Why SpaceX ditched lightweight Carbon Composites for Stainless Steel to make a sweaty Starship

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  • 29/01/2019 को प्रकाशित
  • SpaceX’s upcoming rocket called Starship Super Heavy formerly known as BFR, will no longer be made out of lightweight Carbon Composites, it’ll sweat a lot, and just MIGHT need a TON of WD-40.
    So we’ll take a look at all of Elon’s most recent claims about stainless steel actually being the best option and see if we come to the same conclusion.
    We’ll also take a look at some other rockets that are made of stainless steel and explain how SpaceX's use of this material is a little different as they’ll be using new manufacturing techniques and doing things that have never been attempted before.
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    This video in article version - everydayastronaut.com/stainle...
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टिप्पणियाँ • 4 224

  • AsuraDandy
    AsuraDandy 2 साल पहले +1

    Elon Musk is literally making those classic old 60's esque space ships into reality.

  • Rafael Padilha
    Rafael Padilha 3 साल पहले +506

    Steel has a much much longer life as a frame, it's very well known and there are many effective inspection and repair methods. That makes a safer and more predictable frame. A reusable vehicle should be easy to inspect and to repair after each trip.

  • Virtual Willis
    Virtual Willis 2 साल पहले +1

    I really hope the final ship is polished to a mirror finish.

  • LTC Games Division
    LTC Games Division 2 साल पहले +618

    People on the 60’: Starships will look like this.

  • Christopher Brummet
    Christopher Brummet साल पहले +10

    Rewatching this 2 and a half years later, after Tim's excellent 3 part interview with Elon at Starbase, August 2021...so much has changed, but not the core mission and it shows in all the right ways.

  • Jeriku
    Jeriku साल पहले +2

    Hey Tim! I'm wondering as we're heading to the first almost-orbital launch of a Starship combo. Is the sweating stuff still planned? And do we know if they will use the refregerative cooling for this test (sn20) or later and just stick to the tiles for this first try?

  • D_ Mat
    D_ Mat 3 साल पहले +538

    My favorite ironic thing about choosing stainless-steel nickel alloy is that most intact meteorites are made of iron & nickel. It's like the cosmos has been telling us what to use to get through our atmosphere this whole time!

  • RelentlessHomesteading
    RelentlessHomesteading 3 साल पहले +18

    Sweaty metal -- reminds me of the Polaris missile nozzle. My father in law was a rocket engineer on that project and showed me a nozzle he came up with which used a sintered first metal (titanium?) filled with a second metal (?don't remember what metal). The nozzle cooled itself by sweating off this second metal as it went providing sufficient cooling for its entire burn duration. He was also involved with rockets on some of the space missions. My Dad worked on projects for the Air Force, and was back at the Cape control room for a few of the Apollo launches . He brought back lots of cool materials for me -- I was really in love with this stuff. PS -- I ended up designing electronics - not as sexy - but it was more economically stable - LOL.

  • dps140
    dps140 3 साल पहले +5

    Ok, so first of all, you're awesome. I discovered your channel yesterday and I love it.

  • Siggi Matos
    Siggi Matos 3 साल पहले +4

    Hi, Tim.

  • Jesus Lucas
    Jesus Lucas 2 साल पहले +1

    Thanks Tim for your awesome job, you not just bringing the space to us, but bringing knowledge and a completely new perspective of what space challenge is today. Well done mate!!

  • Joseph Watson
    Joseph Watson 3 साल पहले +2

    I instinctively knew or inferred some of the reasons why SpaceX moved from carbon composite construction to stainless steel, but you made it all crystal clear. Thank you for this presentation. You did a fine job.

  • TomK2602
    TomK2602 3 साल पहले +1

    If people ask: "What are space programs good for?"

  • Gregory Norris
    Gregory Norris 2 साल पहले +2

    Just discovered this channel recently and thought I'd check out some older vids. I think one the things people tend to get hung up on with Stainless Steel is they don't understand that it's really a blanket term. For example 300 series Stainless has a lot more precious metals in it, tends to be softer than regular steel (which is good for machining but bad but overall strength), and is extremely rust resistant. 400 series stainless is more like regular steel, it's cheaper/has fewer precious metals, it's almost as hard as regular steel, and it will still rust almost as easily as regular steel (which is the part that really pisses me off since a lot of companies advertise 400 series as stainless, which is technically is, but then the product rust). Of course things like the thickness of the steel, how it's formed (cold formed as stated in the vid gives stronger properties), and it's shape can all have huge effects on the properties of the finished product.

  • Grey Buckleton
    Grey Buckleton साल पहले +1

    Its called a "weeping wing" on the DA42 light twin. And it lets small aircraft finally gain anti ice capability at a low cost. Normally light aircraft pilots had not ice protection at all. So it seems to be a very functional very affordable plan.

  • Jim Swenson
    Jim Swenson 3 साल पहले +7

    I'm glad to hear of a rentry shield method distinctly different than space-shuttle tiles.

  • Michael Steele
    Michael Steele 3 साल पहले +1

    Hey, a really nice video about stainless steel rockets! Thanks! I'm glad you didn't divert too much into the challenges of epoxies and whatnot in carbon fiber, too. :) I suspect that nanotech construction techniques--which probably won't be developed for at least a decade--could re-write the carbon story, but let's not go there lol

  • Byron Crowell
    Byron Crowell 3 साल पहले

    Dude, you are amazing. The research and production value on these videos is just off the charts. INclips should give you stock in the company. Many, many thanks. I watch these with my son and they inspire.

  • iowafarmboy
    iowafarmboy 3 साल पहले +373

    As an engineer, I love the change! You got it right in that whenever you can change to something readability available today, and ridiculously cheaper, go for it! And ya, engineering is all about compromise. I do feel that the payload won't be affected much.

  • Personal Coach
    Personal Coach 3 साल पहले

    Great work thanks. Roughly one out of three space shuttles ended up with a catastrophic failure. What do you think will be the catastrophic failure rate on the private space flights? Would enjoy your opinion on that. Thank you.