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In this weeks Special Report we will explain why SpaceX’s apparent issue with concrete underneath the Orbital Launch Mount has been extremely overhyped. We will also examine the origins of the new Water Deluge System that will be installed at Starbase in the near future.
Appendix G – Exhaust Plume Calculations
https://www.faa.gov/space/stakeholder_engagement/spacex_starship/media/Appendix_G_Exhaust_Plume_Calculations.pdf
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Last but not least I want to give HUGE SHOUTOUT to the entire CSI Starbase team on discord. This dedicated team of 100+ 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!
0:00 Intro to Concrete Issues
4:52 What is Fondag?
7:15 Fondag Thermal Energy Resistance
11:38 Squarespace Ad
13:01 New Fondag Pad Laid – Allegedly
13:26 11 Engine Static Fire Test
14:10 Aftermath
14:27 Pad Replaced….again
15:40 Plot Twist
16:41 Fondag Final Thoughts
18:17 Berm Re-design
19:08 Starbase Water Deluge
19:34 Deluge Parts Spotted
20:24 Deluge Pipe Renders
20:45 Deluge Pipes in Sanchez
21:11 Where will the water come from?
22:35 KSC Comparison
22:55 Water Tank Designs Explained
26:18 BFR Deluge System
29:19 Episode Roundup
30:20 Member’s List
31:08 Content Creator Credits
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shit man u good!
How many does he have to fire before we have to worry about the Earth moving off its axis…….
Considering Best Part is no part, instead of using what russians use i.e. a flame trench spaceX is using concrete and then all sort of added hardware… its just waste of resources which would have been useful in other ways. If engineers could come up with that much complex launch table and catch arms(chopsticks) they could have come up with something I am sure that is compatible with big n deep flame trench. Well its all engineering building and moving forward.
What could be the reason for SpaceX for not using a flame divertor that could solve 90% of the problems instead of fighting things out with raptor exhaust blasts without it???? Anyhow, this is a base launch pad on Earth and having one will anyway jeopardize their mission altogether?
Facts : check
Giving reasons for presumptions and what evidence one has to think the things you do : check
Not being over the top hyperbole fan boy : check
Having an understanding of engineering : check
Having knowledge of engineering : check
Having common sense : check
Being critical and not just parroting marketing speak by SpaceX : check
Subscribe earned : check
A super cooled water deluge system? Water can be super cooled to -48.C at standard pressure and still remain liquid. By using outer jacket to refrigerate the water tank, perhaps with liquid nitrogen, you would increase the water density mitigating the lost header pressure, not require additional pressurisation, whilst increasing its ability to absorb heat. SpaceX super cool their propellants, why not the water deluge too?
39B FTW
I was always confused why there wasn’t a water deluge. You answered a lot of my questions. Food for thought. Is it possible they are trying to design launch structures that don’t use water because of course water won’t be in abundance on mars? They won’t have to fire many to get off the surface of the moon. But mars still has something like 38-40% of earths gravity so they will have to fire most of the engines? Obviously water deluge won’t be possible on mars because it is so critical? Idk.I could have nothing to do with the launch pads they planned for mars. But that just came to thought when thinking of reasons why they didn’t automatically building a water deluge from start ? 😊 if anyone has more information on this I would be interested in knowing space x thoughts on this
Baalbek
This is why I'd like to see Elon use my non-rocket technology.
It removes all need for such towers and everything that goes along with these old fashion technology designs.
Removing the massive refueling necessities would be another benefit.
The only problem is no one desires to communicate with me, and I'm totally outside any space type program or project.
But non of this means I'm brain dead.
I'm just not in a position to have to get anything I know to change anything.
Excellent review. Thank you for the in depth engineering explanation of Concrete problems and the Water Deluge system.
Fun approach to the videos! Keep going!
This whole launchpad architecture with that idiot "stool" and fuel containers just sitting next to it is a perfect recipe for disaster imo. I I were the autorities, I would forbid going further along this track and allow only proved solutions like Russians or classic US launch systems. And those tankfarms are a big NONO too.
Maybe the Starships heat tiles could be used on top of the concrete also?
Great presentation. Have a subscribe, sir
I defs think they need a deluge system! Surely this is it…?
quality reporting judy
Water is compressible. If you force water under the flame pressurization, it could cause even more damage to the concrete. The answer is a 316 SS defusing spike about 6 inches thick and 4 meters past the base of the launch platform. As the flames push downwards, they push on a giant piece of metal with vertical fins that trap and divert the flames out from underneath the platform. because of the metal composition and thickness, the heat is also absorbed and channeled for the critical time necessary for the booster to clear the pad.
Great info. Very Interreserring. I Subscribe directly
The Marcus house showww hahaha lol, great vid tho
Just getting back around to watching about development at Starbase. Looked away during the FAA assessment period so I wouldn't wreck my blood pressure iykwim. Stumbled onto this video. This is an incredible amount of information and very well presented. Well understood by the presenter. Excellent job on all points. Thanks for being here.
Perhaps sugar or another treatment?
What if we use alcohol instead of water to create concrete. Tempura style.
You will NEVER see multiple launches from the same launch pad in a day.
That is some delusional garbage right there.
Should.. but for how many times? I would think a change out every time…one toasting will be all it will take to be safe and not blow holes in everything nearby with shrapnel with those additional roastings…a flame trench is not a nice to have but absolutely a must. The current setup will serve to get the rocket perfected. But a new launch tower and stand will be setting above a flame trench. A couple years away..This just might be the plan all along…They aren't stupid over there at Space X.
why cant they just put a large metal plate under launch mount ?
With a rocket as powerful as starship I don't think spaceX has a choice but to build a flame trench and a water deluge system. These aren't falcon 9 rockets and extra steps need to be taken to prevent the rocket from being damaged during take off.
Outstanding channel. Thank you so much for all the work.
I think you may be onto something Zack, regarding the tank at 39a being part of the deluge system.
While the concrete spalling is a serious concern, I'm more concerned with the acoustic shock waves reflected back into the rocket at start up, bouncing off the solid concrete pad and damaging the rocket's internal structure. This was a concern for the shuttle flying out of Vandenberg and a large reason why the shuttle never flow from there (tests and simulations showed that the acoustic shock would wrack the wing structure). The amount of water in the flame/sound suppression system seems pitifully low for SpaceX. Hopefully they did consider this and I pray it will work.
I love your approach to your work here. You have your very own style and it just works. I’m really excited to watch your channel grow.
Compression and thermal is not the problem. I think cavitation is the problem.
Thank you china for the camera
Ok, but I have yet to see this answered: Why cant they just put a few thick steel or titanium plates on top of the concrete in that area? Like 2"-3" inch thick.
What is the curing time for this particular concrete mix? And what about the rebars? What are they composed of? How pervious is it?
Here's the thing. Not only do Starships needs to go to Mars.. but return as well. I think that's why they have avoided water deluge and other complex systems because building them on Mars is no easy feat.
Your smart, that's why I'm listening. Staysame
Hi CSI very interesting idea for a water tank on that square patch of earth while WAI think its for another launch tower, Who will be right? 🤔
Young man, I really appreciate your research and obvious attention to detail. Thank you!
Concrete has 0 tensile strength
You're definitely right with the four tanks at 28:55, these will act as compression buffers. They are filled with ambient air and kept at the same pressure as the water, and when the valves shut, the water will then diverge into these tanks, compressing the air with the kinetic energy, dissipating the excess energy as heat while slowing the water movement continuously.
They're gonna need a water cooled steel plate over that concrete if they want multiple daily uses in a high humidity environment
I like the shorter videos because I have time for them.
Your estimate of temperature is incorrect. The data you speak of refers to static temperature which does not include the kinetic energy of the jet. What you need is the total or stagnation temperature which is what the concrete will face as the flow stagnates at the centre of the jet axis. Total temperatures will be much higher than the static temperature.
Excellent, well researched episode 👏
How did I just come across your channel? Where’ve ya been?! Great work