SpaceX Tuesday...

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Flooble

5,565 posts

100 months

Wednesday 14th September 2016
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p1stonhead said:
I am staggered that every inch of the rocket isnt covered by ultra high def cameras already to be honest.
What you can see with your eyes is not always that useful though. You'd be wanting all sorts of other sensors too anyway. I can't see static buildup, or a pressure change, until it has a physical impact on other things.

p1stonhead

25,545 posts

167 months

Wednesday 14th September 2016
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Flooble said:
p1stonhead said:
I am staggered that every inch of the rocket isnt covered by ultra high def cameras already to be honest.
What you can see with your eyes is not always that useful though. You'd be wanting all sorts of other sensors too anyway. I can't see static buildup, or a pressure change, until it has a physical impact on other things.
Fair enough I guess there would be limited information to be found in some cases. But seeing as they were asking if anyone had any footage at one point I believe, perhaps they will do this in future.

RobDickinson

31,343 posts

254 months

Wednesday 14th September 2016
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given it was a static fire test and miles from anywhere 3rd party footage must be quite limited?

And as such being 'routine' probably isnt covered as well by spacex themselves.

Highspeed cameras are not cheap and scattering them everywhere would be a bit of a mission - remember they are likely to get damaged/toasted during this too..

p1stonhead

25,545 posts

167 months

Wednesday 14th September 2016
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RobDickinson said:
given it was a static fire test and miles from anywhere 3rd party footage must be quite limited?

And as such being 'routine' probably isnt covered as well by spacex themselves.

Highspeed cameras are not cheap and scattering them everywhere would be a bit of a mission - remember they are likely to get damaged/toasted during this too..
You're right I forgot for a minute that this didnt happen during a launch!

2fast748

1,094 posts

195 months

Monday 19th September 2016
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MartG

20,677 posts

204 months

Monday 19th September 2016
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2fast748 said:
Interesting, though since when has 11 days before been "on the eve of" rolleyes

Einion Yrth

19,575 posts

244 months

Monday 19th September 2016
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MartG said:
2fast748 said:
Interesting, though since when has 11 days before been "on the eve of" rolleyes
Is it just me, or can anyone else hear scores of engineers leaping up and down and shout "Elon, just shut the fsck up will you", whenever he comes out with one of these, shall we say optimistic, pronouncements.

Beati Dogu

8,891 posts

139 months

Monday 19th September 2016
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There's nothing wrong with being a visionary sometimes. Makes it all the more interesting I think.

FurtiveFreddy

8,577 posts

237 months

Tuesday 20th September 2016
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Musk is a refreshing change from the corporate bks spouted from the vast majority of CEOs these days.

In any case, engineers rarely like what management/marketing/sales do or say. They are funny like that.

leglessAlex

5,449 posts

141 months

Tuesday 20th September 2016
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I like how Musk aims high and isn't afraid to say that.

Sure, a lot of what he says isn't that realistic but it's great to hear what his ambitions are.

MartG

20,677 posts

204 months

Wednesday 21st September 2016
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NASA has published innumerable ( and expensive ! ) Mars mission 'studies' since the 1960s, but never actually got anywhere, and no-one is bothered

SpaceX publish some information about their planned Mars mission, which on past performance by the company actually stands a chance of happening, and a lot of people seem very quick to criticise - I've seen a lot of very negative comments online about SpaceX's Mars plans frown

Sylvaforever

2,212 posts

98 months

Wednesday 21st September 2016
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Yep, the legacy manufacturer's see the silk purse closing

Flooble

5,565 posts

100 months

Wednesday 21st September 2016
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But but but, look at our pretty powerpoints!

MartG

20,677 posts

204 months

Friday 23rd September 2016
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Apparently it is looking like a failure in the 2nd stage helium pressurisation system caused the loss of the Falcon 9

http://www.spacex.com/news/2016/09/01/anomaly-upda...

Flooble

5,565 posts

100 months

Friday 23rd September 2016
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So last time it was a strut holding the helium tank, this time it's the tank itself?

Beati Dogu

8,891 posts

139 months

Friday 23rd September 2016
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As I understand it, the helium tank is located inside the oxygen tank. If it loses integrity for whatever reason, the pressure of expanding helium will in turn burst the oxygen tank, with obvious consequences.

Edit to add: Yes, they are located in the oxygen tanks and are running at around 5,500 psi (380 bar). So no wonder they go off like a bomb if they let go. They're called a "composite overwrapped pressure vessel" (COPV) - basically a non-structural liner wrapped in carbon fibre.

Here's a couple of smaller ones undergoing destructive tests:

https://www.youtube.com/watch?v=5UdVnO10J3U

At the time of the Falcon 9 explosion, both liquid oxygen and helium were still being loaded into the upper stage.

Edited by Beati Dogu on Saturday 24th September 02:51

Sylvaforever

2,212 posts

98 months

Sunday 25th September 2016
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Flooble said:
So last time it was a strut holding the helium tank, this time it's the tank itself?
Somewhat simplistic. .

http://www.spacex.com/news/2015/07/20/crs-7-invest...

http://www.spacex.com/news/2016/09/01/anomaly-upda...

https://www.reddit.com/r/spacex/comments/50rr9v

Beati Dogu

8,891 posts

139 months

Monday 26th September 2016
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The Muskmeister is going to talk about SpaceX's Mars plans at the International Astronautical Congress in Guadalajara, Mexico on Tuesday.

Starts at 7.30 pm UK time.

Should be rather interesting; "SpaceX" is short for "Space Exploration Technologies Corporation" after all.

http://SpaceX.com/Mars


ninja-lewis

4,241 posts

190 months

Tuesday 27th September 2016
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Slight delay - should start any moment now.

This video has appeared early - https://www.youtube.com/watch?v=0qo78R_yYFA


Edited by ninja-lewis on Tuesday 27th September 19:49

Beati Dogu

8,891 posts

139 months

Tuesday 27th September 2016
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Looks like a scene from "Things to Come", the 1936 adaption of HG Wells' The Shape of Things to Come.

I think Musk was inspired by Raymond Massey's character near the end.

https://www.youtube.com/watch?v=wqH1jyiHCyo
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