Decouplers to Orbit - KSP 1.10.1

[@Stratzenblitz75]

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.

[@cloverdove]

i do miss the eye-candy cinematics, maybe have every video alternate between commentary and cinematics? just an idea

[@Stratzenblitz75]

@@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.

[@cloverdove]

@@Stratzenblitz75 ah, that's good to hear! i think the jool ssto did that well, the combination of cinematics and commentary

[@mogol109]

Why was your arm shaking so much showing off the wallets?

[@Stratzenblitz75]

@@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.

[@Alyosha15]

you forgot to add stripes, they make rockets go faster

[@marcus757fugaming7]

What!

[@liquidmech1727]

and red

[@HangarGangOFFICIAL]

@@liquidmech1727 Warhammer reference

[@merf5549]

I Hope this Is a joke , it’s a joke right?

[@HangarGangOFFICIAL]

@@merf5549 bruh no it's facts stripes and flames make things go faster

[@D.C.7.3]

7:40 Yes, 764 Gs is "slightly higher" than 1

[@calebhouston5799]

Only slightly...

[@AbsoluteHuman]

I mean, on the universal scale of things... It's far less than from 0 to infinity!

[@TheOddHog]

How can you actually see the amount of Gs higher than the number on the gauge.

[@bingus454]

I mean I could survive that easily

[@theholypeanut8193]

Yes, 764x more is slightly...

[@capnrotbart]

Actual Title: Animating Text in KSP

[@Stratzenblitz75]

I had too much fun with the b roll, I'll admit :P

[@ClemensAlive]

I have questions... at first: ..... WHY?!

[@siriusk1453]

Why not?

[@wyldcat9396]

@@siriusk1453 Exactly

[@Stratzenblitz75]

Its not about why, its about why not!

[@alexsiemers7898]

Engines are too unreliable

[@DJTrainBrain]

@@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!

[@sigstackfault]

The absolute lunatics at Ridge actually sponsored this madman.

[@ovrsurge4689]

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.

[@darkySp]

@@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"

[@erictheepic5019]

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

[@photonicpizza1466]

@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.

[@MandMs05]

@N. Warner Did you ever go on to learn trig for KSP?

[@SD11A]

Stratzenblitz and Bradley uploading at the same day i'm gonna scream

same

[@Stratzenblitz75]

I swear its a conspiracy. I don't know why our upload schedules have synchronized for this.

[@RpattoYT]

@@Stratzenblitz75 _Ask Bradley, if he's also on his period. That would be the mother-load._ Ew.....

[@Avetho]

@@RpattoYT I don't know how to feel about this.

[@RpattoYT]

@@Avetho Hey maybe you're in sync too or maybe it's just us girls...

[@dunodisko2217]

6:07 Stratzenblitz, the only guy who can turn an angry bush into a frag grenade.

[@Kaebuki]

Whenever you do a crazy video like this, I feel bad for your PC XD

[@thedepression950]

When my laptop even cant candle roblox

[@alexanderpadeyev5846]

@@thedepression950 I Can Handle Legends Of Speed In My Phone

[@thedepression950]

@@alexanderpadeyev5846 Wow

[@alexanderpadeyev5846]

Also 3008 But A Little Bit Slowly

[@thedepression950]

@@alexanderpadeyev5846 you must be rich or something

[@gonun69]

I'm kinda surprised that craft didn't burn up immediately with such high speeds at such a low altitude. Impressive as always!

[@Stratzenblitz75]

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!

[@britishneko3906]

@@Stratzenblitz75 ah yes *Painlessly* I wonder what those kerbal felt going from 0-100 in an instant

[@morgansmith1529]

@@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

[@elopeous3285]

I love that TIMED decoupler scene. Genuinely awesome. also, man's just flexing his threadripper right now.

[@Stratzenblitz75]

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.

[@m.streicher8286]

I liked seeing the math and thought process behind this. It's way more entertaining than just the run.

[@thesentientneuron6550]

You know, this is actually a very useful way to get things into orbit.

[@Stratzenblitz75]

Decouplers aren't more mass efficient than orbital rockets I think, but they should be better if you want to go further. Like interplanetary.

[@thesentientneuron6550]

@@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?

[@Stratzenblitz75]

@@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.

[@thesentientneuron6550]

@@Stratzenblitz75 Thank you! I'd like to try it out nonetheless to launch something useful. Have you tested out separators too?

[@Stratzenblitz75]

@@thesentientneuron6550 Good to hear! I hope it goes well. What do you mean by separators?

[@agtshaw]

Next: reaction wheels to orbit

[@realtired3670]

he could use the same catapult trick as in the jet engines to orbit

[@mytiliss682]

@@realtired3670 trebuchets gone too far

[@Stratzenblitz75]

I think I could do that. I want to give it a try at some point.

[@agtshaw]

@@realtired3670 thats what i was thinking

[@agtshaw]

@@Stratzenblitz75 certainly possible

[@tristianity8529]

Incredible, the fact you even attempted something which seems impossible and actually did it. Madman

[@beaclaster]

Strat: shows the equation Me: Fat (Fdt)

[@Stratzenblitz75]

Integration of force can indeed be very fat.

[@wyldcat9396]

Why is Stratzenblitz's reply supposedly 5 minutes before the comment itself? Is youtube being drunk OR IS HE A TIME TRAVELLER

[@JetfireBlak]

@@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.

[@wyldcat9396]

@@JetfireBlak ah

[@alt8791]

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.

[@Stratzenblitz75]

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!

[@siriusk1453]

Stratz and Bradley upload in the same day . Is this Staged?

[@realtired3670]

maybe, but the decouplers sure were

[@WasatchWind]

check yo stagin

[@snigwithasword1284]

You built a space gun! Been quite a while since I've seen someone try that!

[@lost4468yt]

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.

[@hubertguilmain3286]

propulsion department : fuel engine is too difficult stratzenblitz75 : use decouplers propulsion department : ...... stratzenblitz75 :stonks

[@fiveoneecho]

This. This is why I love KSP. The amount of fun you can have with a simple understanding of physics is amazing! Wonderful video!

[@Saturn_57]

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

[@jbritain]

Strat == sellout confirmed!!!1!!111 In reality, really cool video - I’m loving this new style that goes more in depth with the maths!

[@TeraV]

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.

[@kerbonaut2059]

Bruh madlad got a sponsor, damn!

[@greentea1396]

2:03 *M A T H*

[@Pyxis10]

*Cue horror music and cheap B grade screaming.*

[@ottohowe3021]

I love how you walked us through the math.

[@Daniel-dp7ey]

*mentions SWdennis* me: oh no

[@siriusk1453]

At least it isn't Danny 2462- oh wait he actually mentioned that in his 3 part challenge

[@MartinMizner]

Never forget that officially SWDennis did it first.

[@Stratzenblitz75]

You can do anything with mods. To my knowledge, this is the first time it was done in the stock game.

[@j.r.7339]

Awesome! An entirely new layer of Video Quality for you!

[@imazekk752]

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"

[@SameBasicRiff]

Seriously this is just about my favorite YT channel. Thank you for every video!!

[@bottlekruiser]

You've discovered something amazing! Again!

[@WasatchWind]

Really great quality in this video. I hope your channel skyrockets at the launch of KSP 2.

[@Stratzenblitz75]

I'm very excited for KSP 2. As hard as they will try, they won't stop me from breaking the game ;)

[@ladyellen7993]

This mans gets a cleaner orbit with decouplers than I have ever managed with actual rocket engines

[@maxreimer1088]

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!

[@Stratzenblitz75]

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.

[@ticklemesenpai447]

I really love these conceptual videos with the mathematic explanations.

[@Cby0530]

The editing is hillarious, the math relatable, the mission amazing

[@MrCool-lo3ls]

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.

[@michaelcardinal8561]

This mans computer is on another level

[@znek4288]

He really pulled a dude perfect with gliding into that control tower from space

[@Halbostfriese]

One can only imagine the amount of effort that went into the ingame footage... Outstanding work, as always! :D

[@scarfbandit177]

I really liked how you showed your design process in this video & used a nice spreadsheet- entertaining and educational:))

[@omnithea]

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.

[@Stratzenblitz75]

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.

[@ecogreen123]

Stratzenblitz: "there is no way i can do this" *a few moments later* "anyway so i did it"

[@mrcalvinator0]

Upon launch, our kerbal is instantly liquefied, creating a delicious beverage for us to enjoy on our short trip

[@untitleddocument8651]

Yaaaaay, going to orbit on a space gun and landing on a tiny platform. I have watched this video several times, it is very good.

[@pikpikgamer1012]

Can’t wait to see what madness you will do once KSP2 is out

[@cloverdove]

that's stupidly impressive. you keep outdoing yourself, every video more insane than the last. keep up the work!

[@linecraftman3907]

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

[@kalj7]

Super cool video and accompanying calculations and explanations!

[@Stratzenblitz75]

Thank you! I hope you learned something, or at least found something new to do in KSP

[@antonsch25]

Somehow you still find ways to blow our minds🤯👍

[@Agent-ic1pe]

Just saying, the intro was awesome. Very cinematic and matched the commentary.

[@ManiakPL22]

you know you are an advance KSP player when you whip out the spreadsheet

[@1000-THR]

This a very good video. This was very high quality in my opinion.

[@manvslife271]

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.*

[@patrickharrington9394]

I mean, it's basically just Project Orion but with fewer thermonuclear devices and less unnecessary mass in the form of protective equipment. :D

[@jpase]

@@patrickharrington9394 And with only two detonations

[@oceanbytez847]

to be fair you actually could. doing this and having your payload in one piece? That is impossible lol.

[@dsdy1205]

@@patrickharrington9394 see: thunderwell

[@i_eat_glue9322]

Same with russia **super orion**

[@chrsfincher]

Lol was not expecting the ridge add at the end but way to go man. I'm always down for more efficient content whoever is paying to make it

[@Pacca64]

I love it! Everything about this video feels so fresh and fun! Keep it up :3

[@snosibsnob3930]

Congrats for your first (?) sponsor!

[@Stratzenblitz75]

Thank you! Yes, this is my first sponsor.

[@jakubmejzr3917]

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

[@thatsomeone3818]

It's simple, place so many decouplers it becomes a space elevator, which you can then decouple yourself right at kerbo-stationary orbit.

[@tomlischke2726]

I can’t even do boosters & engines to duna, and my dude uploads this

[@jrund1355]

This intro is so cool and neat.

[@eggbun]

Holy kraken that productions ramped up

[@halogeek6]

Okay either a that tower landing was some next level flex. *OR* it was a fluke.

[@joelnord4699]

what an absolute madman

[@tmbottegal]

This is basically shooting someone out of a cannon into orbit. Well done.

[@halyoalex8942]

Aka: "The most convoluted and Kerbal way to get to the runway island"

[@bleach-chan3199]

Dude, the part at 2:42 was pretty cool ngl

[@raikkappa23]

Daaaamn stratz, finally got a sponsor! Congrats!

[@Stratzenblitz75]

Thank you! The Ridge was a pleasure to work with. While most other companies demand an ad at the start of the video, the Ridge let me integrate at the end like I wanted to. Overall, I'm pleased with my partnership with them.

[@the_HoDeok]

Incredible! :)

[@carrotylemons1190]

Most video’s: wow only 0.000001 kg This video: let’s just strip mine a small moon to build this rocket

[@fridaycaliforniaa236]

So, now this is ScottManzenBlitz 😂

[@spudthespudgungamer7112]

A writhing mass of decouplers

[@Electric_Bagpipes]

you weren't kidding in that stream... nice!

[@nominalaerospace2258]

Meanwhile, I cannot properly fly a MiG-15 through the Monte Karlo Course. YOU ABSOLUTE MADMAN.

[@NovaSilisko]

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.

[@Stratzenblitz75]

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

[@NovaSilisko]

@@Stratzenblitz75 😭

[@TheDarkEcho6]

Outstanding. I will be expecting you to get hired to NASA any day now.

[@Humanoidmp]

Congratulations! You invented space cannon

[@fribigy47]

7:48 you're welcome

[@Ev3rardd]

Basically, you've created a bullet with a kerbal payload.

[@pop5678eye]

The first video I saw from SWDennis was building a Kraken decoupler tower.

[@quadg5296]

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.

[@cadetkohr5508]

Getting into orbit with what is effectively an artillery cannon.

[@spacenorman8624]

I fully expect a "Only decouplers to Minmus and back" video from Bradley Whistance in the near future.

[@Stratzenblitz75]

Not if I get to it first!

[@KrazyKaiser]

It's like firing a cannon that then fires another cannon at the apex of the cannons arc.

[@highfivedog2336]

Bill has just completed the highest free fall in human history

[@arshaanalamkhan]

I knew that someday somehow this would happen I wasn't wrong

[@God-ch8lq]

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

[@TheFirstNellah]

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

[@iCore7Gaming]

Next step, Eeloo and back with decouplers

[@Etropalker]

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.

[@Stratzenblitz75]

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.

[@Etropalker]

@@Stratzenblitz75 No, I was just making a Jules Verne reference, which would be to pass the mun and return

[@trigger7ff6]

this is like some sort of twisted alternate dimension ksp where instead of adding more boosters you add more RPDs

[@dr.strangelove6118]

this is madness

[@GuybrushKerman]

Ridiculous. I Love it.

[@yushili1104]

The thumbnail looks like some weird protein structure

[@YICHEN-k8h]

LOL

[@ur_pilot_4_2day82]

next this man is gonna go to the mun and back using only the push of an antenna extending

[@d.thieud.1056]

This has to be one of the fastest and easiest ways to orbit once you've built the craft

[@Stratzenblitz75]

Yea, I'm thinking this will have some potential for low mass missions since you can get a ton of Delta V out of decoupler stack.