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Unprepared astronauts

Old 31st Aug 2018, 20:09
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Unprepared astronauts

If you believe the press the international space station crew did not have a procedure to plug leaks caused by micrometeorites.


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Old 31st Aug 2018, 20:24
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Originally Posted by mickjoebill View Post
If you believe the press the international space station crew did not have a procedure to plug leaks caused by micrometeorites.


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In the ship? In themselves?
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Old 31st Aug 2018, 20:39
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Astronauts tackle air leak on International Space Station.
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Old 31st Aug 2018, 21:05
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Duct tape will be one of the pivotal inventions in the human conquest of the galaxy.....

Last edited by ORAC; 31st Aug 2018 at 21:42.
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Old 31st Aug 2018, 21:29
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The next crew rotation will include a little Dutch boy
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Old 31st Aug 2018, 21:43
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Daily Mail headline - “First Dyke in Space!!”
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Old 31st Aug 2018, 23:50
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Originally Posted by ORAC View Post
Daily Mail headline - “First Dyke in Space!!”
Too late for that
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Old 1st Sep 2018, 00:17
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This is what I found surprising:
The astronauts were asleep at the time, but when they rose for their day's work on Wednesday they were instructed to search for the leak.
They all sleep at the same time, with no one on "watch?" I would have thought that just good...um, spacemanship. Maybe they just leave it all to HAL these days...
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Old 1st Sep 2018, 05:35
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I’m not sure about the protocol on something the size of ISS but way way back 50 ish years ago in the days of Apollo (and possibly even earlier on some of the Gemini flights ) it was discovered that having a crewmember on watch, moving, possibly talking on the radio etc, in a very confined space disturbed rest for the other crewmembers. It was also fairly pointless given the level of monitoring that the controllers (engineers) could do from the ground via telemetry. As a result it was decided to have everybody onboard “off watch” at the same time and have Houston (in the American case) keep an eye on the ship.

As an example the following is from a transcript of a Public Affairs Officer (PAO) report broadcast from Mission Control at just after 170 hours into the Apollo 11 mission:

PAO: “This is Apollo Control at 170 hours, 28 minutes. The Flight Surgeon reports that all three crew members apparently are still sleeping, and there are no immediate plans to awaken them at this time. Apollo 11 is presently 115,470 nautical miles from the Earth”.....”All systems on the spacecraft continue to function normally at this time.”

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Old 1st Sep 2018, 11:56
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I agree let them sleep as if you let them go to bed when the sun sets and wake when it rises then they would be in and out of bed quicker than Bill Clinton.
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Old 1st Sep 2018, 14:12
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I often get out of bed for a leak; it's an age thing.
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Old 1st Sep 2018, 14:20
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Failure is not an option

Is a good book on how the USA mission controllers work and the procedures used and the reason behind them. If your interested in that sort of thing.
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Old 2nd Sep 2018, 00:19
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Manned space flight is probably the biggest and most expensive investment in the very long term future of the human race. An undefinable overall cost and an unquantifiable (at present) return.. On what was a very much smaller scale, almost equivalent was the UK investment in radar and fighter control in the years prior to WW2
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Old 2nd Sep 2018, 01:55
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Fatigue is a major cause of mistakes, but they have an alarm alerting them to an air leak, if it is serious.
I doubt this is the first time they've had a leak.

https://www.quora.com/If-the-Interna...-astronauts-do
If the International Space Station had a small air leak, what would the astronauts do? [2014]

The ISS software is designed to trigger a C&W (Caution & Warning) system alarm that there is a rapid depress when the pressure sensors detect a dP/dt of -0.78 mmHg/min and a total pressure drop of at least 20 mmHg. Should that happen, or should the crewmember detect a depress due to ears popping or hearing a leak and then manually annunciate a rapid depress emergency, the following steps should be taken:
[see link.]
______________
On what was a very much smaller scale, almost equivalent was the UK investment in radar and fighter control in the years prior to WW2
Necessity is the mother of invention

See:
https://ethw.org/MIT_Rad_Lab
World War II was a watershed in the history of many different technologies, not the least of which was radar. In the United States much of radar research took place at the Massachusetts Institute of Technology’s Radiation Laboratory or Rad Lab. Engineers and scientists at Rad Lab designed almost half of the radar deployed in World War II and also launched a new era of collaboration between government, industry, and academia. The results were stunning.

In the late summer of 1940 Britain faced Germany almost alone. France had been defeated, and the Soviet Union and Germany were observing their non-aggression pact (Hitler would turn on Stalin in June 1941). Dependent as it was on shipborne commerce, Britain was gravely threatened by Germany’s submarines. The United States, though officially neutral, was becoming involved in helping Britain maintain its shipping lifelines.

It was at this time that the British Prime Minister Winston Churchill decided to send a technical mission to the United States. Known as the Tizard mission, after its leader Sir Henry Tizard, it shared information about technologies critical to the outcome of the war: jet aircraft, submarine detection devices, gun directors, and radar. It was becoming clear to British leaders that radar could play many important roles during the war and they hoped to enlist the resources of the United States, which had the world’s largest radio manufacturing business, in developing radar. The Tizard mission convinced U.S leaders that radar was becoming a supremely important weapon of war. It also shared with the U.S the invention of the cavity magnetron, a device used to generate microwaves for radar systems.

Last edited by visibility3miles; 2nd Sep 2018 at 02:13.
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Old 2nd Sep 2018, 09:11
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If you believe the press the international space station crew did not have a procedure to plug leaks caused by micrometeorites.
i haven’t wasted my time on the article, but it’s a load of crap. I know an engineer who works on the ISS systems and we had a discussion about this very topic about 2 years ago. They have tape and other things for this at the ready.
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Old 2nd Sep 2018, 15:48
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To save you the bother after a search they found a hair fracture in the Soyuz orbital section.

This was confirmed by someone sticking there thumb over it.... Personally I wouldn't do this in case my thumb froze to the metal around it but there we go.

It was fixed with tape.

That section gets filled full of rubbish and is burned up when the astronauts return in the decent section. So once the change over is done then the leak is history.
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Old 2nd Sep 2018, 16:56
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They use kapton tape for such things. It has all sorts of excellent properties, and is also found (presumably as sheets, not tape) in the heatshields used for re-entry. The aviation industry has a less rosy opinion of the stuff, given that it's been implicated in a few incidents. Electrical insulation is not one of its strong points.
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Old 2nd Sep 2018, 17:04
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I presumed as it was in the Russian section they used Russian repair materials that will be matched to their materials. I wouldn't be surprised if it was horse hoof glue with a hemp mat.
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Old 2nd Sep 2018, 18:18
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Seeing as this occurred while they were asleep and it was only a small hole, they could prepare in advance by taking this advice:

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Old 2nd Sep 2018, 21:46
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See how prepared they are when one goes for a spacewalk and floats a green luminous inflatable blow up Alien by the window.
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