EP: 1 - Starship Flight 3
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- čas přidán 14. 06. 2024
- In this episode Tim answers some of your questions about Starship Flight 3.
If you want your questions answered, just use hashtag #spacewalkpodcast and we’ll take questions from there each episode, but we’ll also be taking questions from our patron supporters, CZcams members and X subscribers as well as a thank you
You can find Spacewalk anywhere you listen to podcasts as well as right here on this channel!
Spotify - open.spotify.com/show/1aqImRn...
Apple Podcasts - podcasts.apple.com/us/podcast...
RSS Feed - feeds.simplecast.com/kRpHBue5
#spacewalkpodcast
Want to support what I do? Consider becoming a Patreon supporter for access to exclusive livestreams, our discord channel! - / everydayastronaut
FIRST SPACEWALK EPISODE WOOOOOOOOOOOO
I remember when Neil Armstrong was in a Gemini capsule and a thruster locked open causing his spacecraft to tumble. He manually corrected this and was able to safely reenter from orbit. On Starship, there must be more thrusters to prevent a reoccurrence.❤
As far as I remember the controls were not reacting, and he activated the return/reentry program and the vehicle stabilized itself, but they were spinning so fast and it take his awareness to be able to think in this situation.
Another thing Starship has going for it in terms of surviving re-entry with missing tiles: Since it's so large, with few sharp corners, the plasma field has a farther separation from the vehicle than compared to the Shuttle, or a capsule like Dragon/Apollo/Orion.
This was very interesting. Looking forward to more episodes! 👍
Topic: How the scale of Starship feels to be walking under or near it. How the size of Starship's habitable interior size will compare to other space vehicles, including the ISS, Skylab, and other planned space stations.
“chance on the fly….” WILL be next level! 😮😂
There are a great many extremely brilliant, talented, clever, highly motivated people at SpaceX. I have zero doubt that they already know exactly what they are going to do with regard to attitude control in the next test flight. These are, after all, tests. They’re testing to see what works best…what is the simplest, most effective, lowest mass solution in every part of the vehicle. The overriding principle is does it work and does it work effectively enough? Is it long-term, consistently reliable? These are the critical factors that apply. The next iteration of Starship that flies will feature the ideal answer to all of these questions…no doubt in my mind.
Bro, I could listen to podcasts about Starship for-literal-ever. Please more!!
Good talk Tim 👍I like the casual conversational format.
I am so happy you are doing this! I have been trying to find a true podcast like this one for a very long time! Thank you Tim for teaching me more about space! Before your channel I did not think spacw was an option, now I am looking at schools based on it.
AWESOME!!!!!!
Subscribed. No hesitation. Thanks Tim.
Wow! I’m honored! Episode 01 and my question was first one answered! Love the format and your stuff. Really appreciate you!
Cool, new podcast - having seen probably all of your vids, some 3-5 times I'm sharing this
This first episode was great! I’m really excited for the next one. 👊🏼
Excellent Tim, please keep it up
The first chop-stick catch. That's a big milestone in my opinion.
Can't wait for the next episode! Here's a question:
#spacewalkpodcast Do you think Robert Truax's Sea Dragon concept could exist today? If so, how often do you think it would launch?
I think this was a great first episode. Thanks Tim
I enjoyed listening to spacewalk. Super excited for the next launch!
this is awesome Tim - love the format!
Good start Tim, looking forward to the next one!
The flip manoeuvre is one milestone we still have yet to see performed flawlessly. From space.. now thats another level.
This is great to listen to while working. Thanks. I'd like to learn more about how you create your music, and also the end-game of producing methane on mars to get the ships back home.
Space - walk- sit! Strong start my man 😊
Interesting about PIDs and grid fin control. PID controllers typically operate things like furnaces in manufacturing. They learn how to control a process by experience and create an output that eventually doesn't overshoot or undershoot your target. Not like a thermostat for example that uses a range differential.
A wonderful first episode
great episode 1 Tim, look forward to the second .
Good to hear you again in podcast form!
this is awesome, been following you for years. Love the content
Thank you for doing this! Always great to hear your thoughts
Loved the first episode, thanks Tim.
New favorite podcast
#spacewalkpodcast How do you think Vulcan will fare once Starship and even New Glenn become operational? Even with SMART reuse, do you think it will last in such a competitively priced launch market?
Thanks Tim! This was great
Very happy you have a podcast now. Have you put it on Google podcasts or CZcams music? I've searched for it there and can't fine it.
LFG!!! Love this! Tim thank you for being so public with everything.
Let's GOOO!!!
You absolutely CAN do quality AND quantity. Your passion rings through with everything you do! Way to hit the ground running! ...uhm...flying? ...uhm... layovering!! I appreciate you just taking a few moments for US - cool format!
Super excited for these podcasts, Tim! Really looking forward to more episodes. It's nice to have something I can just throw on in the background to listen to while I'm busy with something. Being that it's little effort compared to your regular content, it seems like it'll be more regular, which is great! Always love getting more content from you.
Heck yeah tim!!!!
Thanks, aTim!
Can't wait until there is a large playlist of these! :) Thanks Tim! :)
Woot! 🙌🏼
Thanks tim!
I really enjoy listening to your mind farts, nice first episode!
🔥🔥🔥
It's so cool to listen to Tim talking about Space stuff!
Great job! I like this idea :D
This is perfect for when I need to be doing stuff with my headphones on ... or working ... I don't need to be watching graphics ... Background educational content is always welcome.
Love it!
This is really cool.
Great job!
I'm oh very late. Somehow I'm subscribed but have missed 5 episodes already!
Cheers for the extra content!
Edit: I probably shouldnt post this early as i'm only 6 minutes in, but I thought the point of the hot gas thrusters was to hijack the autogenous pressurization system and bleed exhaust from the preburners to be used as reaction gas.
I assume that the autogenous system would use fuel heavy exhaust from the methane turbine to pressurize the methane tanks and oxygen heavy exhaust from the oxygen turbine to pressurize the oxygen tanks.
So I assume there is ullage vents for both the oxygen heavy and the methane heavy lines because you wouldnt want to combine them due to fire or explosion hazard..
However, as thrusters you might in fact want to combine them at a predetermined ratio and burn them as they exit as actual vernier thrusters, obviously the current crude ullage vents arent suitable as rocket nozles but perhaps a future booster design will basically turn the ullage vents into draco engines or something.
Intro music was great! Thanks for all the awesome content and enthusiasm, Tim.
Great episode, Tim ... Test 3 was SOO satisfying ... until it wasn't :-)
Add the Podcast on Google Podcasts Tim 🙏
Awesome as usual Tim, keep up the good work fella
Keep it going!!!! I love the more casual tangents!
Love it
Venting the tanks for maneuvers is a bad idea, first the specific impulse would be low(and that matters because you need to lift that into LEO so isn't free), like 30 seconds for sixth bar(yes cold gas thrusters have 100 seconds typically but also 100 bars or more of pressure),and second the liquid oxygen wouldn't be settled, so a blobs can be sucked and destroy the nozzles by hammer effect, also would be unpredictable, you can shut the thrusters for one second and when eject only gases you get a force, and when spew liquids more, obviously because the liquid is denser.
Hope u cover ur favorite Apollo mission!
Hello @Everyday Astronaut.... Have a good trip home.
Hey Tim and all you fellow space nerds! Does anyone know if on Liquide fuelled rockets, do they fill up the tanks to max on every flight or do they fill the tanks to the load weigh/ obital height requirements? If they fill to max on lighter loads, what is done to the extra fuel?
Also, are there any safty concerns to not fueling to max?
Really enjoyed it🙌🙌. Maybe switch to video also soon?
a great idea! nice episode thank you for the interesting content
Brilliant first episode 👏, question... What do u think of the refuelling plan for starship? Is ot to much & needs to b done in a better way?
#spacewalkpodcast
Do you think we're going to see nuclear rocket propulsion be used sometime in the near future and if so when-ish do you think that will be?
🚀✨Tim, What SpaceX heavy booster will launch more times in 2024: Falcon Heavy, or Starship's Superheavy?
Curious to hear your thoughts on launch cadence of each. The other day Gwynne Shottwell hinted at early-May as timeframe for IFT4, with 6-9 more this year.
What craft will SpaceX recover first: Starship, or Superheavy booster? Your thoughts and insights as to which and why would be interesting.
My thinking is recovering booster first is more advantageous. Similar to F9 now. For Starship, the reentry flight profile for recovering from orbit to landing at Starbase presents some challenges. (at lease on early attempt with approach over land) So wondering where will the first Starship landing will occur? (droneship and Edwards AFB are a couple options that come to mind)
#spacewalkpodcast
BTW: Congrats on new channel, and first episode.
Regarding IFT3: A few times Starship was able to stop the roll completely. It appeared what was causing the roll was unstoppable venting, or thruster. A possible leak (Raptor plumbing, thruster stuck, etc). That the roll was stopped gives me confidence that thrusters are capable of providing thrust. Again, curious to hear your thoughts?
#spacewalkpodcast
#spacewalkpodcast Real nice to hear from Tim btw got a question for you why did starship move towards a more title based heat-shield design cause the old sweaty heat shield design was smart I guess ,I mean tiles aren't really very reusable and wasn't the older sweaty thing much more reusable - My first guess was that its really complex to get small holes on a giant vehicle like the starship and there would be higher risk of blockage.......?
Because it’s easier, lighter, and probably works better. That concept was never a real design, it was Musk spouting ideas.
And the tiles are reusable. If they can get them to stick they can last many flights.
they could do a tiny pressurefed methane oxygen engine for RCS
I love you TIMMMMMMMMM 🎉🎉🎉🎉🎉🎉🎉🎉
More mass I know, but what about those orientation flywheels that satellites have, could spin them up with that boil off gas, and at one end of ship to maximise the turning force from the ship centre of mass
wup wup, ⭐️⭐️⭐️⭐️⭐️
To put it simply, hot gas thrusters are mini rockets. And since they burn the same fuel the raptors burn, they can completely remove the need for a Nitrogen tank and liquid nitrogen. Instead being replaced by the methalox tanks that are already installed on both ships.
This is a brand new system. I have no clue if it has been used before but I can't seem to find any rocket that has used hot gas thrusters before. Which makes sense since there really wasn't a need for it before Starship. So this is actually a new technology that hasn't been tested much before (how strange of SpaceX to do that.)
How often are we getting this? also, we need some episodes dealing with space history
I've seen several comments on X debating the degree of control authority of the grid fins during the transonic regime, postulating that they lie within the shock cone produced by the "flamey end" and are therefore in a region of extremely low air pressure which leaves them with little to act against. I'd be most interested in your thoughts on this idea.
Looking forward to plenty more podcasts. =)
Perhaps we will see an entry burn to scrub some of the excess speed as is done with Falcon 9.
@@ianbird4737 It'll be coming in at 27000+kph, so to scrub off any significant percentage of that speed, would waste an insane amount of fuel. Bringing that much extra fuel would reduce paylod to orbit down to like nothing, maybe negative even idk. I can't see that happening.
Nice
Review of "Surely you're joking Mr Feynman". Has some good conceptual lessons on safety engineering - and some sobering reality of fear of speaking up.
64th comment!
A full stack of comments!
Nice :)
Starship looked tail heavy during the reentry. Too much fuel moved during the propellant transfer? I noticed that the aft flaps really didn't move much during reentry.
Can you do the podcast on video? I'm a visual person and I like to see the person speaking. Great job 👍
I think bro said he literally records this while walking/ driving so that might be challenging lol
@@jaykparikh37Also, in some settings there could be other people in the camera frame.
Matching the timeline leading up to Apollo SpaceX is still in the Project Gemini stage
Sorry Project Mercury
Shall we remind Tim that those cold gas thrusters were Tim's idea 😅?
And a question for the next episode: For Dear Moon, do you think it would expedite the timeline if, instead of the passengers launching on Starship, they are instead launched on two Dragon/Falcon 9's and ferried to a Starship that's waiting in orbit? Space X now has two operational crew capable launch pads, a handful of Dragon capsules, and they could be reconfigured to carry 6 people each.
Question for the next podcast: No need to disclose how much was invested, but did you pull out of Astra before they lost 95% of their value? Do you have any thoughts as to why they fell so hard?
👍
Can we have camera on CZcams? Even if it isn't the crispiest don't worry Tim! Plus for us not native speakers its better for understanding when we see the lips moving.
Perhaps you could turn on the Closed Captions.
Quick Question: Could the sloshing within the massive tanks cause a shift in weight causing the ship to tumble? Ultimately sloshing the fuel more, causing a feedback loop?
#spacewalkpodcast What do you think about Booster 10 landing more like 80-90 km downrange instead of 31 km? Boostback burn underperformed?
Tim, did you see the footage from Mexico? Were you jelly? Did it make you consider getting one tracking camera further inland to get away from marine layer stuff?
There is a cure for sloshing and fuel-flow interruptions that are causing failures to relight the engines on Starship and booster. SpaceX hasn't implemented it yet to prevent the failures.
Why was Starship tumbling before re-entry attempt ? 🚀
why aren't they belly flop the boster? seems that a lot less fuel will be needed to land it.
Hi Tim, I have a question : if there is boiloff of the LOX and CH4 in the tank in space, how are they going to stabilize them all the way to Mars?
Realistically Starship is never going to Mars. The design is fine for LEO, but the mass penalty of steel starts to really add up the further you go.
It would make far more sense to use Starship to build an interplanetary spacecraft.
My understanding was that Starship was designed from the ground up to send cargo and people to Mars, including the choice of steel because of the cost as they plan to build thousands of starships. Do you think there is something wrong with their design?@@TheOwenMajor
@@TheOwenMajorthey will refuel in orbit just like when they go to the moon. Starship was really started from the outset to go to Mars. They would not go this deep without thinking ahead. Steel actually probably has a ton of benefits when it comes to thermal loads when aero braking on mars.
I am not an expert but space is quite cold so with insulation I'm sure they can solve for boiloff. From what we see though, the launch mount is incredibly complicated and massively heavy, so I forsee then sending one way starships to Mars for a long time. At least when they figure out refueling and launch back to earth they will have a LOT of spare hardware laying around lol.
@@luccampeau3347 In my view the Mars angle is mostly for marketing. Starship is really intended to support a large scale satellite constellations, where the ability put up a lot of mass to Leo will be needed.
The design is way too heavy to realistically be interplanetary, and I have my doubts about the Moon. Like mentioned the boil off means ship cannot wait in orbit for any meaningful amount of time.
w
Is there a tourism company that a person can book a live launch viewing
Is it possible to record video for the CZcams upload?
Do you get personal updates cause you will be flying on it or are you as in the dark as us?
3rd
Mmmmmnot entirely true. The hot gas thrusters have to be pressurized somehow. There will be an extra tank for the thrusters, cold or hot.