Why Did A Rocket With A Secret Payload *Implode* on the Pad?

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  • čas přidán 1. 06. 2024
  • Sure, I cover exploding rockets all the time, but much rarer are the cases where rockets did the opposite. Some Rockets designs rely on gas pressure to support their tanks, and when leaks happen the tanks implode and collapse. These are called 'Balloon Tanks' and they enable much thinner, lighter tanks to be used, improving the performance of the rocket at the expense of making them harder to handle on the ground.
    The Atlas Rocket used Balloon tanks up until 2005, and the centaur upper stage still uses them.
  • Věda a technologie

Komentáře • 1K

  • @scottmanley
    @scottmanley  Před 4 lety +179

    NASA has posted video of the SLS tank buckling:
    twitter.com/JimBridenstine/status/1204163744814772224?s=20

    • @msudawg1997
      @msudawg1997 Před 4 lety +14

      Just FYI, the time delay between the buckle and the rupture was about 11 minutes

    • @steveshoemaker6347
      @steveshoemaker6347 Před 4 lety +4

      As always...Thanks very much...!

    • @thethirdman225
      @thethirdman225 Před 4 lety +1

      Cardboard’s out... That really unzipped pretty quickly but I couldn’t tell where it failed first. Great result though.

    • @msudawg1997
      @msudawg1997 Před 4 lety +10

      @@thethirdman225 the buckle happened maybe a 18-24 inches below the white square. it resulted in enough of a crack that we could hear the nitrogen leaking out. Eleven minutes later the crack propogated both up and down from that middle point and ripped the front wide open.

    • @thethirdman225
      @thethirdman225 Před 4 lety

      Mike Nichols Great. Thanks for the info. I’ll have another look at it.

  • @lancer525
    @lancer525 Před 4 lety +521

    "Rockets are filled with explody stuff" Most scientifically-technical assessment I have ever heard. Well done you.

    • @parabolicfinancenews9887
      @parabolicfinancenews9887 Před 4 lety +2

      You guys know there's a difference between implode and explode right

    • @bobski8203
      @bobski8203 Před 4 lety +5

      Actually, I also love his accent and how it perfectly fits his enthusiasm.

    • @iroulis
      @iroulis Před 4 lety +2

      @@bobski8203 Aye cap'n. How quaint.

    • @fungoose2195
      @fungoose2195 Před 7 měsíci

      ​@@parabolicfinancenews9887and you understand why thats not a relevent distinction here.

  • @Queldonus
    @Queldonus Před 4 lety +388

    “Rockets are full of explody stuff.” -Scott Manley, December 2019

    • @Roboprogs
      @Roboprogs Před 4 lety +3

      I want you to put a lot of energy in a small space.
      .... safely. No problem, right?

    • @andrewc1036
      @andrewc1036 Před 4 lety +6

      Splody is the correct term

    • @johnmorgan1629
      @johnmorgan1629 Před 4 lety +2

      Or how to get more bang for your buck.

    • @colinantink9094
      @colinantink9094 Před 4 lety +4

      Well.....he’s not wrong.....

    • @louielouiepks
      @louielouiepks Před 3 lety

      If i were you, I'd send that word to Webster's for entry in next printing of dictionary.

  • @davidkueny2444
    @davidkueny2444 Před 4 lety +505

    "Explosion fatigue" sounds like the limiting factor on an Orion pusher plate's lifetime.

    • @Xeno056
      @Xeno056 Před 4 lety +3

      lel

    • @DreadX10
      @DreadX10 Před 4 lety +5

      A materials creepy death.

    • @glenmcgillivray4707
      @glenmcgillivray4707 Před 4 lety +17

      Gotta be careful of thermal cycling, keep your cyclists at a constant temperature!
      And microfractures ruining your day, keep your fractures on the macro scale! Otherwise it makes the error of your weight (and thus mass) measures complicated.

    • @davidkueny2444
      @davidkueny2444 Před 4 lety +6

      @@glenmcgillivray4707 methinks that the only advantage a macrofracture has over a microfracture is that you can see the former and decide not to use the engine.

    • @Psycorde
      @Psycorde Před 4 lety +3

      Mr. Torgue would be appalled if he heard this phrase uttered by someone

  • @HydraulicPressChannel
    @HydraulicPressChannel Před 4 lety +258

    Those nasa boys have pretty nice hydraulic press :D

    • @FailTorrent
      @FailTorrent Před 4 lety +10

      I want to see them put an SLS sized Swedish-English dictionary in it.

    • @jimsvideos7201
      @jimsvideos7201 Před 4 lety +12

      Imagine finding you two here 😀

    • @msudawg1997
      @msudawg1997 Před 4 lety +5

      Yeah, we're pretty proud of our hydraulic cylinders..... ;-)

    • @tehbonehead
      @tehbonehead Před 4 lety +5

      Yes. Quite imPRESSive.

    • @mikethareaper1789
      @mikethareaper1789 Před 4 lety

      Holy shit

  • @Allan_aka_RocKITEman
    @Allan_aka_RocKITEman Před 4 lety +441

    *_"If this WORKS, it is going to be COOL!"_*
    *_"If this DOES NOT WORK, it is going to be REALLY COOL!!"_*
    😄😄😄😄

    • @burtlangoustine1
      @burtlangoustine1 Před 4 lety +14

      Caps, italics, emboldened, punctuated and with emoji's too.
      Explain

    • @Allan_aka_RocKITEman
      @Allan_aka_RocKITEman Před 4 lety +9

      @@burtlangoustine1 >>> No, I did NOT use the word _"Explain"_ in my post.
      :~)°

    • @awesomemcawesomeshorts9531
      @awesomemcawesomeshorts9531 Před 4 lety +6

      KSP in a nutshell

    • @BennyLlama39
      @BennyLlama39 Před 4 lety +1

      @ Don't forget the Mythbusters. 😀

    • @brandon3883
      @brandon3883 Před 4 lety +1

      Well, if the failure is due to a fuel leak, there's a very good chance that it will be literally and extremely "cool" until the fuel explodes...

  • @jarno_de_wit
    @jarno_de_wit Před 4 lety +25

    That's some incredible staging happening at 8:48. A sattelite pulling away from an accelerating upper stage, while leaving no visible exhaust.

  • @rdfox76
    @rdfox76 Před 4 lety +7

    Trivia note: Werner von Braun was less than thrilled with the thought of using balloon tanks on any rocket, but particularly a man-rated one. He finally was persuaded to stop fighting the desire to use them when the Atlas program manager invited him to come down to the factory with a sledgehammer and try to put it through the side of a pressurized Atlas missile--apparently, both NASA and the Air Force put the kibosh on that idea right quick (more out of the worry von Braun would injure himself than anything else), but it got the point across.

    • @cogoid
      @cogoid Před 4 lety +4

      Good story -- though some details seem to have been slightly different. It was not von Braun himself, but Willie Mrazek, von Braun’s Structural Section Chief. And he *did* get hit when the hammer bounced off.
      von Braun's mistrust for Atlas had to do with more than just its structural design -- despite program's eventual success, there were numerous problems early on. The details of the story can be found in this "NASA history series" report: "Taming liquid hydrogen : the Centaur upper stage rocket, 1958-2002" / Virginia P. Dawson, Mark D. Bowles. p. cm. (NASA-SP-2004-4230)
      On pages 38-39 you will find the following:
      _To quell Mrazek’s doubts, Bossart invited him to take a sledge hammer and give the tank a whack. Failing to put even the slightest dent in the tank, he tried again, this time giving the side of the tank a glancing blow that caused the sledge hammer to fly out of his hand, knocking his glasses off, but again leaving the surface unscathed. Although this test may have proved the strength of the balloon structure, it did nothing to endear General Dynamics to Mrazek or win the von Braun group’s faith in the ability of Centaur to lift an expensive spacecraft into space._

  • @olivialambert4124
    @olivialambert4124 Před 4 lety +14

    Interestingly using pressure for structure is used everywhere, in the most unexpected of places. For instance coke cans use the liquid inside to remain strong, if was only due to their strength alone they wouldn't be able to support anywhere near enough weight when they're stacked and would require a huge increase to aluminium used. Pressure and a thin walled container really is one of the most efficient ways to make a device strong.

  • @spaced-cadet
    @spaced-cadet Před 4 lety +135

    When you’re pretty sure you’re basically riding a controlled explosion, but the rocket implodes.

  • @jwilder47
    @jwilder47 Před 4 lety +125

    You could call this series "When NASA went more Kerbal."

  • @charlie15627
    @charlie15627 Před 4 lety +138

    Shirt idea:
    “FLY SAFE”
    With an exploding or collapsing rocket behind it.

    • @gildedbear5355
      @gildedbear5355 Před 4 lety +27

      "FLY SAFE" with an exploding rocket behind it and a capsule escaping with a Launch Escape System

    • @scorinth
      @scorinth Před 4 lety +7

      @@gildedbear5355 I will buy this.

    • @Nick205150
      @Nick205150 Před 4 lety +3

      Fly safe with a rocket inside a condom

    • @mk6315
      @mk6315 Před 4 lety +9

      Fly safe with a rocket stuck nose first in the dirt

    • @fruitella196
      @fruitella196 Před 4 lety +3

      Mitchell Kelly pointy side up

  • @AbbreviatedReviews
    @AbbreviatedReviews Před 4 lety +139

    6:13 I've always hated when my rocket goes limp.

    • @kimmer6
      @kimmer6 Před 4 lety +10

      Hmmm, the Heat Seeking Moisture Missile.

    • @stainlesssteelfox1
      @stainlesssteelfox1 Před 4 lety +25

      It happens with older rockets. It's a more common problem than most people realise.

    • @pentagramprime1585
      @pentagramprime1585 Před 4 lety +10

      Doesn't happen with this older rocket. I do yoga.

    • @gibbo9089
      @gibbo9089 Před 4 lety +7

      perhaps they should add liquid Viagra to the mix.

    • @kimmer6
      @kimmer6 Před 4 lety +4

      @@pentagramprime1585 I use a Popsicle stick and electrical tape to keep me flying safe.

  • @fim-43redeye31
    @fim-43redeye31 Před 2 lety +4

    Seeing that the SLS tank withstood *260% load* for *five hours* makes me feel pretty good. That's waaaay beyond anything they'd normally see - hell, if you could get that kind of reliability on every part I'd almost be convinced to scrap the launch escape system.
    Almost.

    • @HalNordmann
      @HalNordmann Před 2 lety

      These margins are common for aerospace technology. And they are quite often necessary.

  • @vovacat1797
    @vovacat1797 Před 4 lety +20

    Implosion... An amazing word my language has no direct translation for, only for "explosion", and then you have to explain "implosion" with a couple of words. But "Implosion" is like... You hear it and you instantly know exactly what happened by just how it sounds. Rapid unscheduled shrinking.
    It was going well until it imploded!

  • @richb313
    @richb313 Před 4 lety +12

    Centaur, a perfect example of ,"If It Ain't Broke Don't Fix It." You could probably do an entire series on that alone.

  • @bladewind0verlord
    @bladewind0verlord Před 4 lety +121

    Fun fact: everyone's favorite un-sticker-izer, wd-40, was first invented to protect the fragile steel tank walls of the atlas rockets from rust which, even in very minuscule amounts, could catastrophically ruin their structural integrity.

    • @phoule76
      @phoule76 Před 4 lety +7

      WD-Farty

    • @a-fl-man640
      @a-fl-man640 Před 4 lety +13

      and if memory serves it was the 40th try that was a success.

    • @bobblum5973
      @bobblum5973 Před 4 lety +31

      @@a-fl-man640 WD-39 just never caught on. Sort of like that soft drink, 6-Up. 😉

    • @hr_pedersen1439
      @hr_pedersen1439 Před 4 lety +15

      @ well it isn't really a lubricant...
      It's name is literally "water displacement 40"

    • @SparkBerry
      @SparkBerry Před 4 lety +15

      I use it on the aircraft I work on, and when I'm asked why am I using stuff I bought at the local hardware store, I start with " Let me tell you what this cheap stuff was made for...." 😂😂😂

  • @nobodyspecial7097
    @nobodyspecial7097 Před 4 lety +180

    "explody stuff" - Seems scientific to me.

    • @cesiumion
      @cesiumion Před 4 lety +1

      Lol

    • @bat2293
      @bat2293 Před 4 lety +5

      Reminds me of an old Aero Prof of mine who summed up a whole blackboard of equations with the phrase: "Zooo, as you can zee, no vhoosh, no zoom". I think he would have been perfectly happy with "explody stuff".

    • @dalethelander3781
      @dalethelander3781 Před 4 lety

      I LOL'd

    • @Ugly_German_Truths
      @Ugly_German_Truths Před 4 lety +1

      @Nobody Special ... only when you document it... remember your lessons from Mythbusters: it's not science if you don't take notes! :D

  • @mesonparticle
    @mesonparticle Před 4 lety +30

    I could listen to Scott say "balloon" literally all day!

  • @TheBiggreenpig
    @TheBiggreenpig Před 4 lety +93

    6:18 This flaccid rocket looks so sad.

    • @freaky_freek
      @freaky_freek Před 4 lety +30

      Failure to keep your rocket upright is a common reason for people to feel sad.

    • @anarchyantz1564
      @anarchyantz1564 Před 4 lety +20

      I hear "explosion fatigue" can really cause some issues when trying to get your thrust up.

    • @etatauri
      @etatauri Před 4 lety +8

      Scrolled down just to see an erection joke.

    • @jacianmcgurk7424
      @jacianmcgurk7424 Před 4 lety +1

      @@etatauri hahaha,nice one :-)

    • @Fred_the_1996
      @Fred_the_1996 Před 4 lety +1

      @@freaky_freek haha

  • @videolabguy
    @videolabguy Před 4 lety +17

    First there was hopper. Then there was popper! Never a dull moment.

  • @ThatBoomerDude56
    @ThatBoomerDude56 Před 4 lety +5

    Back in the eartly 1960s, my uncle came back from working at the Cape with a film reel of all of the early Atlas explosions. My cousins & I sat on the floor watching them all. Dad explained to me that the Atlas didn't have the internal structure to stand by itself. There was a sample Atlas rocket at a park outside of General Dynamics plant. He showed me the wooden frame inside that was holding it up.

  • @arikwolf3777
    @arikwolf3777 Před 4 lety +40

    I hate when you lose pressure before mission is completed.

    • @thePronto
      @thePronto Před 4 lety +5

      Even worse before the mission has started. That's just a waste of an expensive dinner. And possibly the reason why she won't return your calls. Better watch "There's something about Mary"...

  • @nicholasmaude6906
    @nicholasmaude6906 Před 4 lety +38

    Actually, Scott, the Atlas II did use SRBs and they were attached to the booster stage's thrust-structure (The part that's jettisoned after the booster engines are shut down).

    • @scottmanley
      @scottmanley  Před 4 lety +22

      Yes you're right.

    • @andret4403
      @andret4403 Před 4 lety +7

      @@scottmanley Note Atlas III was designed for SRBs as well. It had to have the tube supports upgraded due to the g loading the SRB put on the thrust section.

  • @aratanaenor
    @aratanaenor Před 4 lety +69

    "260% of flight load for about 5 hours." Is that sufficient for a speed run to the moon?

    • @MysterDaftGame
      @MysterDaftGame Před 4 lety +25

      *to the Mun

    • @Musikur
      @Musikur Před 4 lety +11

      @@MysterDaftGame *to the Mün

    • @ricomotions5416
      @ricomotions5416 Před 4 lety +14

      @@Musikur thats something for the future, real life lunar speedruns
      Lunar landing [any%] in 15min

  • @thePronto
    @thePronto Před 4 lety +59

    "The pressure inside those tanks is what kept the rocket rigid" That's what *he* said...

    • @dELTA13579111315
      @dELTA13579111315 Před 4 lety +14

      If the rocket stays rigid for more than 4 hours.....give the rocket surgeon a high 5

    • @Roonasaur
      @Roonasaur Před 4 lety +9

      Yeah, just when you though a rocket launch couldn't become any more phallic, lol

    • @Carstuff111
      @Carstuff111 Před 4 lety +1

      @@dELTA13579111315 Hahahahahahahaha!

  • @maniacal_engineer
    @maniacal_engineer Před 4 lety +3

    A coworker of mine worked on the atlas earlier in his career. The atlasses were stored under positive pressure until they could be finished. He told me of a 4th of July weekend at the San Diego plant. A supervisor was required to come in and verify pressure periodically on the Atlas semi-formed fuselages to make sure nothing crumpled. He parked his truck near the tanks and walked down to inspect them. Unfortunately he had failed to set the parking brake on the truck which rolled down and impacted the first of the missiles. It popped like a balloon, but the popping created shrapnel which took out the next one - and so on. They lost 8 of the ten missiles that day, and in the subsequent inquiry the supervisor (who miraculously was completely unscathed) was discharged
    That is the story as it was told to me by Chuck Greenman. A wwII vet who swam towing an unconscious man hundreds of yards with a broken pelvis after a crash in the south pacific.

  • @bobiboulon
    @bobiboulon Před 4 lety +6

    6:25 Wait until the space deniers find that photo. They will go absolutly mad. I can already hear them saying things like "It's a proof that the Saturn five was a rocket-assisted balloon!".

  • @dandeprop
    @dandeprop Před 4 lety +4

    Hi Scott--It also turns out that the leaking LOX badly damaged the launcher itself. The launcher structure was made of structural steel that doesn't have much fracture toughness down at LOX temperatures.

  • @h.cedric8157
    @h.cedric8157 Před 4 lety +113

    *SpaceX Starship* tank blew.
    NASA SLS: *hold my LOX*

  • @nzoomed
    @nzoomed Před 4 lety +3

    Its incredible those balloon tanks never collapsed during launch as the fuel was consumed and pressure dropped. I guess by the time that could happen, that stage is ready to separate?

    • @revenevan11
      @revenevan11 Před 4 lety +4

      They keep them pressurized with another gas or by injecting some exhaust, depending on the rocket! I'm not sure what Atlas used, but most rockets need pressure in the tanks to help fuel flow, so the falcon 9 uses helium, some russian rockets burn some fuel to add exhaust, and some others boil liquid nitrogen I think.

    • @thePronto
      @thePronto Před 4 lety +1

      @@revenevan11 that Russian idea definitely sounds like a great plan. (In a Russian accent) "Let's mix hot gases with fuel and/or oxidizer to keep rocket safe"

    • @revenevan11
      @revenevan11 Před 4 lety +1

      @@thePronto lol, it totally does! Just like the germans and Russians using concentrated vodka as an early rocket fuel! But in reality the fuel and oxidizer are in separate tanks so it shouldn't cause any issues, since there's no oxygen in the fuel tank, and I'd assume an insignificant amount in the exhaust if things are going according to plan. But, there's probably good reasons we don't see it used today!

    • @cogoid
      @cogoid Před 4 lety +1

      @@revenevan11 Atlas used helium in very much the same way as Falcon-9 does, except that in Atlas, the helium bottles were cooled by liquid nitrogen, while Falcon-9 puts the bottles directly in the LOX tank. Both rockets heat the helium by turbine exhaust before using it for tank pressurization.
      Russians did use gas generators to pressurize tanks on some rockets. Proton is one of such rockets that still flies. I think Russians had already experimented with this idea before the war, but so did the Germans. Karl-Heinz Bringer in Peenemunde have developed gas generators which burned hypergolic fuel components and then cooled the gas by injecting water. The resulting steam was inert enough to be used for pressurizing both the oxidizer tank and the fuel tank. After the war he went to France, and many French rockets used this system, including the first stage of Ariane-1 through 4, which also had its engines designed by Bringer.

  • @robmaxi1
    @robmaxi1 Před 4 lety +3

    Yes number 5! Great video Scott. I thought I knew some stuff about rockets. At forty years old I just learned that those cool looking metal rockets were balloons. Mind blown!

  • @jedswift
    @jedswift Před 4 lety +1

    A couple of thoughts on the pressure stabilized "steel balloon" structures:
    1) It should be noted that in flight loss of tank pressurization is a flight loss for any rocket. The structure of "free standing" designs are not designed to carry the propellant loads without pressurization. The pumps also require pressure on the inlets to prevent cavitation on the low pressure sides of the impellers and stators (forming tiny near vacuum gas bubbles in the flow). When these bubble collapse they generate momentary high pressures and temperatures. When this happens with the LOX pump, the metal surfaces catch fire with disastrous effects.
    3) Solid motors can be integrated to the tank using an internal ring structure as the Atlas 2A demonstrated.
    4) The real advantage of this construction technique is it decouples the requirement to be "column stable" under compression loads. This means that the material density is *not* a design requirement. Longerons, low density composite walls, honeycomb structures, and complex panel wall machining are unnecessary. The only figures of merit to consider are strength to weight and weldability. This opens up a world of potential materials, including refractory alloys that could make a reusable system simpler than competing concepts due to the near complete elimination of the acreage high temperature TPS. Post flight inspections would be vastly simplified by the single membrane tankage walls that would be completely exposed for both visual and gas leak detection.
    5) Scot noted that the Atlas was close to being an SSTO. Putting numbers to this - Mercury capsule weighted about 5,000 lbs and the booster motors and aft skirt that were jettisoned weight about 7,000 lbs. The Atlas was within 2,000 lbs of being an SSTO out of the 350,000 lb lift off weight with second generation MA-5 engines that were capable of a whopping 295 sec vacuum Isp. SpaceX's Merlin 1B, running of the same propellants advertises 310 sec and RD-191 337 seconds, likely close to the practical limit for RP1. The SpaceX Raptor advertises 363 seconds on the somewhat less dense methane, likely the best that can be done with a hydrocarbon. Diving into LH2, the RS-25 demonstrated 452.3 seconds For a 30,000 ft/sec mission this would yield a 16%, 48%, 80%, and 200% increase in injected mass respectively (Low LEO with 5kft/sec assumed aero and gravity losses).
    6) There are two big disadvantages to the pressure stabilized concepts. The first is perception, it just seems flimsy and look flimsy when held depressurized in a stretch fixture. The second is the tooling required to manufacture this class of structures is expensive and complicated; all the weld joints must be supported both internally and externally. The Atlas internal fixture collapsed like a monster umbrella to pull it out the end access panel. The Atlas manufacturing jigs should be in a museum.
    It is interesting how we seem to be very satisfied with a pressure stabilized structure in our daily lives; the pneumatic tire. The tire is much more structurally complicated. The operational environment is fraught with dynamically changing loads, abrasion and sharp objects. Makes tank design seem like a cake-walk.

  • @OnboardG1
    @OnboardG1 Před 4 lety +21

    That’s a sad trombone rocket failure if ever I’ve seen one.

  • @ekscalybur
    @ekscalybur Před 4 lety +35

    Formula 1 engineers: we use the engine as load bearing element in the structure of the car.
    NASA engineers: pffft, we use the fuel in our tanks as a structural element in our rockets.

    • @thePronto
      @thePronto Před 4 lety +16

      Parachute/paraglider designers: "We use the human as a crumple zone to protect the aerofoil."

    • @butchs.4239
      @butchs.4239 Před 4 lety +9

      Farm tractors have been built using the engine as a structural element since the 30's.

    • @johncrowerdoe5527
      @johncrowerdoe5527 Před 4 lety +1

      @@butchs.4239 Do Lamborghini cars do this too?

    • @butchs.4239
      @butchs.4239 Před 4 lety +4

      @@johncrowerdoe5527 I dunno for certain, but Lamborghini tractors do. It wouldn't surprise me that their cars do as well, using the engine as an structural element makes a lot of sense in a mid-engined rear drive car. Especially a sports car where minimal weight is a design goal.

    • @TWX1138
      @TWX1138 Před 4 lety +2

      @@butchs.4239 It doesn't hurt that the engine itself is probably the strongest component of the entire vehicle.

  • @zapfanzapfan
    @zapfanzapfan Před 4 lety +29

    260% of flight load is a good margin, I think man-rated requires 150% of flight load.

  • @markdoldon8852
    @markdoldon8852 Před 4 lety +4

    Someone said "any idiot can design a bridge. It takes an engineer to build one that just barely stands"

    • @scottmanley
      @scottmanley  Před 4 lety +1

      It’s even harder when the bridge has to fly

  • @phlarb6505
    @phlarb6505 Před 4 lety +8

    1:41 Hah! The rocket couldn't maintain it's "rigidness." It happens to the best of us, my friend.

  • @grzegorzkapica7930
    @grzegorzkapica7930 Před 4 lety +112

    So Atlas rockets are big soda cans?

    • @Atlessa
      @Atlessa Před 4 lety +11

      Yep.

    • @Steeyuv
      @Steeyuv Před 4 lety +1

      You mean, you had to ask?

    • @davidpaulsen1510
      @davidpaulsen1510 Před 4 lety +2

      So is starship well beer kegs anyway

    • @grzegorzkapica7930
      @grzegorzkapica7930 Před 4 lety +3

      @@davidpaulsen1510 I do not think Starshio needs to be pressurized to lift the payload.

    • @Jehty21
      @Jehty21 Před 4 lety +15

      No. Empty soda cans don't collapse under their own weight.

  • @sixstringedthing
    @sixstringedthing Před 4 lety +1

    Having the structural integrity of your rocket be dependent on propellant tank pressure makes perfect sense, from the point of view that your rocket engine isn't going to work very well without it. The fact that the rocket folds itself in half if it loses tank pressure is an additional minor complication.

  • @rokin0
    @rokin0 Před 4 lety +5

    "Explosion Fatigued" I don't think that could ever happen :D keep em coming. Maybe a montage to the 1812 overture!

    • @ConfusedNyan
      @ConfusedNyan Před 4 lety +1

      They did that in MythBusters with all the boomy stuff they did, so why not?

  • @mightylink65
    @mightylink65 Před 4 lety +3

    Thanks, I always wanted to know more about balloon tanks ever since I saw that option in Kerbal Realism Overhaul.

  • @mentatphilosopher
    @mentatphilosopher Před 4 lety +4

    Just like aluminum cans. Once saw a stack of aluminum cans over 30 ft high in a warehouse topple when a row towards the bottom was depressurized as a forklift scrapped across them.

    • @cogoid
      @cogoid Před 4 lety +1

      Not a scientific test, but gives one an idea of the strength of pressurized metal cans. One coke can, well padded to distribute the weight evenly, can hold:
      opened can 77 kg
      pressurized full can 360 kg
      (from "How Much Weight Can a Soda Can Hold? Hydraulic Press Test" video)

  • @garymazeffa
    @garymazeffa Před 4 lety +1

    Always a great job. You get to the key points quickly and provide nice insights. Keep up the good work!

  • @JeKramxel
    @JeKramxel Před 4 lety +1

    I always scratch my head wondering who would dislike your videos... Great content as always, Scott!

  • @VolcanicSpacePizza
    @VolcanicSpacePizza Před 4 lety +53

    Huh, I thought for museums they just stuck an i-beam up the middle of the booster. Seems alot cheaper for maintenance compared to constant pressurization.

    • @heyarno
      @heyarno Před 4 lety +24

      Or fill it with hard foam.

    • @illustriouschin
      @illustriouschin Před 4 lety +4

      They fill them with beans.

    • @JohnWilliamNowak
      @JohnWilliamNowak Před 4 lety +14

      Usually, yeah. However, the Atlas and Centaur at the US Space and Rocketry Center in Huntsville are kept at pressure.

    • @thePronto
      @thePronto Před 4 lety +8

      @@JohnWilliamNowak seems reasonable. First, it's more authentic. Second, tax-payer dollars aren't real money: they just fall off the money tree...

    • @r0br33r
      @r0br33r Před 4 lety +1

      @@thePronto You're starting to get it, NASA loves your money! And who loves money more than anyone on earth??

  • @elguinolo7358
    @elguinolo7358 Před 4 lety +11

    Black hole engines are still very experimental, they often result in the entire ship being sucked into the gravity well.

    • @revenevan11
      @revenevan11 Před 4 lety +5

      Future space travel has somehow managed to find propulsion methods even more terrifying than riding on top of a barely controlled explosion. I'd still get on the ship!

    • @sixstringedthing
      @sixstringedthing Před 4 lety +1

      If I recall my history, there was one spacecraft that successfully engaged its black hole drive, but there were some... unfortunate consequences.

    • @maranscandy9350
      @maranscandy9350 Před 4 lety +2

      sixstringedthing Was that an episode of Gilligan’s island?

    • @sixstringedthing
      @sixstringedthing Před 4 lety +1

      @@maranscandy9350 Sure, it was the one where the Professor creates a black hole drive from coconuts and bamboo, and it acidentally sends Gilligan, Ginger and The Skipper into a hell dimension where their minds are broken and their flesh corrupted, whereupon they return and start ritualistically slaughtering the rest of the castaways. A barrel of laughs for the whole familty!

    • @timothymclean
      @timothymclean Před 4 lety +1

      Small black holes are actually surprisingly safe. Between their small size and their Hawking radiation, matter falling into the black hole by accident is like a beachball falling into a fire hose nozzle while it's in use.
      Of course, if you can't keep it fed, it'll start losing mass, causing it to radiate harder and faster, leading to a runaway meltdown and a rather impressive explosion.

  • @rocketmentor
    @rocketmentor Před 4 lety

    You're the only time I heard anyone come close to calling the Atlas a SSTO which arguably it is and has orbited its self albeit with a minimal payload but none the less a great achievement for a kerosene fueled rocket. Important points are: Ground ignited sustainer/vernier engines AND same tankage as the booster engines all going into orbit.As you mentioned only the 2 booster engines are dropped but no tankage. I worked on the test stand where the Atlas was captive fired full flight configuration at Edwards AFB,stand 1a later configured for the Saturn F-1 engine testing. Great job as always Scott. Ken

  • @EddieBoes
    @EddieBoes Před 4 lety +1

    I spent the last two minutes of this video dumbfounded and contemplating the 0.015" tank wall thickness after Scott said it. WOW. THAT is an incredible piece of engineering, and a testament to the Materials engineers and Fabricators.

    • @EddieBoes
      @EddieBoes Před 4 lety

      More thought.... that CAN'T be a right number, can it? It wouldn't even be able to hold its shape during fabrication.

    • @cogoid
      @cogoid Před 4 lety

      @@EddieBoes It is the right number. Pieces were put in jigs, clamped and then welded. It was very well thought out production. You can see many parts of the process in film reports from the manufacturer.

    • @EddieBoes
      @EddieBoes Před 4 lety

      @@cogoid I think I was mixing the tanks too.... Scott was specifically talking about the Centaur upper tank.... and I was thinking about the lower tank, with it's long, cylindrical construction supporting the upper stage and payload. THAT tank is different. So, thanks for commenting, It made me look into it further to see where my thoughts went.

    • @cogoid
      @cogoid Před 4 lety +1

      @@EddieBoes The bottom, the first stage, is the Atlas missile. Its skin is also thin. From NASA report: "The Atlas booster, as an example, has a diameter of 120 inches (3.042 m).
      The skin is made of 301 extra full-hard stainless steel varying in thickness from 0.014 inch (0.000356 m) to 0.034 inch (0.000863 m). The cylinder is formed with a series of bands, approximately 30 inches (0. 761 m) wide, welded together with circumferential lap joints and doubler reinforced butt-welded vertical joints" ["Experimental bending strength of an Atlas LV-3C booster beyond compressive skin wrinkling
      " RP Miller 1969]

  • @Haloriky
    @Haloriky Před 4 lety +8

    When talking about the atlas 7d implosion you talked about a pin rupturing a helium line causing loss of pressure and consequent loss of the vehicle, could you make a video explaining how they manage to understand exactly what went wrong, when all it remains are bits scattered around the ground?
    Thank you and keep up the good work

    • @johncrowerdoe5527
      @johncrowerdoe5527 Před 4 lety

      Maybe the ruptured line was outside the rocket, as part of the Launch site.

    • @jamesanderton344
      @jamesanderton344 Před 4 lety

      Test missiles had telemetry to feed back information...and many high speed cameras on the launch pad....many of which are available on CZcams courtesy of the San Diego Air and Space Museum

  • @jbrice2010
    @jbrice2010 Před 4 lety +40

    “Explodey stuff” - yeah baby!

  • @JeffreyBue_imtxsmoke
    @JeffreyBue_imtxsmoke Před 4 lety

    Keep doing what you're doing Scott... you are the best Space Historian, bar-none. I could watch videos like this all day.

  • @electrospank
    @electrospank Před 3 lety

    These really are the best videos. Thank you ScoMan!

  • @cdmonmcginn7561
    @cdmonmcginn7561 Před 4 lety +3

    Interesting fact the balloon tanks ended up resoulting in a explosion in a missile base blowing the warhead 3 miles away

    • @scottmanley
      @scottmanley  Před 4 lety +2

      Nah those were just regular tanks leaking explodey stuff.

  • @vorpalcheese
    @vorpalcheese Před 4 lety +4

    Thanks for the great video! I've been wondering though, have you ever heard of the "tippy-sat" aka NOAA N-Prime incident? As far as I can tell no one on CZcams has covered it yet.

    • @scottmanley
      @scottmanley  Před 4 lety +4

      You mean the one where they didn't log removing the bolts?

    • @vovochen
      @vovochen Před 4 lety

      Cool.

  • @PhilJonesIII
    @PhilJonesIII Před 4 lety +1

    So, essentially, astronauts don't get sent up on rockets but balloons with rocket engines. I'm suddenly glad I didn't become an astronaut.

  • @markusdaxamouli5196
    @markusdaxamouli5196 Před 4 lety

    Great topic MANLEY...GOOD JOB

  • @UncleWermus
    @UncleWermus Před 4 lety +3

    Each day I get my full Joe Scott Manley fix is a good day

  • @breadturbo
    @breadturbo Před 4 lety +11

    'Explosion fatigue' we play KSP Scott!

    • @Atlessa
      @Atlessa Před 4 lety +1

      Well said.

    • @IainMace
      @IainMace Před 4 lety

      Came on to say exactly that... Explode fatigue??? Not a chance!

  • @gregthomas7950
    @gregthomas7950 Před 4 lety

    Great video! Never knew about the balloon tanks. Learn something new every day.

  • @aerodroo
    @aerodroo Před 4 lety

    Just found and subbed to your channel, already a huge fan. Pre-congrats on the big 1M coming up!

  • @hellishgrin4604
    @hellishgrin4604 Před 4 lety +4

    260% flight load, that's some serious FOS! For something that needs to be light weight.

  • @MendTheWorld
    @MendTheWorld Před 4 lety +5

    The sight of the parachutes deploying before the rocket hits the ground is so sad. 2:02 🙁

    • @thePronto
      @thePronto Před 4 lety +1

      Flight computer: "Wait, I'm falling but we haven't launched yet? Throw error. Alarm, alarm. Fuck it, deploy the parachutes, it won't make things worse."

    • @jordanhazen7761
      @jordanhazen7761 Před 4 lety

      @@thePronto If only the CRS-7 Dragon's logic tree had been set up that way...

    • @MeetDannyWilson
      @MeetDannyWilson Před 4 lety +1

      @MendTheWorld
      That's not a parachute - that's a payload fairing.

  • @xliquidflames
    @xliquidflames Před 4 lety

    Grissom's comment is understandable. It never stops amazing me how complex these vehicles are. One tiny thing goes wrong and you could have a rapid unscheduled disassembly like the example here - pin comes lose and hydrogen explodes. If it were me, I wouldn't be able to stop imagining some random bolt deep in the guts of the rocket wiggling out of its hole, falling, puncturing something important and blowing me up. But that's why I'm not an astronaut, I guess.

  • @chrisprince2018
    @chrisprince2018 Před 4 lety

    Great coverage, Sunday should be interesting.

  • @MushookieMan
    @MushookieMan Před 4 lety +14

    "This doesn't normally happen."

  • @FoamyDave
    @FoamyDave Před 4 lety +4

    As the Atlas is keeling over did I see a parachute deploy?

  • @emiliogreenwood8190
    @emiliogreenwood8190 Před 4 lety

    I like those Rockets going up and not going boom but then again going boom it's cool to talk about a major firework display

  • @TillRiedell
    @TillRiedell Před 4 lety

    I will never tire of rocket explosions

  • @Atlantianreborn
    @Atlantianreborn Před 4 lety +9

    If the space deniers and flat earthers saw this they would say "Look, proof that NASA uses balloons and not real rockets"

    • @electraglide9357
      @electraglide9357 Před 4 lety

      Why include flat earthers in this? You don't have to be a flat earther to question the space program. You sound like a shill!

    • @paulsilagi4783
      @paulsilagi4783 Před 3 lety

      I mean that statement is half correct, they are using balloons. Metal balloons full of rocket fuel, but still.

  • @TrainsandRockets
    @TrainsandRockets Před 4 lety +4

    "Rockets have Explody Stuff"
    ~Manley 2019 end.

  • @KnighteMinistriez
    @KnighteMinistriez Před 4 lety +2

    I don't know about you, but I like watching things go kaboomboom
    You're awesome

  • @avejst
    @avejst Před 4 lety

    Great update 👍
    Thanks for sharing 👍😀

  • @beachcomberfilms8615
    @beachcomberfilms8615 Před 4 lety +6

    "I'm Scott Manley, fly safe" (as the rocket falls and smashes into the ground)

  • @u-wot-n8
    @u-wot-n8 Před 4 lety +16

    "And therefore the Atlas V was also able to take solid rocket motors"
    The Atlas II had a variant with SRBs on it, the Atlas II AS, last launched in 2005: watch?v=VXXdxkr-L8k

  • @Mac1PC
    @Mac1PC Před 4 lety

    Very interesting and informative. Thank you.

  • @stellie3553
    @stellie3553 Před 3 lety

    Those technicians that saved the rocket payload and stopped fuel from spilling are total chads.

  • @collinschofield808
    @collinschofield808 Před 4 lety +10

    Who else has been to the Air Force Museum in Dayton?

  • @greghansen38
    @greghansen38 Před 4 lety +3

    Can we ever get enough barely-contained explodey stuff?

  • @stevengeorges9046
    @stevengeorges9046 Před 4 lety +1

    Your common soda cans are designed the same way.
    The walls of the cans are so thin that they would collapse under the weight of the cases of soda placed on top of them. It is only the pressure of the carbonated soda inside the cans that allow them to withstand the weight of the cans stacked on top of them.

  • @jimthomson6825
    @jimthomson6825 Před 4 lety

    Excellent video, thanks!

  • @chrisfields8077
    @chrisfields8077 Před 4 lety +5

    I guess with centaur being the upper stage, it doesn't require as much structural strength overall compared to any main stage.

    • @thePronto
      @thePronto Před 4 lety +1

      Centaurs were super strong and always had a powerful rocket. Oh, wait, what were we talking about?

  • @PHeMoX
    @PHeMoX Před 4 lety +8

    The NASA test was _very_ different from the SpaceX test in how this NASA test was actually supposed to burst.

    • @esegueyjose7870
      @esegueyjose7870 Před 4 lety +3

      thats literally what he said..

    • @vladimirdyuzhev
      @vladimirdyuzhev Před 4 lety

      Call me "explosion-fatigued", but I would rather listen more about that NASA test.

  • @ifell3
    @ifell3 Před 4 lety +1

    Gus never minced his words!!

  • @dusanljubec7203
    @dusanljubec7203 Před 4 lety

    That just blows my mind 1/2 a millimeter , subbed for that alone . Looking forward to the rest of your vid's

  • @allenkemp3124
    @allenkemp3124 Před 4 lety +4

    "Explody stuff" - ©Sott Manley 2019

  • @PacesIII
    @PacesIII Před 4 lety +3

    .015", or fifteen thousandths of an inch, is almost 4 sheets of copier paper in thickness.

  • @occhamite
    @occhamite Před 4 lety

    I live in Dayton, Ohio, just a few miles from the Air Force Museum (as it used to be called).
    I well remember, in the early 80's, walking out to the static display missile you mentioned, and I noted that there was only one compressor system keeping it pressurized - NO backup!
    I almost went back into the Museum to find the suggestion box, or some employee, to tell them that it was only a matter of time before that single compressor quit working for some reason, any reason, and that would be the end of the display, and that one, or better two, back ups of some description were needed.
    Guess I should have made that trip back inside....

  • @JimProng
    @JimProng Před 4 lety

    As a teenager I built a liquid powered rocket which had a fuel tank pressurised by acetylene gas which was produced in a chamber on the top of the rocket where calcium carbide and water were mixed. It exploded! I then went on to solid fuel rockets which were easier to build and did not explode so often. You couldn't do any of that today, but the UK in the 60's was a different country Scott. :-)

  • @MattChaffe
    @MattChaffe Před 4 lety +4

    Wait hold up. At 7:57 with all the Atlas V variants, there is a HLV version on the far right. Has that ever flown, or is it a design that will be flown some day? I was caught off guard cause I thought that was a Delta IV model, but quickly realized those were Altas V first stages.

    • @nardgames
      @nardgames Před 4 lety +3

      Never flown, any chanes it had of flying died when vulcan was announced.

    • @MattChaffe
      @MattChaffe Před 4 lety +1

      @@nardgames Good point, it wasn't till the end of the video I realized that Atlas won't be around for much longer

  • @bobblum5973
    @bobblum5973 Před 4 lety +5

    At my local public library, there's an interesting book about the Centaur:
    Author: Dawson, Virginia P. (Virginia Parker)
    Title: Taming liquid hydrogen : the Centaur upper stage rocket, 1958-2002 / Virginia P. Dawson, Mark D. Bowles.
    Publisher, Date: Washington, DC : National Aeronautics and Space Administration, Office of External Relations, 2004.
    Description: xiii, 289 pages : illustrations ; 29 cm.
    Series: NASA SP (Series) ; 4230. NASA history series.
    Subjects: Centaur rocket -- History. Hydrogen as fuel -- Research -- United States -- History. Liquid propellant rockets -- Research -- United States -- History.
    Other Author: Bowles, Mark D. United States. National Aeronautics and Space Administration. Office of External Relations.
    Other Title: Centaur upper stage rocket, 1958-2002
    Notes: Shipping list number: 2004-0200-P. Includes bibliographical references and index.

    • @scottmanley
      @scottmanley  Před 4 lety +5

      Yeah it’s available for free inPDF form from NASA

  • @LordCarpenter
    @LordCarpenter Před 4 lety

    That's fascinating. I used to have a model of the Atlas-Mercury. I had no idea it was a balloon tank design.

  • @Seasonstobecheerful
    @Seasonstobecheerful Před 4 lety

    Top stuff Scott .

  • @VolkerHett
    @VolkerHett Před 4 lety +4

    So it's a blimp in space then. Everything is possible!

  • @TalladegaTom
    @TalladegaTom Před 4 lety +5

    Colin Chapman would have approved of this. :)

  • @pzoe3808
    @pzoe3808 Před 4 lety +2

    If it works keep it. Like the B-52 bomber and the a-10 aircraft, It makes sense to keep good designs around. I think the case can be made to keep the Falcon 9 rocket long term with it’s amazing Economy and reuse ability.

    • @revenevan11
      @revenevan11 Před 4 lety

      Right, unless the task at hand or the enemy or competition drastically changes, or a major tech breakthrough means that worthwhile improvements can be made that aren't possible to simply add as an upgrade, stick with what works!
      That said in the case of SpaceX, I hope they keep making F9s if they're cost effective for their own niche, but I think starship might just blow it out of the water (hopefully figuratively)

  • @hagerty1952
    @hagerty1952 Před 3 lety

    The Agena shown at the beginning and end bouncing off the pavement was sent back to Sunnyvale (Building 104!) where they "pounded out the dents" and it was used on a later launch.

  • @vorlonagent
    @vorlonagent Před 4 lety +8

    "Explosion fatigue" is for the weak....

  • @adebiglazywolf5005
    @adebiglazywolf5005 Před 4 lety +4

    Wonder who's check thats coming out of
    Think of the poor bastards that have to go clean that all up

  • @AZAce1064
    @AZAce1064 Před 4 lety

    Thank you Scott👍