Timestamps: 00:00 - Intro 03:10 - Re-Entry Criteria 05:30 - Crew Dragon Re-Entry Timeline 12:35 - Hardware Overview 25:10 - Orbital Mechanics Rundown 29:30 - Summary

@solecrusher7043

3 жыл бұрын

Legend

@peterwmdavis

3 жыл бұрын

It’s in the video description but okay...

@xtojump

3 жыл бұрын

@@peterwmdavis yep it totally is but I'm watching on mobile like the majority of viewers and description timestamps don't work on mobile 😉

@hennemmc5021

3 жыл бұрын

@@xtojump they do? What are you watching on

@peterwmdavis

3 жыл бұрын

Patrick Mac Cann - Communication visuelle, web-design et photo It works perfectly well for me using KZread app on mobile. You can always click to see the description

When he said he'd make a video for today I thought just a 7 minute explanation not a 30 MINUTE BREAKDOWN!!!! I LOVE YOU TIM

@vanillaswirl87

3 жыл бұрын

It's Tim 😂 go big or go home.

@lydiavidyasagar9207

3 жыл бұрын

@@vanillaswirl87 you're not wrong

@handsanitizermk.268

3 жыл бұрын

Honestly, what did you expect? It's Tim. 30 min is the shrotest he can do

@thedyingtitan1247

3 жыл бұрын

It’s tim he doesn’t do short

@edwinjohnson8488

3 жыл бұрын

I didn't realize that the video was about 30 minutes long till I read your comment.

I know how much stress you are in Tim, you are practically doing a triathlon (forget marathon. Tim is definitely doing much more than that, for a longer period of time) between the live streams, launches, static fires, OLD and the execution of this video. well done Tim! thanks for all of your hard work!

@joeyknight8272

3 жыл бұрын

Stress my dude is a killer

@bimblinghill

3 жыл бұрын

@@joeyknight8272 Stress is a funny thing though, it's not just about how much you are doing. I think Tim's at the top of his game right now and it probably feels pretty invigorating. He's probably pretty exhausted though. Before long he will need to treat himself to a nice holiday or the pressure of sustaining this output will turn into stress and become a problem.

@willierants5880

3 жыл бұрын

I'm just surprised he wasn't in one of those boats loitering around the landing site. LOL

@barakathiongo4835

3 жыл бұрын

Where's this man's Patreon??

@drakep271

3 жыл бұрын

@@barakathiongo4835 linked in the description :)

"Bob & Doug", sounds like a burger space corp.

@Xerxes2528

3 жыл бұрын

Lmao 🤣

@GEnghis559

3 жыл бұрын

It does

@vanillaswirl87

3 жыл бұрын

They should name the food place near starship Bob & Doug.

@goose32373

3 жыл бұрын

There's a pretty hilarious movie from the 80s called Strange Brew . It's main characters are named Bob and Doug. Every time I hear their names I think of that move lol.

@88888888tiago

3 жыл бұрын

@@goose32373 That's it. I remember now. I knew this name combination wasn't strange to me.

3:57 Tim, 25 dBz refers to the intensity of the reflection in the Doppler radar. It's a logarithmic scale that represents the volume of precipitation per volume of air.

@budmeister

3 жыл бұрын

Not Dragon Ball Z Episode 25?

@satyris410

3 жыл бұрын

@@ilyaholt8607 it logs rhythm with a volume scale on his radar

@IDoNotLikeHandlesOnYT

3 жыл бұрын

I was pretty sure he knew that but was just wondering what the "z" refers to. Anybody know?

@tippyc2

3 жыл бұрын

@@IDoNotLikeHandlesOnYT It really just distinguishes this use of "dB" against other uses of "dB".

@satyris410

3 жыл бұрын

@@rogerwalker8764 can't tell if this is legit or broscience

I live in Pensacola and we're pretty excited that they'll be splashing down on our side of the state and in our "backyard" ❤

@tgn2502

3 жыл бұрын

Wow! Im super exited for you guys, have a good one!

@jaka7418

3 жыл бұрын

I can already tell this comment will get a crap ton of likes

@armchairrocketscientist4934

3 жыл бұрын

Yeah, I lived in Pensacola for a year as a Latter-day Saint missionary. Y'all have some beautiful beaches, especially over towards Navarre.

@FallSkyX

3 жыл бұрын

Lucky

@armchairrocketscientist4934

3 жыл бұрын

@@middletnpyro I thought it was closer to Foley. Hm. Cool anyway that it's in the neighborhood. I went to Mobile a couple times too.

I deeply appreciate the technical depth of your videos. I am a science geek and I am starved for this information. Thank you so much.

@Gouravthappa

3 жыл бұрын

same here

@spacethink5491

3 жыл бұрын

Yeah.. the amount of research he is doing for all these vedios are fantastic

@aaravp6586

2 жыл бұрын

Same

I like how your globe changes depending on what you are talking about When you talked about the mars rovers it was mars And now its earth :)

@ar_tc

3 жыл бұрын

Morten Vajhøj srsly? I never notice xD

@sovietmuffin501

3 жыл бұрын

It’s a great little Easter egg

@robsadler5605

3 жыл бұрын

It's called a Mova Globe and they're pretty awesome :)

@jackdaw1905

3 жыл бұрын

It even faces with the landing site to the camera

@Formula1st

3 жыл бұрын

They spin, it looks really cool

I have been watching your vids for 2 years you have helped me through a lot

@eoincampbell5046

3 жыл бұрын

Omg

I've always loved the "simplicity" of slightly-off-center capsule reentry, where the vehicle remains naturally stable and only roll control is available, yet that roll control has a surprising amount of authority by pointing the lift vector anywhere around the full 360. Thinking about reaching a precise splashdown point, though, I'm curious just how much capability they have to affect cross-range and track-length.

@UNSCPILOT

3 жыл бұрын

Knowing SpaceX it's probably pretty good, I expect the Parachutes present the most accuracy error, simply by there nature

@kindlin

3 жыл бұрын

Here's the actually tricky part, you can't just let it 'go forward', there will always be lift (which is 'lift' in that it imparts a force perpendicular to the drag) due to the off-center nature of the center of mass. So if you were actually on point, you'd have to do some weird little loop to swoop back to your current trajectory. They must have a default orbital trajectory including incidental lift and then make small adjustments to that profile as conditions require.

I can really recommend the Scott Manley video Tim referred to at the beginning.

@mytube001

3 жыл бұрын

I suspect that the overlap between Tim's viewers and Scott's viewers is massive! :)

@johnevans6399

3 жыл бұрын

Thanks Scott.

@stonefish98

3 жыл бұрын

So much that you can't link it?

@jenniferreyes2865

3 жыл бұрын

@@stonefish98 Not in a youtube comment

I like one of the funny ksp loading screen messages where it says, “Calling orbital mechanic” 😂

Dude hopefully im earlier enough for you to see my comment, i just wanted to say i love your videos!!!! Thank you so much man!!!! 🌎🔥❤

@frogsecretaryofswamp452

3 жыл бұрын

Well he does see your comment

This video helped answered and explained my questions involved with all the orbital mechanics. Thanks Tim !

You got it up before the reentry. With only 5 hours to spare

I have just found my new favourite You Tube channel, you are a star! I thought, THOUGHT, that I was quite knowledgeable but after spending the entire day over here in the UK watching back to back Tim Dodd videos I realised that I actually knew very little. You are an excellent, amusing and very informative educator Tim. I never, ever watch videos that are longer than about three minutes, until today that was, I've not even used the time stamps once. Superb.

Based on the wikipedia article "dBZ (meteorology)" 25dBZ equates to 1.3mm/h of rain.

I was honestly surprised when I learned that they're de-orbiting using the tiny Draco RCS thrusters, instead of the huge Super-Draco motors. Especially since now that they're splashing down, the only thing they have the Super-Draco's doing is abort contingencies. That said, I do appreciate your explanation on the "why" of that answer - it makes sense!

@spinningsquare1325

3 жыл бұрын

They totally should use super Draco for splash down/ landing softening like on soyuz

@FerralVideo

3 жыл бұрын

@nuff sed In fairness, the way they designed the system both the RCS Draco and the massive SuperDraco use the same fuel reserve. So I gotta commend them for that. But still the weight of the engines themselves counts - although it ALSO counts in the competing designs which also use large abort motors that are carried into orbit. So they went from "really cool idea" to "just like everyone else", which is still a bit of a shame.

Tim, this was excellent--could be used as an intro at the college level. An ideal mix of science, engineering and enthusiasm!

truly astonishing and comprehensive description, well done, and thanks to your patreon supporters too!

So glad you added the small triangle thing next to the timeline, it makes it so much easier to follow

How to get down from orbit: throw a dice... ...check for dice roll after landing under the seat because of the nessesarity for gravity and being stationary to complete. Then proceed with disregarding the result.

is that their names dragon riders i wanna be called a dragon rider

@robsadler5605

3 жыл бұрын

Dragon riding astronauts or Dragonauts!

@robsadler5605

3 жыл бұрын

@Yai Garcia but being a dragon rider sounds so awesome!

@ilotitto

3 жыл бұрын

Dragon rider is Donkey from Shrek

@crugleberryandfriends4740

3 жыл бұрын

The capsule was ORIGINALLY called Dragon Rider

@robsadler5605

3 жыл бұрын

@@crugleberryandfriends4740 I didn't know that. Thanks for the nugget of info.

Hey Tim, great job as always, also saw your live stream of the DM2 landing. Well done!

Great video, Tim! You answered the questions I had about Dragon 2’s thrusters. Thanks!

Love rockets, almost as much as i love this channel

@zidani.s6712

3 жыл бұрын

Same

@followthegrow108

3 жыл бұрын

Same. I LOVE ROCKETS! USA 🇺🇸

@grunt6799

3 жыл бұрын

Awww 🥰

Point retrograde, fire engines, open parachutes at 3000 and there you go xD

@leriku2270

3 жыл бұрын

i see your a man of culture as well

@avap0n459

3 жыл бұрын

@@leriku2270 indeed I am

@blackhawks81H

3 жыл бұрын

@@avap0n459 The space capsule equivalent of "pulling at the mastheads"... Nice.

@ryanedwards4636

3 жыл бұрын

That was right and wrong

@shauryaajitsingh6157

3 жыл бұрын

Don't forget to eva in the air

I missed this in my sub feed, glad you mentioned it in the splashdown stream!

Can’t get enough of Tim’s space-explanation videos. Love it! Go on !

1. Click Retrograde 2. Press Z 3. Press Spacebar 4. Wait

@kyleking3839

3 жыл бұрын

But why aren't you thrusters already on??

@karanguyen7569

3 жыл бұрын

Great job getting this out on time!

LOVE your Channel thanks for this amazing content.

You definately deserve more views on this video. This is an awesome explanation of something that people don't really think about, and my opinion is that you've done an awesome job. I really love these kinds of videos.

1:06 that amazing shot Tim on the left, falcon 9 with crew dragon making history in the middle. and a Tesla on the right. one picture carrying some great stuff

Don't forget Tremor, the space dinosaur ;) Seriously though, praying Bob and Doug get back down to earth, and home to their families, safely and happily!!!!

I live in portugal, and as of about an hour ago the crew dragon passed over me, i actually got just a frame of crew dragon during THE DAY using my nikon p1000

@thomas127

3 жыл бұрын

Wow that's cool! I would love to see that picture (you could post it to reddit ;-)

@lukanys5308

3 жыл бұрын

I would love to see that picture

@kerbal_madness

3 жыл бұрын

Ill maybe post it on r/spacex

@thomas127

3 жыл бұрын

@@kerbal_madness do that! You'll get my upvote! :)

@kerbal_madness

3 жыл бұрын

Thanks!

Thank you I was having trouble landing my Capsule on my backyard pool.Appreciate the help!

This channel has been an awesome find for a space nut like me. I love how you break down all the concepts in a simple, easy to understand way. Big up?

Oh boi,my man is safe.

@spacethink5491

3 жыл бұрын

🥰

First time here Tim and I need to say that I loved your video. You have a new subscriber. Great Job!

Great job Tim!! Very informative and really makes the de-orbit process easier to understand.

It thought this was an old live stream based off of the thumbnail, I didn't realise it was a video till I checked twitter

"Dragonriders" ... I like that! You should @ Elon, asking him to make a custom patch for all astronauts who will ride on Crew Dragon, a patch that proudly declare "Dragonriders"...

Thanks for the return to making videos again Tim!!

So much info in your video I can't wrap my head around it.. Thank you for all your work

Aliens in UFOs are watching this an chuckling to themselves: "Ah, nothing like watching Newbies."

Why don't they catch Dragon with a ship like Ms.Tree or Ms.Chief?

@pmj_studio4065

3 жыл бұрын

Maybe the ship can't move fast enough to be at the right spot in the right time (that still can't catch fairings every time, and Dragon would have to land at most a few meters from the center to not make the ship roll), maybe the vertical speed is too high and Dragon would break the net, maybe it would be just too much work to certificate this... idk

Although i knew all the orbital mechanics watching your and scott Manley's video over the past 1 and 1/2 year ,i still watched this video till end because space is fun and watching the same thing over and over isn't boring.thanks for this video

Well done Tim. Great video! I'm primed for the splashdown now.

first (=

@youreasimp1468

3 жыл бұрын

GAY

Thank you Tim, loved every bit of it. I had a few questions which were answered beautifully. However I'd love to have Scott's videos linked here, going to manually search for them now.

Love the new studio Tim! Video’s awesome too :D can’t wait for SN5 hop

Nice work as always Tim.

Excellent tim thought it would be a short video great job

Great program Tim, perfectly explaining everything relating to Re-entry. I feel as if I am now a semi-expert. Great work and thanks. Hope you can do many, many more such programs. Cheers, Brian

I just wanna say that I love aviation and your channel got me into space as well

Great informative content in a very accessible format. Keep up the good work. Love your channel!

I learned alot from your video. Especially regarding orbital mechanics. Thank you and enjoy the slash down.

Awsome explanation Tim, love your content

Awesome video as always Tim 👍🏻

Your videos are next level, such high quality & incredibly informative! Thanks 👏👏👏👏

Looking back at this is wild...you will know Exactly what this feels like Tim. Awesome.

Thank u for the video!!! I was wondering why the time it takes to land can vary so much and why they arent landing using the super dracos instead of splashing down- so this video really helped answer the questions I had about it -Can’t wait for the stream later

My first job at Douglas MSSD involved re-entry dynamics and orbital mechanics. The math was really challenging, and very fun.

Love your work Tim! My favorite channel btw

Great video Tim, very informative.

Ive always wondered how this works, nice presentation!!

Really cool vid buddy! love it!

This video is awesome, great work Tim!

While I had most of that process in my head, you definitely put it together! Thanks Tim :)

Thanks for the awesome information! As always your videos are high quality content!!!

Great work, enjoying every minute. You are one of my examples as a prof tuber too!

When I thought it couldn't get more exciting, Tim as always made it a hundred times more exciting!! Love attention to details✨

Tim, you have become a must need for any inexperienced scientific person who loved space travel! Thanks !!

When the scrubbed SN5 hop attempts have almost 10x the views of this super cool video :( I mean, I'm super exited for the SN5 hop, but this video is pure gold of work !

Another really great video, Tim! The only thing I'd like to have seen more of was how exactly the phasing burns affect the orbit, but I also get that it's a bit more detail than the scope of this video. Maybe an idea for its own video, or as part of one about interesting orbital mechanics.

Well done sir! Great new video.

thanks for all the information, makes things much easier to understand

Way to break it down. Very cool video! Strong work.

Maybe your best video yet. Thanks Tim!

One of your best videos to date! Great info there.

I have seen every single one of your videos from the start Love from Greece!

Thanks for this awesome video Tim!!!

Very informative! Keep up the good work!

Released just in time, you guys are ambitious!

As always, great video Tim.

Very well made video, my compliments! Thank you for all your efforts in popularising Space science. Regards,

Good video Tim. I learned a lot!

Another great one Tim. Thanks!

This is brilliant guys! So realistic. Look forward to seeing more

Super awesome informative video. You're the best.

Excellent production and subject matter thank you

I love your videos, as your passion for space flight is revealed throughout. Excellent research and educational presentation.

Awesome explanation. Thanks

Wow! awesome video, exactly what I wanted to now. Tim you rock!

Outstanding breakdown 👏 answers to many of my questions

Thanks for the video Tim, everytime I learn something from them

These videos are getting ever more professional; all that work on the new studio has paid off.

Totally astonishing! Loving your work, thanks for the explanations you do a great job👍

As always, a super-informative video!

Really enjoy your videos, please keep making them!