The Space Shuttle Iceberg Explained

by



Shuttle.

0:00 – Introduction
2:42 – Level 1 (General Public)
6:13 – Level 2 (Slight Interest)
18:09 – Level 3 (Average Space Nerd)
35:51 – Level 4 (Payload Specialist)
49:38 – Level 5 (Stand-up Re-entry)
57:54 – Level 6 (STS-9999)
1:01:40 – Level 7 (Wayne Hale)

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30 thoughts on “The Space Shuttle Iceberg Explained”

  1. (Note: I posted this comment earlier with a link to the article but it got caught in the spam filter.) 1:05:50 "Gravity gradient" refers to the sections of a spacecraft that are closer to earth having a very slightly higher gravitational pull from the earth. This can twist out of position a spacecraft trying to dock with another, especially if the docking procedure takes longer than normal for whatever reason. The article titled "Taking a Risk to Avoid Risk" by John McManamen on NASA's website gives a good explanation of the phenomenon. Searching for the title plus the author should put it as the first result.

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  4. Earth's gravity profile is not uniformly distributed. There are sections deep beneath the crust that contain wildly different mixtures of "rock" and "metals". Hence there will be slight differences in the 'pull" on objects in orbit. A thing to consider when modelling de-orbiting/destruction maneuvers. The Pacific ocean of instance provides a significantly different distribution profile. Neutron stars are probably the only objects with nearly perfectly uniform distribution — moments before they collapse into a black hole.
    As an interesting side-note: Look up the core mass distribution of Uranus & Neptune. They are both way off axis & their magnetic fields are even more bonkers in alignment. Uranus is totally lopsided & what makes it so peculiar is how this alignment seemingly gives zero fucks about its rotational axis.

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  7. How would they bail out before impact with the surface in case a two out blue happened since the shuttles didn't have ejection seats , did they have parachutes, or something else?

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  10. Great video!
    At 20:31 you forgot to mention that if the engine delayed the shutdown a bunch of seconds later, a TAL abort would have been required, in that case they would have landed in Zaragoza Air Force Base in Spain, I've always wondered how safe the TAL abort was.

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  15. Great video. Lot of stuff I didn't know. Here's a few more lesser known facts:

    1. Columbia never went to the ISS. Being the first orbiter, it was too heavy even after removing the ejection seats.
    2. The ISS orbits at an inclination of 51.6 degrees, which was chosen to benefit the Russians, as their launch pads are further north.
    3. Greg Jarvis wasn't supposed to fly on 51-L (Challenger). He was bumped off of previous missions by two joy-riding US Congressmen. Utah Senator Jake Garn bumped him off of 51D and he was reassigned to 61-C. Congressman (and later NASA administrator) Bill Nelson bumped him off that flight so Jarvis was assigned to 51-L.
    4. Senator Garn was practically incapacitated during his flight due to extreme space sickness. It was so bad that astronauts later started using a "Garn Scale" to measure degrees of sickness, with "1 Garn" being the worst.

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  22. Just a important FYI for your viewers I am sure you yourself all ready know but failed to mention.

    The Shuttle originally had a escape system but it was decided to ditch it and add more crew.

    Also NASA frequently hired outside engineering firms for specific shuttle problems.

    My dad worked on many of the ones NASA didnt seem to be able to be fixed …

    The glue on the tiles was very problematic.. I handled many of these tiles.

    The main engines had vibration problems as LOX isn't a good lubricant for high pressure engine turbine bearings.

    I looked at detailed diagrams of the solid rocket motors construction and the O Rings.

    Just about guaranteed to have a problem they were so poorly designed.

    Great video none the less

    Thanks for doing it.

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  24. Very nicely done! As someone with an actual AE degree and who has been reading about this stuff for a while, there's lots from Level 3 and deeper that was completely new. Just goes to show how much there is to learn. New sub 🙂

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  26. Nice! I was totally gripped right to the end. I am deeply impressed and a little envious of your knowledge of the STS. I think I knew about half of each of the first four levels. Well done. Great video. I can't believe I ever thought it might be too long. It was the perfect length. ❤

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  29. this really was the most USSR space program the US ever had…

    how did they not have a contingency for damaged heat shield tiles? like a remote controlled hull crawler or tethered RCS drone to assess damage and foam out holes or something.
    also why wasn't the cockpit a lifeboat?

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  30. Minor correction: Vandenberg is not a NASA site, but a US Space Force site.

    While Delta was the primary customer in the shuttle days, SpaceX is now by far the most frequent launch provider at Vandenberg.

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