Why SpaceX Was Forced To Jettison The Hot Stage Ring On Flight 4!

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In this Special Report we will examine why SpaceX is planning to Jettison the Interstage on the 4th Test Flight of Starship.
We will also investigate whether the Hot Stage Ring may have been ripped free during the landing burn on the previous flight test.
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Music Credits
0:01 Emmanuel Jacob - The Heir - Licensed
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2:10 Dear Gravity - Empyrean - Licensed
3:05 • Unrest
6:39 • Gently, Onwards
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15:20 Raz Burg - Night Chase - Licensed
18:25 Tamuz Derek - Blue Beings - Licensed
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23:13 Beat from www.beatopia.com/ "The Last Song Produced by Ghost"
Last but not least I want to give HUGE SHOUTOUT to the entire CSI Starbase team on discord. This dedicated team of 200+ agents with specialties ranging all across the board, has been crucial in getting the most accurate info for these episodes. Couldn't do it without yal!

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2 июн 2024

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Комментарии : 970

@carcinogen60yearsago Месяц назад

Your deep dives are the best on RU-vid.

@palmedor9916 Месяц назад

yes 100%

@Coasterlocity Месяц назад

No contest

@Quesnt Месяц назад

The Walter Cronkite of SpaceX investigation...Zackter Goldkite?

@ColtsMan2006 Месяц назад

Without a doubt

@steveperreira5850 Месяц назад

For once, enlightening speculation!

@lorenbrown3150 Месяц назад

As a retired aerospace engineer, I appreciate your detail, thank you!

@dumpsterdiner Месяц назад

I was gonna say it's because the best part to recover is no part to recover, but your explanation is a lot more thoughtful 😅

@neobrandeggen Месяц назад

Best part is no part, so really they should just cancel the program lol

@adrianbrandrud6155 Месяц назад

@@neobrandeggen 😂

@ASDasdSDsadASD-nc7lf Месяц назад

It is insane to me that with 22% unemployment Space X can't hire ONE INTERN to report on design, design changes, theories, progress, and plans.

@TheZacman2 Месяц назад

Also, the best part to replace is no part to replace. What's worse, having a part to recover after each launch, or a part to replace after each launch?

@takanara7 Месяц назад

@@ASDasdSDsadASD-nc7lf Why would they want to report stuff to the public? Most space companies don't report anything until they're done, we only know all the details with starship b/c they're building it on the side of a public road and it's gigantic, so the public can see everything. Also the unemployment rate isn't 22%, lol.

@Shadare Месяц назад

Zach always has a scoop nobody else has. I had never heard someone talk about the interstage ring coming off in IFT-3. Totally makes sense now why the booster looked like it didnt understand it's own shape. I thought it was because they didn't reprogram it to account for the interstage.

@CSIStarbase Месяц назад

lol thats a good way to put it. "Who am I???" lol thats why I added the commentary because I couldn't stop laughing as I was thinking about it from the flight computers perspective

@angrydoggy9170 Месяц назад

@@CSIStarbaseA flight computer with an existential crisis going on. Now that’s a real challenge for any psychiatrist.

@chuckevans2792 Месяц назад

@@CSIStarbaseGood commentary, subbed!

@adriank8792 Месяц назад

As always, you absolutely nail the CSI Starbase name, this time more than ever. This was pure CSI! That never would have occurred to me about the hotstage ring and the shadow. I also love how you present your findings, explaining your reasoning step by step and showing us alternative conclusions. I really wish that more RU-vidrs were like you. YT would have been a much better place!

@heartysteer8752 Месяц назад

Shadows yes, rest not so much. The latches for the ring are under it, part of the booster. They couldn't have been damaged during hot staging.

@paulmichaelfreedman8334 Месяц назад

Don't ya just love a channel with both science and engineering prowess? Indeed, channels like this one are very rare.

@Schinkeldink Месяц назад

@@paulmichaelfreedman8334 And not to forget, the ability to clearly communicate these findings and give the viewer all the info to come to their own conclusion, not trying to subtly persuade in any direction. I really wish this was the quality of political news. The world would be a better place.

@737smartin Месяц назад

Great analysis, speculation, and presentation. 🏆 💫 🎉

@Starsoon1 Месяц назад

Best Starship related channel, love your work Zack

@Lost-In-Blank Месяц назад

Zack, I'm so happy you're back making videos again !!! WAI and Marcus House are good, but you add so much extra technical detail, and I really really missed that. Thank you Zack and all your team and collaborators for your truly excellent videos.

@rbvemulapalli Месяц назад

WAI and Marcus are information consolidators. They are not technical guys. They are good for keeping us abreast with whats happening.

@eatonkuntz Месяц назад

Who's here after Schrödinger's Flap

@allonyllc1879 Месяц назад

LMAO right

@johnbrooks6243 Месяц назад

Because it was dead and alive at same time? Lol but it functioned all the time tho

@eatonkuntz Месяц назад

@@johnbrooks6243 yep and the dirty lens keeping us wondering

@johnbrooks6243 Месяц назад

@@eatonkuntz oh hahahaaha got it

@32rq Месяц назад

Those shadows. CSI for sure.

@ppaschka Месяц назад

@3:54 The oxygen in the landing tank would settle due to drag on the booster, not rise. Drag is pushing the structure up, so the oxygen moves down relative to the booster. The same settling happens during an engine burn.

@darylbardo Месяц назад

Was going to say the same. But a full header tank probably minimizes slosh and maximizes the usable fraction of remaining propellant when the tank is nearly empty.

@jordanhenshaw Месяц назад

It’s in free fall, so it’s a zero g environment. Drag is negligible here. Or is that actually true?

@andrewvaughan4256 Месяц назад

@@jordanhenshaw It is deep in the atmosphere, and probably close to terminal velocity, before the landing burn starts.

@jordanhenshaw Месяц назад

@@andrewvaughan4256 Hmm. This is interesting. I'm going to rewatch the Veritasium video on this. I'm pretty sure this is a scenario where the fuel is an inertial observer but am not sure. But what I said above may be incorrect. Hmmmm.

@davemanmartin Месяц назад

I’m not sure if it’s at terminal velocity, but there is definitely drag on the rocket slowing it down so the propellants will be settled in that situation. The booster doesn’t belly flop so that part should be easier (bottom of tanks is still down)

@privateerburrows Месяц назад

Confirmed yet again; this is the best Starship channel on YT by a long shot. The Sherlock Holmes of rocket engineering.

@harlycorner Месяц назад

The water droplet sound was funny 🤣🤣🤣 22:42

@taylortremblay3870 Месяц назад

I was not expecting this today, and I’m happy to be reminded of the depth your deep dives go too. Amazing!

@ganjalogic Месяц назад

I just discovered this channel and I want to say that I really appreciate how much effort you're putting into these videos. I'm learning more about Starship per minute than like any other video I've watched so far.

@kalkovonschpritzendorf1914 Месяц назад

I like how every time you suggest a theory, you humbly also suggest the possibility of you being wrong. This is the level of self-reflection that many youtubers lack. Great content, I found your channel today and I'm looking forward to see more.

@CSIStarbase Месяц назад

Thank you! Yeah often times my own team disagrees with my theories so I have gotten used to phrasing things in a certain way.

@kalkovonschpritzendorf1914 Месяц назад

@@CSIStarbase I learned much more from your video than I expected. I got used to Starship related channels being just rundowns of the latest news, so I'm glad you brought in some fresh new views and insights.

@CSIStarbase Месяц назад

Yeah I don’t do weekly summaries. Only deep dive investigations.

@kalkovonschpritzendorf1914 Месяц назад

@@CSIStarbase This earned my subscribe, I'll look into more of your videos for sure. Good luck with making them. I appreciate that you found the time to answer my comments, despite having 81k subscribers.

@CSIStarbase Месяц назад

I try to respond to all unique comments. Thanks for subscribing!

@ashtorak Месяц назад

Yes, the hot stage ring can now be jettisoned in flight with the latest StarbaseSim update ;) It's always a pleasure to contribute to these videos! :)

@r0cketplumber Месяц назад

At 3:55 you are mistaken about the need for a completely full LOX landing tank- during aerodynamic freefall, the wind drag will push upward on the booster and cause the LOX to settle to the bottom of the tank just fine. The same thing already happens on Falcon 9 boosters, there's no way for gas to accumulate on the bottom of the tank absent a very high heat flux causing boiling.

@CSIStarbase Месяц назад

Yeah I thought about that and wasn't certain if I was fully correct on that. I wasn't sure if the drag was enough to fully settle it to the bottom of the tank

@heartysteer8752 Месяц назад

@@CSIStarbase And aren't the latches for the ring under it, part of the booster? They couldn't have been damaged during hot staging. They left booster and ship the same and just added the ring between with the existing latching components.

@bryanillenberg Месяц назад

@@heartysteer8752 The ring is steel: very conductive. Heat can easily soak through

@ironspider9280 Месяц назад

Your starship videos are hands down the best on youtube.

@removechan10298 Месяц назад

This video deserves 10M views

@RichieMason Месяц назад

When you initially shared the shadow images on X, I was very skeptical about the HSR detaching. However, now I know which shadows I'm looking for and seeing the way that the nav system overcorrected at the same time, I'm a believer. Great work Zach!

@peters619 Месяц назад

Well done Zack on yet another superb quality video. Yours a a whole new level of quality and probably the best on RU-vid on Starship. Your hypothesis on the interstate falling off 6:30 into the flight may have some significant assumptions but all very plausible. Even if you are wrong in the end you do it with style and some very well thought out possibilities and I enjoy hearing your thoughts and reasoning. Again well done.

@schrodingerscat1863 Месяц назад

Another tour de force of investigative journalism, easily the best presentation on this I have seen anywhere.

@robertobruselas3952 Месяц назад

Your shadow analysis regarding the hot staging ring is amazing. I love your channel. Keep rocking team CSI Starbase!

@mycophyle Месяц назад

Thanks Zack! So good to see you back! After the past few months I was fearful you stopped giving us your great analysis and deep dives. Thanks again for giving us a easy to understand overview of the details behind what has been observed but what Space X probably wants to keep proprietary!

@SyntheticSpy Месяц назад

He mentioned on Twitter that he’s been gettin most of the way through scripting a few videos, but each time something comes up that makes him prioritize that for a video instead, which is why it’s been so long

@danheidel Месяц назад

Another thing to consider is that the current hotstaging ring is quite non-optimal. It's replicating the top surface of the tank with a whole second structure and the vertical slats are going to be a lot heavier than the equivalent truss structure they are going with on v2+. My guess is that the improved hotstaging ring will be taller to increase the amount of space for the exhaust gasses, especially from the center engines, to escape and that the top of the stage 1 tank will have a sharper curvature close to a conical shape to stand up to the exhaust forces with less material. The existing ring is essentially redirecting the force of 3 raptors at nearly point blank range using a nearly flat diaphragm almost normal to the exhaust vector which is pretty much the worst way to have to deal with those loads. The V2+ hotstage structure is probably going to be significantly lighter, reducing the need to discard it.

@sentinel76 Месяц назад

Never minding that a future interstage will probably be integral to the booster structure instead of a clip-on.

@imconsequetau5275 Месяц назад

All that effort to flatten the top bulkhead may be in vain now that the inverted cone is needed.

@alexsender4986 Месяц назад

im so glad you releasing new video few days before launch when hunger for those at its peak

@kanukistani2984 Месяц назад

Remember that the current booster was NOT designed with hot staging in mind. It was supposed to be spun off of the starship in the same was the starlink satellites are deployed. When they decided to hot stage, they just manufactured this interstage and put it on top of the boosters they already had to test the concept. My personal theory is that Booster/Starship 2.0 will be designed from the get go with hot staging applied and this issue goes away at that point.

@katratadventures9571 Месяц назад

I totally agree with this view.

@kewltune4683 Месяц назад

Heck yeah! I’m giving this thumb up now before the premiere start because I know it’s going to be great just like all episodes before this one!

@RickL_was_here Месяц назад

I did the same. 👍

@johndoepker7126 Месяц назад

Helluva Video, Zack !!! I can't wait for Flight 4 and your deep dive analysis after!!! Thanks for everything!!! ❤

@Austin_Healey Месяц назад

Thanks again Zach! Great analysis as always! You deserve about a million more subscribers.

@johnybepp Месяц назад

this splash sound of hot stage ring was hilarious

@kukunishad Месяц назад

Best analytical video of the Flight 3 on the YT so far. Shadows blown my mind 🤯

@CSIStarbase Месяц назад

Honestly I was originally not planning to do a flight 3 analysis. I kinda got forced into it thanks to that tweet

@kukunishad Месяц назад

@@CSIStarbase Which tweet?

@CSIStarbase Месяц назад

My own tweet that I mentioned in the episode

@CSIStarbase Месяц назад

The responses to it forced me to make a video because a lot of people strongly disagreed with what I said.

@ajctrading Месяц назад

Great to see the ring watchers and the shadow watcher combine to become a knowledge seeking force of extraordinary magnitude

@SuperShuki Месяц назад

Zack, your explanations are awesome - clear and easily understandable. That is hard to achieve, great job!

@allenahale1 Месяц назад

I enjoy your posts - precise, to the point, authoritative and most of all "NO DRAMA"! Thank you.

@peterpicroc6065 Месяц назад

Yeah, the other channels seem to speak with their eyebrows in the stratosphere, superlatives everywhere and exclamation marks after every sentence.

@CarbonaceousChondrite Месяц назад

This IS IN FACT the explanation to my puzzles during IFT-3! The struggle of the grid fins in steering the top of the booster was a huge brain teaser, now it all is very clear. Thanks to all involved people, great job ✨️

@Buddha_the_Pug Месяц назад

Love me some CSI Starbase! You always provide info nobody else seems to even be thinking about

@hymnodyhands Месяц назад

Here is what I love about this channel... past all the noise around Elon Musk, you take us into the engineering of how whatever happened and can happen. I used to love watching CSI, but the violence depictions became too much... this channel gives me back what I love but aimed toward building and progress!

@big21o3 Месяц назад

I was hoping there would be an update before flight 4. Thank you

@asraharrison Месяц назад

Zack, Your content is just friggin' amazing. Thanks for all you do. Best content on YT!

@macebobkasson1629 Месяц назад

Amazing. Thanks for caring so much about this and going beyond others to provide us such in depth explanations. You’re my favorite layman.

@kersebleptes1317 Месяц назад

Hitting those high standards again, Zack & team! Many thanks, and the sky's not the limit! 🏆

@MihirrPanchaal Месяц назад

Thank you for this short video (short for you and your fans!)

@morgunkorn_ Месяц назад

Absolutely incredible analysis, thank you for the in depth video, i'm amazed at what the community has achieved, the 3D models are always extremely impressive

@benjaminrickdonaldson Месяц назад

Best spaceX news channel. Your videos are amazing

@peterpicroc6065 Месяц назад

Another great video. This is THE Starship channel. You're the best!

@robertboothe3405 Месяц назад

Reasonable explanation. Good balance between details and clarity for non-rocket scientists.

@ismailnyeyusof3520 Месяц назад

Well done Zack, you provide so much thoughtful analysis that shines a clear beam of insight into what must have been a completely chaotic situation! Thank you!

@zukacs Месяц назад

Chasing Shadows was lightly said. You and other folks involved are real wizards

@CSIStarbase Месяц назад

A lot of outside help involved on this one for sure.

@drachefly Месяц назад

wow, TIL that there was a TV show named that released 5 months after the Game In A Bottle game of the same name. What a weird coincidence.

@Barthhhelona Месяц назад

Wow, no one presents this level of technical detail and digs in like you. Very impressive analysis.

@94nolo Месяц назад

I literally checked your channel yesterday to make sure I didn't miss a video from you. man these are great. thanks Zack

@GaryBickford Месяц назад

Whether your soeculation is correct or not, i appreciate your comprehensive and disciplined analysis and the technical support of your contributors.

@kenmaritch7913 Месяц назад

I have been waiting for a new video for weeks! I can’t wait!

@bobjoatmon1993 Месяц назад

Best SpaceX reports on RU-vid

@mikebridges20 Месяц назад

Zack, that presentation is the best analysis of IFT-3's boostback and landing sequence that I've seen; excellent work!

@mvot966 Месяц назад

Once again, well researched, well presented, well done!

@jimmarburger611 Месяц назад

You rock. Real details and an excellent analysis.

@allanrose3661 Месяц назад

Great insight into this huge rocket. Keep these updates coming.

@Edward-tz7xz Месяц назад

…Zack is my go-to guy on the details of Starship build and launch. He provides the physics explanations needed to truly understand what is happening. Thank you Zack.

@NepahwinMokwa Месяц назад

Really excellent job. Loved the vid and all of your work. Can't wait for the next one.

@mosiprop Месяц назад

terrific content! Many thanks to you & your partners!

@meanderinoranges Месяц назад

Brilliant work as always!

@michaeldonnelly2977 Месяц назад

Huge respect to you. This was a great episode with some very well explained ideas. Awesome job.

@ronbridegroom8428 Месяц назад

good stuff, thanks for what you all do

@erickdaros911 Месяц назад

Man your channel is INCREDIBLE! Thank you for another masterpiece, you are the BEST! 🚀

@B0M0A0K Месяц назад

No one does this as well as you do Zack. Hell, you get a thumbs up from me just for being here 🙂 I really like that you aren't shy on telling us when people have become "grumpy" about a comment you have made elsewhere. That's definitely owning it. Well done.

@CSIStarbase Месяц назад

lol yeah I don’t want those people to think I’m ignoring the things that are clearly annoying them about the way I choose to phrase things in my posts on 𝕏

@Minoguai Месяц назад

I am thoroughly impressed by the clarity and depth of your explanations. Your ability to break down complex topics into easily understandable visualizations is outstanding. Keep up the excellent work!

@Goddard_Is_My_Hero Месяц назад

Great video!!!! I enjoy the work you put into this effort Zack.

@thomasttrr Месяц назад

Juicy. Can’t wait to see the video!

@thomasttrr Месяц назад

Shorter than I hoped for but I’ll take it! Thanks for the great video!

@matttownsend7119 Месяц назад

Excellent as always, thanks

@gregedmand9939 Месяц назад

At long last! Where the hell have the best SpaceX videos on YT been?

@nirbhay_raghav Месяц назад

Finally after a wait for 3 months❤ Love you Jack for sharing all the knowledge. What a timing for the video. Can't keep waiting for more.

@SMathai Месяц назад

Amazing shadow sleuthing by all involved! The amount of detective work that goes into this is incredible.

@jeef7980 Месяц назад

Killer contend Zack! I always appreciate your work!

@sum_rye_hash_321 Месяц назад

YESS i've been hoping to see another CSI Starbase episode for a while now!

@Edward-tz7xz Месяц назад

I absolutely love this channel. Keep’em coming please.

@NominalOrbit Месяц назад

Let’s go Zack!!! 🚀✨⚙️

@removechan10298 Месяц назад

Amazing analysis and insight

@AdamRaudonis Месяц назад

Such an incredible video!!! One of your best yet!

@sheldroid Месяц назад

Excellent content as always. Thank you, sir and all the team.

@chammockutube Месяц назад

Mechanical Engineer(ing) respect Zack!!

@rodgerraubach2753 Месяц назад

A very good presentation, and a content-based description of what may have happened on IFT-3. Great engineering-based analysis! Bravo! A respite from many of the AI generated voices on other channels, whose content never lives up to clickbait titles.

@adminsparkes2450 Месяц назад

Congratulations on your channel, very informative and well presented.

@toadsauce8091 Месяц назад

I’m always excited to see your next video. Great job!

@jaeluatl Месяц назад

Welcome back and thank you for the in-depth video we enjoy all of them, my youngest son wants to be a ai- nautical engineer and you are a great inspiration for us in our house as well as very intelligent and informative

Месяц назад

Your Analyses are the best!! Please more.

@jamescrawford5330 Месяц назад

Wonderful presentation!! A mixture of engineering and easily understood mechanics which the layman can understand. Thank you for simplifying complex issues and asking questions that I am considering. Also, your verbal skills are top notch. You make the listener comfortable which makes for a pleasing learning experience. Keep up your awesome research!! Till next time!!! 👏👏👍👍😎🇺🇸