Sorry it’s been so long since my last video. But I’m back now!

It would be nice to see you talk about some of the proposed SLS launch versions, like Block IA (Advanced Boosters with ICPS), Block 0 (no 2nd stage), Block III (5-engine core) and the Dynetics LRB SLS.

My favourite fact about the block IB SLS is that it has Saturn heritage. The Saturn I S-IV second stage was 5.5m in diameter. Over the years 5.5m tanks have been suggested for both Shuttle Boosters and the Ares-I second stage. The EUS oxygen tank is 5.5m in diameter. The block system is a really clever way to get around some of the limitations of govt-funded development. In such a thing, peak funding is the limiting factor. By spreading the peak funding between multiple waves, you can get bigger and more powerful rockets at the cost of time

Note: one of the reasons the RS-25E is better is because it's gimbaling range is lowered, meaning it has less weight.

loved this video, I'm glad to see people showing more love for sls

Very good explanations! Keep up the good work!

As always, I love your content, hate the loud background music 🥲 But thanks for posting, always a treat!

I'm so hyped for the launch!

Great video David!

great work David!

Can’t wait for the launch! Gonna be epic.

Thank you for this an amazing video!!!

SLS Launch HYPE!!!

Good video! Although when showing numbers (3:26, 7:33, ) it would be good to slash height and thrust units in metrics, as some viewers can not be familiar with the imperial system of units. I also want to say that it is really nice to have you! You explain well the reasons why NASA will upgrade the rocket and everything behind the SLS. Oftentimes, I find that NASA communication doesn't explain very well the technical reasons behind the changes. Q: I didn't knew that the OMS stackover of the Shuttle will run out by Artemis 6. Given it is used on the ESM, will it be replaces by another motor or will a industrial develops a new Service Module? I guess NASA still wait for more Artemis mission before making a choice?

Big Orange Rocket goes brrrrr

Wow, that was fast, thanks so much!

Artemis 1 was a success and now we are going back to the Moon to stay 👍🚀

For me the 10m fairing option on SLS Block 2 is probably among the most exciting things about SLS. Imagine what kind of telescope we could fold up in there. The JWST needed to fit in Arianne 5 with a 4.57m diameter space inside the fairing, it folded out into a 6.5m primary mirror. The Luvoir A concept would fold a 15.1m mirror into a 8m fairing. What kind of monster could we pack into a 10m fairing? 18m? 20m?

LETS GOOOO SLS

Can‘t wait to see the Block 2! It is the most powerful rocket in NASA history!🥳

I can definitely see the block 1B launching, since congress loves the idea of a lunar space station, and the 1B can carry a crew and a piece of the station.

Boeing has also been looking at producing carbon composite EUS tanks, which would reduce the weight of the stage significantly and would increase the SLS's lift capacity to be in the ballpark of Constellation's Ares V.

SLS Block 1 cargo looks absolutely cursed

very nice explanation! btw, what's the bgm? sounds so cute and fun haha

W

Fun fact the roll out will be on my 14th birthday :D

I heard that there's a chance NASA will use two upper stages for Block 2, one which is the EUS we all know about and other which is way more powerful but less propellant efficient Great video btw

rad

David Willis, I think you have to edit the description of the video because there are no Music names and no Credits (i really would like to know what is the name of this music from the beginning of the video)

It’d be nice to see Block 2 take Dynetics Alpaca to the Moon ( Angry Astronaut asked the guys if it’d fit… they think so👍🏻🤘🏻🚀

Thanks for the cool video! Impressive technology, however sad to see it mostly wasted on that questionable Lunar Gateway project.

I may not like the politics involved, but gosh I'm so excited for Artemis I!

Can’t we get to 10 million lbs thrust at launch?

Block 2 is inevitable, you cant run away from it no matter how much you questioned it, it will always come ;P EDIT: Bout block 2, isnt it supposed to have RS-25F eventually?

How far along is “why is sls not reusable part 2” at?

We ride to the moon in a firy Typhon. On solide fule and wire. Turn the Key and light the fire we leaving earth to day.

So its finally launched on november 16 2022

Anybody got a link or name and creator for the name of the first music used in the video?

Has anyone actually figured out how the new ULT is supposed to work yet? Better delay that block 1B launch until we throw 10 years and 20 billion dollars at it.

Will the B1B maiden flight be crewed, or is it a test flight type mission?

What happened to sls block 1 cargo?

Can we really say that Block2 has no heritage to the shuttle? Seems like a stretch to fit into a narrative. Thoughts?

Jolkosun

SLS launched already

How many ICPS exist?

Some of the information in here is not quite correct. The SRBs and RS-25s aren't "tHe ExAcT sAmE" for example. Space shuttle at liftoff was 7 million pounds of thrust. You don't get 1.8 million extra pounds of thrust from just adding one RS-25. Second, the block 1 has different sub-configurations as do the others. Those configurations are certainly more similar than they are different, but there are major differences internally.

Then It goes even further beyond and becomes reusable like Vulcan

It almost seems like it would have been cheaper and quicker to just put all the original Space Shuttle hardware in a museum and skip straight to the block 2 I guess that’s just not possible with politicians in charge tho

Try to disappeared all I T app this lsland

The SLS has not been around the Block yet

Wait when SLS 1B will be flying i will be out of school. Fu- ..

The EUS is the most underrated aspect of the SLS Program IMO, there may not even be a need for a Block 2 with that thing around. NASA should try to make it refuelable in orbit, maybe add those new RS-25E's to it to swap out the RL10's and then have a monstrous amount of delta-v and C=3 available for outer solar system or interstellar payloads. Maybe they can even stretch the EUS for that purpose for even more performance and launch it on Super Heavy instead of SLS therefore saving all the development money/effort on a new Block 2 and instead maximizing the ROI on EUS, and allowing them to make more EUS' per year to launch more stuff. I swear I'm more of a fan of the EUS than the SLS at this point, I mean when was the last time NASA had a dedicated hydrolox upper stage that could be this versatile and have this much potential, not since SIV-B and even that was 6m while EUS can have a 8-9m fairing, go EUS!

I think NASA wont build the block 2 because it is too expensive. The block 1 is already a diet for the wallet

Hope NASAs Mars vehicle will be reusable.

SLS is DOA

Well done. This was a good explanation. It seems unlikely that SLS block 2 is actually going to fly. The cost per a launch is massive, and by the time would be flying at the earliest, it is highly likely that SpaceX's Starship will be flying, and even without that Blue Origin's New Glenn will also be flying, and although NG won't have the same lift capability as SLS, the sheer cost difference would by itself make a massive difference. I'll be surprised if block 2 flies.

Im not exactly sure if we'd see block 2, Id expect for the commercial industry to take over in launch services by that time, which would free up quite alot of cash for NASA

NASA's SLS Rocket is about to finally Launch ............................................. Um.......................Nope.

SLS is too big to fail... If it fails tomorrow the whole Artemis program could be finished.

NASA is going to have a difficult time funding this beyond Artemis III. Private company's are going to win in the long run.

Too expensive to get in the 30s a rocket that barely surpass the Saturn V. This rocket can't compete with the upcoming Chinese rockets and using hydrogen from the first stage makes little sense. For the. time and the amount of money that it toke it had been better to create a new first stage and use the Delta IV less expensive rocker engines for the second stage (with an extension) and get a 90t to lunar orbit. The other option was to take into account the years NASA has on space assembly and use multiple launches to create a modular system for the Moon program.

I want this to succeed, but I'm having doubts. I don't think NASA would be able to recover financially if this goes wrong. If this fails, we can say goodbye to NASA. Thank the smoothbrains in congress for not giving them an acceptable budget.

very bold of anyone to assume sls will fly past the mid 2030s. i hope we will see it fly for decades, but i don't think it will be competitive enough. once other rockets such as starship or new glenn have been proven reliable, there will sadly be no point in keeping sls around

Lbs of thrust ? bro ut talking about science please use the metric system dont be like that ... if you were doing a video on real estate in the usa okay no problem but really ? here dude?

Block2 will never fly It will have beenlong surpassed by Starship