you must be rich or something
Two things I really enjoyed about this video:
1) The satisfaction of someone having done some math in regards to engineering, and having it work out perfectly. This stage should have a DV of 3000 m/s, and what do ya know? 3000 m/s on the dot.
2) With just about every insane mission profile in KSP involving many hundreds of parts, I quite enjoy when the first stage(s) detach and you can feel the performance of the game get better. :P
@N. Warner Never too late to learn! There are loads of great resources online. One of the best for maths is Khan Academy, their videos are incredible.
@N. Warner Did you ever go on to learn trig for KSP?
I have questions...
at first: ..... WHY?!
Why not?
@@siriusk1453 Exactly
Its not about why, its about why not!
Engines are too unreliable
@@Stratzenblitz75 The Kerbal Space Program is not about why, it's about why not! Why is so much of our spaceflight dangerous? Why not marry safe spaceflight if you love it so much?! In fact, why not invent a special safety high-impulse decoupler that won't cause you to be flattened to a dime's thickness on the way out, because you are fired! - Not you, Bill, you're doing fine. - Yes, you! Cargo bay! Your stuff! Down the crawlerway! Launch pad! Rocket! Goodbye!
Stratzenblitz and Bradley uploading at the same day
i'm gonna scream
same
I swear its a conspiracy. I don't know why our upload schedules have synchronized for this.
@@Stratzenblitz75 _Ask Bradley, if he's also on his period. That would be the mother-load._
Ew.....
@@RpattoYT I don't know how to feel about this.
@@Avetho Hey maybe you're in sync too or maybe it's just us girls...
The absolute lunatics at Ridge actually sponsored this madman.
Not the weirdest ridge sponsor i've seen. That award goes to tomatoanus with code ANUS. Apparently the staff at ridge found it hilarious and ok'd the code.
@@ovrsurge4689 I respect every business that supports a guy named tomatoanus, especially with videos that have titles like "speedrun to overdose Mama Murphy in Fallout 4"
I'm kinda surprised that craft didn't burn up immediately with such high speeds at such a low altitude. Impressive as always!
Its only ~1000 m/s, which is much lower than what would cause heating damage.
I also found it interesting that this didn't cause any heating damage. I was expecting to have more issues with this part of the mission so I'm glad it went relatively painlessly!
@@Stratzenblitz75 ah yes
*Painlessly*
I wonder what those kerbal felt going from 0-100 in an instant
@@Stratzenblitz75 I imagine it is because the craft moved so quickly that by the time 1 physics frame had passed, the payload had already left the denser part of the atmosphere that *would* have caused heating damage if the game ran faster
Stratz and Bradley upload in the same day
.
Is this Staged?
maybe, but the decouplers sure were
check yo stagin
Strat: shows the equation
Me: Fat (Fdt)
Integration of force can indeed be very fat.
Why is Stratzenblitz's reply supposedly 5 minutes before the comment itself? Is youtube being drunk OR IS HE A TIME TRAVELLER
@@wyldcat9396 Because the timestamps of replies load in when you view them, whereas the timestamp for the comment loads when the comment section loads. The 5 minute difference you saw is the time between the comments loading and viewing the replies to it.
@@JetfireBlak ah
Next: reaction wheels to orbit
he could use the same catapult trick as in the jet engines to orbit
@@realtired3670 trebuchets gone too far
I think I could do that. I want to give it a try at some point.
@@realtired3670 thats what i was thinking
@@Stratzenblitz75 certainly possible
6:07 Stratzenblitz, the only guy who can turn an angry bush into a frag grenade.
I love that TIMED decoupler scene. Genuinely awesome.
also, man's just flexing his threadripper right now.
Thanks! Ioved making the B roll for this video, it was great.
Also, I don't have a thread-ripper (sadly), but I am running a Ryzen 3900x which is still pretty good. Its alright at KSP and really fast at video rendering which I love.
Stratzenblitz: proceeds to make a rocket of decouplers*
Me: ....
My computer: -_-
Me: good. considering that my computer can't even handle dropping an uncoupler in the game but ...
Lets try :)
Ps: true story
*mentions SWdennis*
me: oh no
At least it isn't Danny 2462- oh wait he actually mentioned that in his 3 part challenge
I liked seeing the math and thought process behind this. It's way more entertaining than just the run.
2:03 that flickering on your MATH thing is caused by z-fighting. Z-fighting occurs when two polygons are being drawn on the *exact* same plane. Because of how rasterization and floating points work, depending on the camera angle, distance, etc, some parts end up being in-front while others behind, and when you change the camera etc this changes rapidly, as you can see.
To fix it, just offset them ever so slightly, e.g. 0.01 will often be good enough. But do note that the offset in a game like KSP, will be dependent on the distance from the camera. If they're right in-front of you, 0.0001 might be good enough. But if they're that far away, it might need to be 0.1 or something. But it's easy to fix.
2:03
*M A T H*
*Cue horror music and cheap B grade screaming.*
You built a space gun! Been quite a while since I've seen someone try that!
You know, this is actually a very useful way to get things into orbit.
Decouplers aren't more mass efficient than orbital rockets I think, but they should be better if you want to go further. Like interplanetary.
@@Stratzenblitz75 This way, you wouldn't require massive, laggy rockets just to got your interplanetary spacecraft to orbit. Makes testing them much less time consuming too. Could you please elaborate how you did the calculations for your successful decouplers to orbit ship? How did you figure out the delta-v needed to escape the atmosphere?
@@thesentientneuron6550 Yes! Fortunately, the math is quite simple. First, make your payload and figure out its mass (for example, lets say our payload is 2 tons). Next step, figure out how much velocity you need. For kerbin escape velocity, you need 3400 m/s, so lets you use that. Next, figure out the impulse you need. The change in momentum is just the mass times the velocity, so 3400*2000 = 6800000 N*s. Since the hydraulic detachment manifold provides 4500 N*s, you will need 6800000/4500 = 1511 decouplers.
To cut this down, I've learned that you can use physics timewarp to increase the decoupler impulse. With 4x warp you could get it down to 377 decouplers.
Yea that's still a lot. I think a rocket would be better suited. You can certainly make a rocket for less parts.
@@Stratzenblitz75 Thank you! I'd like to try it out nonetheless to launch something useful. Have you tested out separators too?
@@thesentientneuron6550 Good to hear! I hope it goes well.
What do you mean by separators?
Strat == sellout confirmed!!!1!!111
In reality, really cool video - I’m loving this new style that goes more in depth with the maths!
Only in KSP can you shrug off 750 Gs as “slightly high”
I don't even want to know how long it took to stage this...
Incredible, the fact you even attempted something which seems impossible and actually did it. Madman
im pretty sure this is not what they mean "Solid Fuel"
So, now this is ScottManzenBlitz 😂
Whenever there’s physics in a video I try to force myself to watch it. This one, I actually kinda almost sort of understood! I feel very accomplished.
Thats good to hear! If you ever want help with physics, feel free to come to my discord server and ping me. I'm always more than happy to help!
Bruh madlad got a sponsor, damn!
propulsion department : fuel engine is too difficult
stratzenblitz75 : use decouplers
propulsion department : ......
stratzenblitz75 :stonks
Oh my, this is . . . incredible. You and Brad have different styles i think, Brad uses hard parts to do hard things, and you use bonkers parts to do "easy things" but they aren't that easy due to the bonkers parts.
Thanks! I will admit brad is much better at optimization than I am. Brad is one of the best in the world at crazy optimizations in KSP and for that I admire him.
On my side, I mostly find odd things about the game and try to learn about them. I don't like the optimization part of it as much so I'll leave that for others.
Soooo, that force number. It's definitely the direct input value used for the Unity rigidbody's AddForce function, applied using the ForceMode.Impulse setting. The documentation describes it as such: "This mode is useful for applying forces that happen instantly, such as forces from explosions or collisions. In this mode, the unit of the force parameter is applied to the rigidbody as mass*distance/time.". Being that "instantly" for a physics engine really means "within 1 physics timestep", then it can be assumed that the physics timestep is set to 0.01 seconds.
(docs page: docs.unity3d.com/ScriptReference/ForceMode.Impulse.html)
Also, good old radial decouplers. Some of the handful of remaining models of mine that haven't been replaced in the intervening 8 years incidentally, and still finding new tricks after all that time.
I don't watch much KSP content anymore, but your dedication to the madness always keeps me watching.
Very interesting indeed. That perfectly explains what I observed. Thanks for the information NovaSilisko!
And especially thank you for the work did in this game. You gave the Kerbol System its charm
@@Stratzenblitz75 😭
What would be the difference between this launch and "landing" at thousands of meters per second?
Doesn't impulse have any effect on the structural integrity of the ship?
This. This is why I love KSP. The amount of fun you can have with a simple understanding of physics is amazing! Wonderful video!
So, if you added a fairing around the whole thing at the start, add a little extra power, and waited for the mun to be in the right spot, you might win a bet against an armourer.
Are suggesting a mun gravity assist? Because if so, that is certainly possible. I've actually done that before with a decoupler cannon, but opted for this approach in the video because the mun gravity assist orbit is ultimately unstable.
@@Stratzenblitz75 No, I was just making a Jules Verne reference, which would be to pass the mun and return
people : "video games makes you dumb and violent"
Stratzenblitz76 : "so here is a complete and accurate mathematical system on the physics of a videogame universe, creating a whole new study of forces"
Most video’s: wow only 0.000001 kg
This video: let’s just strip mine a small moon to build this rocket
I knew that someday somehow this would happen
I wasn't wrong
I mean the only logical thing to do now is to speed up 1 kg part to light speed. It would only take 119917 decouplers, plus you now have the sponsor money for epic NASA computer to run that
What the hell are your pc specs?! I have a nasa computer and even then, I still lag a hell of a lot more than you do.
I have a ryzen 3900x, but it can't run the game this smooth. Almost all my footage is sped up significantly
@@Stratzenblitz75 I assumed, thanks for the quick response! On average what FPS do you run?
I really enjoy this „teaching/explaining “ style videos. However i hope we will see another Musikvideo sometime. Nothing beats the „Duna using Elektrik Power“ video. :) Anyways, Im glad to see you getting a sponsor, you deserve it! Keep up the great work!
Thank you, I've got some more cinematic video ideas coming up! My channel is bouncing between these kind of videos and the music videos so I hope its been a good balance.
Amazing as always Stratz! :D What's the reason for not taking a more efficient trajectory, that would enable a lighter second stage? Too much heating at low altitude?
Thanks! Aiming the decoupler cannon is a pain: it has so many decouplers on the bottom that kraken attacks are frequent. Having it stand upright makes things more stable, even if its less efficient.
Nah not decouples to orbit its lag-and-launchpad-destruction-to-orbit
Basically, you've created a bullet with a kerbal payload.
Scientists: You can't just put a bunch of explosives under a payload and detonate to launch something into space, you need a slow burn
Stratzenblitz75: *I am about to do what is called a Pro-gamer move.*
I mean, it's basically just Project Orion but with fewer thermonuclear devices and less unnecessary mass in the form of protective equipment. :D
@@patrickharrington9394
And with only two detonations
to be fair you actually could. doing this and having your payload in one piece? That is impossible lol.
@@patrickharrington9394 see: thunderwell
Same with russia **super orion**
you know you are an advance KSP player when you whip out the spreadsheet
Where is the craft file?
Stratzenblitz: "there is no way i can do this" *a few moments later* "anyway so i did it"
but can you go to mun?
The thumbnail looks like some weird protein structure
LOL
You've discovered something amazing! Again!
This is like using max lvl+30 sonic bursts in ltf3
Awesome! An entirely new layer of Video Quality for you!
This mans gets a cleaner orbit with decouplers than I have ever managed with actual rocket engines
Make one with time to orbit being 10 seconds!
This mans computer is on another level
So much unnecessary florishes during the explanation. I love it
While they may have been unnecessary, I had a lot of fun getting them. I think I had too much fun now that I think of it.
How quickly can you reach orbit with decouplers? I’m wondering if we can get the time to orbit down to below 10 seconds.
thats unironically a really good way to get a quick burst of speed when needed
i added decoupler-based boosters for quick bursts of speed in some of my fighter planes, it allows me to outrun basically every missile in bdarmory and most of its addons, i also use it when atmosphere is thin and rapiers dont provide much thrust but dont autoswitch to rocket mode yet, pop the decouplers and my apoapsis is at 80-ish km
u need a metric fuckton of decouplers tho
i like to use decouplers to send ion-powered craft into orbit and to circularize em, why? cuz its neat
but the main use of these bad boys is in some of my shuttles, i have a decoupler-assisted takeoff cuz a disposable HDM-filled module gives u a fuckton of delta-V instantly
Me at 9 minutes in: "yeah, well, at least THIS one isn't gonna land on top of the VAB"
Me at 10 minutes in: ಠ_ಠ
Honestly, I really admire how much effort you put into that.
But if it was up to me, I would keep stacking them until I reached the goal :DDDD
I love how you walked us through the math.
Never forget that officially SWDennis did it first.
You can do anything with mods. To my knowledge, this is the first time it was done in the stock game.
Seriously this is just about my favorite YT channel. Thank you for every video!!
7:48
you're welcome
what are your PC specs? mine would just start catching fire...
Actually you can get as big ΔV as you want just with stacking decuplers on top of one another.
This is because that sum is like harmonic series (ua-cam.com/video/PQRttF8-iqA/v-deo.html).
If there was no mass of the payload you could bring (Jdecupler/mdecupler) out of the sum, and have harmonic series.
Having mpayload is just like taking terms from some term on, which is infinite-finite=infinite.
But of course this would work only if decouplers were fired immediately one after another(zero delay(infinite speed of sound in decuplers required.))
But there's a problem the growth is approximately logaritmic. It turns out 107069370133 decuplers are needed for orbital velocity at altitude 0 and 2 477 462 214 563 304 for escape velocity.
But this is actually not the true result, because escape velociti is smaller at that radius. Now I don't know how high those decuplers are, but if we say they're 1 meter, we get escape velocity of 1.879255171603899`*^6 Sqrt[1/(600000 + NN h decoupler)] . Set that equal to ΔV, and you get around 1.5 million decouplers(if it's launched from kerbin poles). So actually you would need way more decouplers for that, then to just build space eveator on the equator.
You can think of each decoupler as a stage with an engine outputting the force equal to the ejection force and consuming its propellant in 0.01s. Total delta-V scales with propellant in a logarithmic relationship, so even though the individual impulses keep getting smaller and smaller, it's the impulses approaching zero, which means the total delta-V always increases.
8:37 me after NNN
Sidenote: you want your text based indices typeset like $F_\mathrm{decoupler}$. The way you currently do is probably $F_{decoupler}$ which TeX interprets logically as d*e*c*o*u… which is why the spacing looks a bit off. By wrapping it in \mathit or \mathrm you convert it to typeset it like text. And you want roman (upright) indices because you are using an actual word, not a variable index like $i$.
here at 99.9k subs
Stage 1 separation confirmed.
Stage 2 separation confirmed.
Stage 3 separation confirmed.
Stage 4 separation confirmed......
This is the equivalent of that one manhole cover that got launched by a nuke into space
Incredible! :)
What kind of monster PC do you have that can run 18000+ collisions per second at a smooth framerate
(there's 3000 of them, I'm assuming they're glitching and colliding multiple times in one second)
Admit it: you used Bill as pilot to prod Bradley to ask you to hold his beer _again._
Read the description and watch the whole video before you say it’s copied.
Now, I'm no scientist of any kind, nor am I even very smart. But I feel like the math may not be entirely necessary for what boils down to, "Put lots of decouplers on airlock and fire."
Nice video, i really like your videos.
Keep doing that
And keep that math and physics
Lol
Still waiting for ksp comms network on kerbin and duna using ksp physics :)
Even tho its need 1 year i will wait
:)
SWDennis' design reminds me of the Apollo-Orion project lol
FTL machine using only decouplers? at least the only lag would be from releasing all the decouplers at once and the decouplers themselves
now you go to the mun
or to duna if you're brad
Interplanetary is the next goal! Look forward to that video.
Meanwhile, I cannot properly fly a MiG-15 through the Monte Karlo Course. YOU ABSOLUTE MADMAN.
First you subject bill to to over 500g, then you deorbit him without a spacecraft and then you land him in a tower. You are a madman.
So i've been thinking...
what if you combined this further with the fastest orbit time?
I understand you probably thought about this before and realized that the force you get is great but it happens over a much smaller time and doesn't give sufficient velocity to beat 33 seconds...
but what if a hybrid approach was used like this where the decouplers were fired right before the engines were, creating an energy boost with no drawbacks to help with accelerating faster... sub 30 second orbit?
4:07 Hmm, since "specific" in the physics context just means divided by mass, you could call the impulse/mass specific impulse... wait a minute.
Somebody hit the sun from the pad with decouplers. The required impulse is easy to calculate. The craft must move 70km in one frame so it never experiences any drag.
Now turn on G effects for Kerbals and Bill is reduced to instant strawberry jam.
Turn on g effects for structures and the whole thing is reduced to 2 thin pieces of metal full of strawberry jam.
It only now occurs to me that this technique could be used for a LKO speedrun. Being able to instantly reach high speeds should be a gamechanger.
Just a quick bit of constructive criticism: try recording in an area with less reverb, the echo is a bit distracting. Even just recording in front of a few pillows can really help decrease reverb.
I think the impulse is reported in kg-s ~= N-s / 9.81. That's where the 10x difference comes from.
Edit decoupler separetion force on cfg❌weird rocket + complex uiversity style math formulas ✅
Can I ask what you do for a living? I'm not sure if you're just mathematically minded and find it easy to understand or if you work professionally in the aerospace / physics / maths sector lol
next this man is gonna go to the mun and back using only the push of an antenna extending
Did i expect this?: yes
Did I know it’s going to happen?: no
Am i surprise?: FUCK YEAH
The editing is hillarious, the math relatable, the mission amazing
Next stop: MUN!
Jules Vern, eat your heart out XD
nooo you can't just make a spacecraft powered only by small explosions
stratzenblitz: haha decouplers go brrrr
Underrated :-D
I love it! Everything about this video feels so fresh and fun! Keep it up :3