How NASA Tests Spacecraft Reentry

[@thethoughtemporium]

So jealous ya'll got to go on this tour. It looks amazing

[@JaredBrewerAerospace]

With your brain and complete thought process, due it would catch fire.I've been there. Anyone one section alone, is overwhelming. There are destructive dynamic mechanical test cells. Magnetohydrodynamic liquid "wind tunnels".... At the end, I was asked, "What did you think?" I said, "I think I need a nap."

[@rojka-_-]

Bro atleast you are american not like me who is Lithuanian. You are so privileged

[@hedgehog3180]

@@rojka-_- Hey we have ESA, CERN and ITER here in Europe, there's plenty of cool stuff for us to see.

[@factsarefactsanddonotlie8397]

is your second name Musk because boy do you look like him

[@ke9tv]

@@rojka-_- Justin's Canadian, isn't he?

[@LafayetteSystems]

Barnard Plasma Systems???

[@BPSspace]

🚨 REBRAND ALERT 🚨

[@The_landing_zone]

@@BPSspace lol hes good tho

[@TransitionQuest]

​@@BPSspaceDo you remember your camera looking at camera rocket may it can be saved (only assumption) if you make the camera above came out like the camera below then even if it came out entirely still it could be pushed back inside because of high speed air and rocket could be stabilized and face that camera downward and you could had still got camera looking at camera shot

[@foxthroat3410]

lmao 😂

[@brucebaxter6923]

@@BPSspace I was surprised that they weren’t using magneto hydro dynamic thrust to accelerate the plasma while heating it.

[@RealEngineering]

Dude this was on Monday. How did you make this video so quick? I haven't even unpacked yet

[@BPSspace]

I stole a bunch of Redbulls from the lounge 🤠

[@darklordlightgod9348]

lmao

[@consolomon]

Aww, I'm looking forward to your version of this tour! Just for protocol: this video is great, and I enjoy both of you)

[@jhe-p0t]

Woah! That's real engineering! 🔥

[@timokraus4882]

Scott Manley was even sooner, like always 🎉

[@brentwalker8596]

I was a human test subject at AMES in a study on exercise for the Mars mission. Got to meet one of the shuttle astronauts. It was a real honor to play a small part of the US space program. Great video!!!

[@vaporcobra]

were you ablative or refractory? 🤔🤔

[@ismzaxxon]

You were a heat shield ?

[@brentwalker8596]

@@ismzaxxon There are many areas of research at AMES. The test I was part of took place in Life Sciences. It was in the same building as space suit design and hydroponics. The test was featured in a late 1990's documentary by the Discovery Channel called "Destination Mars". I got my few minutes of fame.

[@brentwalker8596]

@@vaporcobra Ha ha ha. Considering my weight loss by the end of the test, I would have to categorize myself as ablative.

[@dylanshandley1246]

@@brentwalker8596being able to put “former human test subject” on a resume is wild 😂

[@NistenTahiraj]

The tangents are honestly my favourite thing about this channel now. Makes me not want to skip anything, and the videos are not often crazy long which is perfect

[@ArrKayCee]

9:02 This method is used often in F1, they apply a high-vis paint to areas they want to see the flow of air over, except they don't just do it in tunnels, they also do it on track. You can see it sometimes during practice but most often during pre-season testing.

[@supernova8986]

Am i the only one that wants joe to post like 2 hour long videos on his second channel that is him just going down all of his rabbit holes? Itd be like a podcast of someones unhinged science rambles and id love it

[@Lizlodude]

Make it a podcast but the video is just a flow chart showing how everything is connected XD That would be awesome

[@adrianpip2000]

ME TOOOO! The more rabbit holes, the better

[@danieldelazzer6417]

I'd totally watch that

[@PlexiumGames]

God that footage of the ablation is so cool looking.

[@Shure_Lock]

another SLAMMER! also, the obligatory "HELLO" in an echo chamber was absolutely necessary

[@JaccovanSchaik]

I'm disappointed Scott Manley didn't step up with his customary "Hullo! It's Scott Manley here." Quick thinking by Joe there.

[@Lizlodude]

I'm pretty sure the reason nobody said anything is that every one of them has done that at one point or another and feels the same way about it It's a requirement

[@benjaminrickdonaldson]

Tim, Joe and Scott are legendary.

[@biscuit715]

For anyone who wants to compare the plasma to other very hot things, 30000F is 17000K. For reference the core mantle boundary is up to 4500K, with the inner core being around 5000K. The surface of the sun is 6000K, though the core is 15 million, so we've got a way to go there.

[@stewartcarberry2483]

Thanks for the Kelvin reference.

[@oasntet]

"It's five digits" is basically enough. After a point, the units stop mattering much.

[@DrRusty5]

Nuclear Fusion... hold my beer 100 million K 🤯🤯

[@hedgehog3180]

I mean technically we already have the sun beaten with ITER, when it fires up it will be the hottest place in the universe and the magnets next to it will be cooled to near absolute zero meaning that the hottest place in the universe will be right next to one of the coldest places in the universe. Science is awesome.

[@carloslaue1236]

IDK why some people in the 21st century still measure things in barleycorns and feel hot scales. Move over to science units...

[@NickelC]

I really love the final shot out at the wing of your plane, because that wing very likely once had a model in the Ames wind tunnel

[@floggerfrog]

even though it is an airbus, airbus uses modified NACA airfoil so yeah, technically a model of that wing very likely was tested in the ames wind tunnel. cmiiw

[@JaredBrewerAerospace]

I was and still am a CFD engineer from my master's thesis until now and no CFD will never 100% replace real testing for everything. It does and has already replaced wind tunnels within F-1 because we have 10000x the number of real windtunnel tests compared to the number of simulations that are being done. The regime that those vehicle operate in are very restricted and through regulation they are not set to start operating another 100 mph faster anytime soon so because the operational domain is very refined and so very well studied experimentally it will be years before CFD catches up to account for all of the simulation backed phenomena just in the boundary layers alone.

[@BPSspace]

Hard agree - also this is strange to say but I remember seeing your HolliStar tests way back in 2015 when I was getting started in rocketry! Super cool stuff

[@Lizlodude]

I feel like it will continue to improve and reduce the number of early tests that are needed, but you really can't beat just actually doing the test in person when it comes down to it.

[@dmpyron2]

And at the same time AM is saying simulation doesn't correlate with reality.

[@Real28]

"Is it between 200 and 2000 per hour?" "You're... _way_ off" 😂😂

[@WindTunnelJon]

....I mean he's almost 1/4 of the way there ;-)

[@ersp1]

The labor costs alone...

[@hvip4]

​@@WindTunnelJonwould that be including the work of world class engineers such as yourself or you're running a ~40MW fan? 😮

[@WindTunnelJon]

@hvip4 our facility tops out around 170mw, but yes ;)

[@CaseyDoranWritesCode]

woah is that Tim Dodd the everyday astronaut

[@BPSspace]

That's actually Tom Didd the Bi-annual Scuba Diver!

[@chrisbrowning360]

No, it's a Supra.

[@somestarman892]

@@chrisbrowning360 “wipes glasses” Is that a Supra?!

[@robwoodring9437]

No, sir. This is a Wendy's........

[@johndoepker7126]

​@@BPSspacelol

[@PSwayBeats]

13:51 KZbin will never die as long as there is people teaching entertaining and everything else I don't see it ever going away

[@Na16Patman]

8:50 oh god PLEASE go on every single tangent, I LOVE your tangents

[@AstroCharlie]

What a cool video of the awesome stuff going on around Ames! NASA definitely deserves the recognition for the amazing technology work they do outside of the high-profile flagship programs.

[@Liam-abc]

I don’t get why they made this so complicated when they could’ve just made it out of blue tape and hot glue

[@heikos4264]

there's a bit of german ancestry in NACA/NASA, that's why 😅

[@thefantasyforge5015]

However complicated it may be, they still used paperclips.

[@JimOHalloran]

To quote Xyla Foxlin: "There's a reason hot glue rhymes with Mach Two."

[@gggggggggg-ms8lm]

Government agency

[@DerrickBommarito]

The slightly different focus on the details in the arc jet system, modelling the engine, and going into the wind tunnel tech at the facility was super cool. Can't wait to see others' videos for more details and I hope more videos like this get to happen in the future! Just the right amount of rabbit holes and the writing is great. And the video shots are entertaining. More waves at perfect optics plz!

[@NonEuclideanTacoCannon]

Lots of familiar faces in that crowd. Man, that footage from the arc jet is nuts.

[@Cooper_42]

Joe: “I test my heat-shield with a very hot blow torch“. NASA Ames: “Hold my beer”. No shade, Jon, but wow. I drive by that facility occasionally, and often wish I could get a glimpse inside. Thanks for taking us there.

[@wrightmf]

Arc Jet people say, "If you want to get into space, go to Marshall. If you want to get back to earth, come to Ames."

[@ScoutSniper3124]

Glad to see Hanger 1 going back together. As a high school student I trained at NASA Ames Research Center for machining and design. Later my first duty station in the U.S. Navy was VP-31 Staff in Hanger 1. Got to climb all over it, even opened the top hatch and sat on top of the hanger for a Blue Angels airshow. Good times. Once I put in a Request Chit to "Paint the hanger a light golden brown, so as to disguise it as a giant twinkie from the air". Oddly my request was summarily denied.

[@AngelCCD]

I found you because of Mark Rober. My dad worked in New Orleans for the Apollo rockets and then the External Fuel tank for many years each time. He is now 83. Thank you!

[@mikerat88]

9:35 thank you for putting potential embarrassment on the line and getting that audio clip for us!

[@avialexander]

Yes! It's so hard to be that person sometimes, but I guarantee you everyone except the tour guides (who've definitely already done it) really wanted to lol

[@WindTunnelJon]

We thought it was Scott Manley when we heard it. 🙃

[@mattmartinez3442]

omg Joey is going to take his milk carbonating to a whole new level with this technology!

[@nathanielthomson2860]

One of the fire channels I watch every single video on without skipping a second. Incredible content, great visuals, impeccable explanations. Honestly I would watch you down every rabbit hole you could imagine because the information your provide is invaluable

[@TheEyetrip7]

Well, just came across this channel and I have a applaud you guys! The advanced take on home rockets are nothing short of astonishing. Very well done on the vid!

[@dpwoodman]

Thanks

[@DTRedmond]

Been waiting for this drop since Scott Manley's video a few days ago. Excited to see your perspective and how it pertains to your space shot.

[@aerilous9348]

It was an honor to partake in NASA's NCAS program at Ames Research Center earlier this year and it was honestly really exciting to revisit what I saw in-person through this video!

[@macTijn]

Hey Joe, Thank you for making these videos. As someone who is not really in a situation that allows me to do what you do with rockets, I think it's awesome to see you grow step by step, and to learn what you have learned. You're a great communicator, and I can only imagine what the future will bring.

[@BreakingTaps]

🤩🤩🤩 So damn cool! Looking forward to your plasma experiments too!

[@rylanpeepee]

Why is this comment buried so deep in the comment section.

[@RiffZifnab]

If BreakingTaps didn't get to go after that great shuttle combustion chamber video that's some real BS. Ah well, NASA can't get everything right, unless it really matters.

[@Zach-sn7gt]

9:30 I recently had work experience at Rolls Royce and i image it to being similar to what its like in a test bed. Though I didn't get to go in test bed 80 (Largest indoor test bed in the world) the test bed I went in was surprisingly large.

[@Braeden123698745]

Thank you for letting us tag along in our own way. These are the kinds of videos that would have gotten me interested in STEM as a kid, and keeps my love of learning going as an adult.

[@TexanMiror2]

That was super cool, like the entire thing, but especially from 4:33 onwards. Absolute "science-fiction in reality" vibe. Thank you!

[@shyne2643]

Honestly i have a hard time beliving you managed to increase you video production rate so much, and i'm really greatful for every high quality video you make, thank you so much!

[@ianmastin]

I've been a longtime viewer, and I want to thank you for the amazing content. It's been a true pleasure watching you puzzle everything out, and I can't wait to see where this journey leads... perhaps to the stars?

[@4ntig3n]

Thank you Joe. What you've built and achieved with this youtube channel is a true inspiration.

[@SkyDomeVIZE]

It is crazy how much you have learned about aerospace in the years watching your channel. I have studied, and worked on airplanes, rockets, avionics systems, piloted, and I'm certified. I feel you mastered Astronautical engineering way more did I ever did, very inspiring. Definitely recommend getting your degree trust me. You don't want to be another Chuck Yeager.

[@technikschaf1574]

Thanks for keep feding my brain with awesome science, beautiful pictures, ideas to think about, problems to dig in, food to make plans about what to do if there is more time again, ideas for little projects, reminding me again and again why I love science and creating stuff

[@neo16769]

I got to do some research project at AMES about 10 years ago. Really wish I could have toured around all the facilities like you did. Those wind tunnels are massive up close.

[@AlistairMcConnaughey]

Legit you need to make a down-the-rabbit-hole channel to talk about all the different tangents. You've got so many people geeking out about this

[@TheBadBull]

My plane did a flyaround before landing at SFO on my way to open sauce, and I saw this huge cool facility out my window. I knew from the shape of the buildings this was something special so I snapped a pic. Watching this vid I suddenly remembered the picture and sure enough, that's Ames! These sorts of facilities are among the coolest places on the planet, thank you so much for sharing your tour with us!

[@johnno4127]

I'm glad YT suggested this after Scott's video. Well presented and it was nice to hear a different perspective.

[@CyanTiger]

I absolutely love this video. Having multiple YT folks talking about different parts of the same topic gives so much more insight. Everybody seems to take different views on the same topic. Thanks for sharing!

[@mhansl]

Joel, your channel is special. That humble thank you is icing on a rocket fuel cake. Keep it up, man. We are all in.

[@icannotfly]

4:33 that is one of the coolest spooling-up sounds i have ever heard

[@curtisszymczyk1339]

Thank YOU for making such fascinating videos and I enjoy your great attitude and gratitude. Wishing you much good luck on your future endeavors.

[@Hotcubcar]

I'm so glad you decided to share this. It feels like something I'd never have been able to see on my own.

[@paulurban2]

I live just up the road from Ames and it is so interesting to finally see some of the science and engineering that goes on inside.

[@mrhollio2]

This was GREAT!!! In watching Formula 1, I know they fluid dynamics and wind tunnel testing during development but you mentioned the "oil" option which sounds like the flow-vis paint they spray on the cars (along with aero-rakes) to do live on-track airflow testing. Thanks for sharing your trip!

[@cademckee7276]

Oil paint seems really similar to flowviz paint which is used loads for race car development still both in wind tunnels and full scale real world testing. Also you mentioned how you can test these things two ways with either object moving fast or the wind but normally it’s easier to just move the wind. Well there is a couple cases of race teams buying long railroad tunnels and climate controlling them and turning them into the first style of testing tunnels because it’s even more accurate than a traditional wind tunnel

[@mardak2871]

the oil flow (or equivalent) is used in formula one racing cars. You usually can see it on the practice "one" (and mostly in the beginning of the season) . They apply it to the edges of the car and after one or two lap they bring the car in the garage and look at the flow of the air.

[@flying0graysons]

Thank YOU for your videos like this and all of them. I'm not educated enough to do the things you do, but it fascinates me. I've been watching for what feels like years, and I truly value the work you do on them.

[@Hagop64]

I recognize Tim Dodd and Scott Manley, not sure about some of the others. Do you have a full list of YT creators you went with?

[@madmonkey7183]

Phwoaar. Someone turned an old Skool Mac into a robot. So awesome! Thanks for sharing this with us Joe. I'm loving the extra side tracks !

[@paulbernabejr]

Thank you for persisting and sharing your hopes and dreams with all of us. I am living vicariously thru your videos. I had hoped i would work at JPL someday but life happens. May God bless your efforts and your space spot be an amazing success.

[@iscuit]

I will always be rooting for this project from Sweden! Good luck, seriously amazing stuff

[@benjaminshropshire2900]

It should be mandatory when you get a bunch of KZbinrs together for something like this that, at some point, you all stand in a circle and film each other filming each other.

[@Mj323_bb]

Excellent video !!! ... Your progress as a creator / explainer / maker over the past recent years / months has been a pleasure to watch / experience. Keep up the great work, and feel free to yell down research tunnels every time it feels like the right thing to do.

[@studio_buehler]

You're such a good science communicator! A couple of years ago, I knew absolutely nothing about rockets. Now, I nod in agreement when you talk about foldable heat shields and ablating materials. What a journey! Thank you! (edit for typos)

[@grumpygreg7505]

Awesome. Thank you for sharing. As to your thoughts on KZbin - as long as creators such as yourself are documenting things they do and are excited/passionate about there will be an audience such as myself who will Watch, Learn, & Enjoy. Blessings & glad you got to do both OpenSauce and this trip in particular.

[@willtheelectrician8184]

Dude, I've been watching this channel since you were in Nashville, you're killing it! It's crazy to me that this channel doesn't have >1Million subs yet!

[@dxhacksaw]

thanks for making videos they are a pleasure to watch, its nice watching videos of people who have real passion in things

[@jabadabadu7089]

At 7:20 looks like cake topping melt. And this is how atmosphere burns material off when reentry occurs. I didn't really understand the ablative shielding until now. Very interesting.

[@speedboard.]

Thank you for making amazing content and for pushing the boundaries of your own technical knowledge and capabilities. Also, there is no rabbit hole too deep for us. Post more tangent videos.

[@hairy8184]

Thanks for bringing us along Joe!

[@darrendemis7878]

14:12 thank you Joe. I'm certain you are inspiring more young people to be interested in aerospace engineering and related fields. Keep up the great work.

[@sethgibbons80]

Dude this is amazing! 5:20

[@Srelon.]

We will never get bored of your content Joe! Keep up the good work!

[@AlexSchendel]

Joe Barnard, Tim Dodd, Scott Manley, Tibees, and more! What an awesome group of people!

[@KegRocket]

One heck of a tidbit, thanks for sharing! And also that kegular cameo at the end 😎

[@mavrodontis]

Mind-blowing experience, I felt like I was there, thank you for this "different" video, made as usual with passion!!!

[@dsgermack]

What a great video companion to your previous work and to Scott's! Really loved this episode and appreciate all the hard work to make this "non-standard" video and your taking your time away from the space shot to do this!

[@T_Mo271]

Nice look inside Ames. Fascinating work happens there with a long history.

[@michaelclark9319]

This is what I'm here for! Excellent STEM content and a damn good watch! Thanks, dude!

[@chibs3666]

Originally became a fan because of the trying to land a model rocket series, but now I'm just here for the ride. Loving all the videos you're putting out 💪

[@ReneSchickbauer]

9:48 that module layout looks very much like the module system used in Apollo hardware.

[@zubrkabbi]

I had goosebumps from the images of nasa facilities. Thank you!

[@marcmarc172]

This is, by far, the best ablative video I've ever seen. Amazing for my mental model!

[@jezmy2006]

I don't think we will ever get bored with the videos you do, Joe. Keep 'em coming!!! 🙂

[@leaguen6701]

Glad to see this on the main channel. This is a really cool topic.

[@markusflosbach1852]

THX for making content that ist right at the top of my daily evening dose of space news. Together with Tim and Scott. Top notch "Entertainment".

[@embeddedtom]

I used to work near Ames, in a building under one of the landing patterns. Fell in love with NASA's ER-2 jets. I used to call up the High Altitude Branch (I think I'm recalling that correctly?) on Mondays, and ask if there were any ER-2 flights scheduled for the week. If there were, they'd tell me which day(s), and departure & return times. I'd drive over to the airfield to take pictures of takeoffs, then later go up on the roof of our building and take photos of landings. Beautiful aircraft. The director offered me a chance to visit and take photos up close, but never got the around to doing it.

[@quietlyworking]

You are such a joy to watch. Thank you for sharing your journeys with me. :)

[@Wayofthelamb4life]

Cool video. A nice change of pace. Although I have been enjoying your other videos even if they are way over my head.

[@CourtneyBest]

My father worked at AMES, he never told me the top speed. Amazing footage, you earned a follow..

[@calaphos]

I used to work in the aerospace/cfd area and got tours at a wind tunnel a few times. It was significantly smaller, but still the local electric utility had to be called before starting the thing due to its gigantic power consumption. Nowadays the Compute Cluster for CFD at the location actually surpassed the wind tunnel in (annual) power consumption. Theres also a lot of interplay between CFD simulations and wind tunnel experiments, e.g. CFD code is usually validated from wind tunnel experiments and wind tunnel experiment data needs to be corrected for wall effects, sometimes using CFD results.

[@lemixhd9864]

You area amazing Joe, I love all of your videos, you deserve all because the hard work you put in your projects

[@Skukkix23]

hey. I am not a patreon supporter, just a long time lurker. I got a little teary in the eyes at the end, just wanted to say it's been a pleasure to watch you living the dream. Wish you the best future possible. Stay wicked

[@SimonButler]

I definitely found this video interesting, thank you for making it!

[@1967AJB]

I enjoyed that, thank you, like being back at work 30 years ago at the Royal Aerospace Establishment Farnborough.

[@marklr5716]

I'm sorry Joe... at 5:30 when it cuts to you with your blowtorch after witnessing the Arcjet I actually actually lol'd

[@Groovewonder2]

5:20 good GODS I wish I could see that melty technicolor chaos head-on. I want it as a Wallpaper Engine background. Same goes for the meteorite. It just looks trippy as hell.

[@ChristianThomas-wf5dl]

What a truly interesting place. Like a big toyland with lots of gadgets to play with. FYI, you can calculate the cost, not including wages and benefits, by finding out the size of the electric motor and by calculation you should be able to get the kWh used. Be sure to fi d out if the local utility has a demand charge for kW demand and/or time of use rates.

[@treynamy]

Amazon Joe! Nice, love the content as usual! I appreciate you!

[@ProsperityAvenues]

4:09 is that the guy from TKOR???

[@AndrewZonenberg]

Re your cost estimate, this complex is nowhere near a "normal" wind tunnel that you'd use for testing small-scale fin samples at subsonic to low supersonic (vs hypersonic) velocities. You're actually in the ballpark for a subsonic wind tunnel, for example the Kristen Wind Tunnel at UW Aeronautics & Astronautics lists a published rate of $860/hr for tunnel occupancy (including actual operation as well as setup/teardown) and a total cost including consumables, tunnel time, and other fees of $42K for a hypothetical aircraft testing scenario.

[@robbewillaert6970]

Oil testing is actually still used alot with f1 cars. Due to the regulations they have limited windtunnel time so during testing they add "flow viz paint" to the car to see how the air flows around while driving.