Space Launch System - Orion

Space Launch System - Orion

Author
Discussion

Flooble

5,565 posts

100 months

Thursday 18th March 2021
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They tweeted it's fuelled so not long to go.

Clive Milk

429 posts

40 months

Thursday 18th March 2021
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The test stand always reminds me of an oil rig.

I assume they use duct tape to stop it flying off when at full throttle?

Actually, I wonder how big the bolts are, and how big is the torque wrench ?


Beati Dogu

8,891 posts

139 months

Thursday 18th March 2021
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Not long to go now.

Clive Milk

429 posts

40 months

Thursday 18th March 2021
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Hell yeajh .. 8 mins !

Wooo


MartG

20,676 posts

204 months

Thursday 18th March 2021
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Full duration thumbup

Beati Dogu

8,891 posts

139 months

Thursday 18th March 2021
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Nice. More than they needed, so that’s good.

Bit of a fire above one engine, but it didn’t seem to worry them.

Clive Milk

429 posts

40 months

Thursday 18th March 2021
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That rocks, shut the study door and listened to it on my Focal speakers and 400w subwoofer connected to the PC

The engines were gimballing for the first few minutes then got locked and then allowed to gimbal again at the end it seemed.

I love the way the closest camera shook.

Feel sorry for those pine trees biggrin

Artemis and SLS gets a bad rap as not SpaceX, but as an old timer I love it.


Clive Milk

429 posts

40 months

Thursday 18th March 2021
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Quite frankly it blows my mind that not only can we watch it now, live, as it happens, but we can watch the nozzles up close whilst firing on our sofas.

As if it is nothing ...

smile


Beati Dogu

8,891 posts

139 months

Friday 19th March 2021
quotequote all
A huge relief to NASA, Boeing et al. Now they can take it down and ship it off to the Kennedy Space Center.

The burning above the engine was due to the extra cork shielding held on with tape scorching off. I was added for the test, due to the high amount of radiant heat while confined on the stand. On an actual flight, this wouldn't be such an issue, so the additional shielding wouldn't be needed..

SCEtoAUX

4,119 posts

81 months

Friday 19th March 2021
quotequote all
https://www.bbc.co.uk/news/science-environment-564...

Second photo:

"The four engines sent a plume of exhaust spiralling high into the air"

Is that not water vapour from the deluge system? I may be wrong, but I suspect not.

MartG

20,676 posts

204 months

Friday 19th March 2021
quotequote all
SCEtoAUX said:
https://www.bbc.co.uk/news/science-environment-564...

Second photo:

"The four engines sent a plume of exhaust spiralling high into the air"

Is that not water vapour from the deluge system? I may be wrong, but I suspect not.
It is water vapour, but not from the deluge system - it's from the engine exhaust. When you burn hydrogen and oxygen your exhaust is H2O smile

When they run these tests it is normal for it to start raining downwind as the exhaust cools and condenses smile

Edit: In the pic you can see it falling as rain in the background



Edited by MartG on Friday 19th March 09:47

MartG

20,676 posts

204 months

Friday 19th March 2021
quotequote all
Plume was spotted by weather satellite !

https://twitter.com/NASA_SPoRT/status/137265473706...

annodomini2

6,861 posts

251 months

Friday 19th March 2021
quotequote all
MartG said:
SCEtoAUX said:
https://www.bbc.co.uk/news/science-environment-564...

Second photo:

"The four engines sent a plume of exhaust spiralling high into the air"

Is that not water vapour from the deluge system? I may be wrong, but I suspect not.
It is water vapour, but not from the deluge system - it's from the engine exhaust. When you burn hydrogen and oxygen your exhaust is H2O smile

When they run these tests it is normal for it to start raining downwind as the exhaust cools and condenses smile

Edit: In the pic you can see it falling as rain in the background



Edited by MartG on Friday 19th March 09:47
Actually it's both, the heat from the engines will vaporise some of the water from the deluge system.

Beati Dogu

8,891 posts

139 months

Friday 19th March 2021
quotequote all
They sure get through some water. Looks like they pump it from a large settlement pond nearby.

The booster will be moved to Florida by April it seems. The canal behind the stand allows them to ship rockets in and out via the nearby Pearl River to the sea.

MartG

20,676 posts

204 months

Wednesday 7th April 2021
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Flooble

5,565 posts

100 months

Wednesday 7th April 2021
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Well, better than the live televised drop test of the Orion capsule. I guess we shouldn't complain they are giving us more insight into the testing, but it wasn't exactly riveting!

Eric Mc

Original Poster:

122,024 posts

265 months

Thursday 8th April 2021
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Flooble said:
Well, better than the live televised drop test of the Orion capsule.
They did that years ago.

jingars

1,094 posts

240 months

Thursday 8th April 2021
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Eric Mc

Original Poster:

122,024 posts

265 months

Thursday 8th April 2021
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To be sure, to be sure, to be sure, to be sure........ ad nauseum.

MartG

20,676 posts

204 months

Thursday 8th April 2021
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Is it just me, or does it seem like NASA are making major PR events of things which are really quite minor ?

That capsule drop test is the sort of thing which should be done several times in one day with different drop heights and angles, but they made a big ballyhoo about a single drop :/

I guess the whole programme is proceeding so slowly the PR folks have to do something to justify their existence frown