Author Topic: SpaceX Falcon 9 v1.1 - SES-8 - DISCUSSION THREAD  (Read 611270 times)

Offline IRobot

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Re: SpaceX Falcon 9 v1.1 - SES-8 - DISCUSSION THREAD
« Reply #320 on: 11/13/2013 03:14 pm »
There are some obvious advantages of doing the static fire with the payload on: cost and time. The question is if it pays off the risk.

I hate to be picky, but what cost and time? The time to attach the payload should be the same if it was done before or after the static fire test.
No because for non-pad integration you need to move the vehicle back to the VAB.

Offline Jim

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Re: SpaceX Falcon 9 v1.1 - SES-8 - DISCUSSION THREAD
« Reply #321 on: 11/13/2013 03:19 pm »

It may not be practical yet, but it's conceivable. And if you are looking to drive out cost from your process flow, one less rollback/rollout seems like it might save a bit.

payloads do not want to be involved with static fire, regardless of savings.  It is an unnecessary risk for them.

Static fires will be a thing of the past and eventually so will WDR's

edited.
« Last Edit: 11/13/2013 04:57 pm by Jim »

Offline Garrett

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Re: SpaceX Falcon 9 v1.1 - SES-8 - DISCUSSION THREAD
« Reply #322 on: 11/13/2013 03:28 pm »
There are some obvious advantages of doing the static fire with the payload on: cost and time. The question is if it pays off the risk.

I hate to be picky, but what cost and time? The time to attach the payload should be the same if it was done before or after the static fire test.
No because for non-pad integration you need to move the vehicle back to the VAB.
Apart from being somewhat off topic (better suited to general F9 thread), most of this discussion is irrelevant. The comments by Jim and others on the previous two/three pages suggest that SpaceX will very likely eliminate WDR's and static fires very soon (my guess: within a year), with the usual caveat that everything will depend on multiple successful launches.
- "Nothing shocks me. I'm a scientist." - Indiana Jones

Offline Kabloona

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Re: SpaceX Falcon 9 v1.1 - SES-8 - DISCUSSION THREAD
« Reply #323 on: 11/15/2013 03:41 am »

But the bigger question is, will they at some point eliminate standalone WDR and go straight to static fire?

It would be the other way around.  Static fire will be eliminated first

Apparently not.

Offline Garrett

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Re: SpaceX Falcon 9 v1.1 - SES-8 - DISCUSSION THREAD
« Reply #324 on: 11/15/2013 07:28 am »

But the bigger question is, will they at some point eliminate standalone WDR and go straight to static fire?

It would be the other way around.  Static fire will be eliminated first

Apparently not.
The situation seems ambiguous. It's a joint WDR/static fire test, though of course all static fire tests include, by default, a WDR. We'll have to see the process flow for the next few launches to see if the stand alone WDR is consistently eliminated in favour of a static fire.
- "Nothing shocks me. I'm a scientist." - Indiana Jones

Offline Jim

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Re: SpaceX Falcon 9 v1.1 - SES-8 - DISCUSSION THREAD
« Reply #325 on: 11/15/2013 10:24 am »

But the bigger question is, will they at some point eliminate standalone WDR and go straight to static fire?

It would be the other way around.  Static fire will be eliminated first

Apparently not.

I missed the word "standalone"

Offline aero

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Re: SpaceX Falcon 9 v1.1 - SES-8 - DISCUSSION THREAD
« Reply #326 on: 11/18/2013 08:38 pm »
With launch a week away, what is the schedule for static fire and launch readiness review?
Retired, working interesting problems

Offline WHAP

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Re: SpaceX Falcon 9 v1.1 - SES-8 - DISCUSSION THREAD
« Reply #327 on: 11/18/2013 09:24 pm »
Last I heard static fire was tomorrow, but I don't have a reference to cite.
ULA employee.  My opinions do not necessarily reflect those of my employer.

Offline Comga

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Re: SpaceX Falcon 9 v1.1 - SES-8 - DISCUSSION THREAD
« Reply #328 on: 11/18/2013 11:23 pm »
Last I heard static fire was tomorrow, but I don't have a reference to cite.
orionsbelt posted that there is an update in L2. for those who have subscribed.
What kind of wastrels would dump a perfectly good booster in the ocean after just one use?

Offline beancounter

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Re: SpaceX Falcon 9 v1.1 - SES-8 - DISCUSSION THREAD
« Reply #329 on: 11/19/2013 05:06 am »
Will they, won't they, will they, won't they, will they launch on the 25th???    ;D 
Go SpaceX and SES-8
Beancounter from DownUnder

Offline Comga

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Re: SpaceX Falcon 9 v1.1 - SES-8 - DISCUSSION THREAD
« Reply #330 on: 11/19/2013 09:18 pm »
Mission patch shown in http://forum.nasaspaceflight.com/index.php?topic=32783.msg1121444#msg1121444
No four leaf clover! :o
Edit: It is there, below the solar panel. Green on Blue, low contrast.
My bad!
« Last Edit: 11/19/2013 09:22 pm by Comga »
What kind of wastrels would dump a perfectly good booster in the ocean after just one use?

Offline AS-503

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Re: SpaceX Falcon 9 v1.1 - SES-8 - DISCUSSION THREAD
« Reply #331 on: 11/20/2013 03:44 pm »
Mission patch shown in http://forum.nasaspaceflight.com/index.php?topic=32783.msg1121444#msg1121444
No four leaf clover! :o
Edit: It is there, below the solar panel. Green on Blue, low contrast.
My bad!

Plus it's *lucky* Falcon 9 flight number 7 (jinx)  :D
Although everyone around here knows that it is really flight 2 (un-jinx)  ;)

Offline QuantumG

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Re: SpaceX Falcon 9 v1.1 - SES-8 - DISCUSSION THREAD
« Reply #332 on: 11/20/2013 08:52 pm »
SpaceX Falcon 9 v1.1 WDR and Hot Fire for SES-8 mission scrubbed for the day. Will make another attempt on Thursday. - Chris on Twitter  8)
Human spaceflight is basically just LARPing now.

Offline tigerade

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Re: SpaceX Falcon 9 v1.1 - SES-8 - DISCUSSION THREAD
« Reply #333 on: 11/20/2013 09:02 pm »
Was the scrub due to weather?

Offline Jcc

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Re: SpaceX Falcon 9 v1.1 - SES-8 - DISCUSSION THREAD
« Reply #334 on: 11/21/2013 12:43 am »
Here is the Falcon sans payload.
Does the base of the T/E look wide enough for a FH?
I know they were not supposed to be preparing SLC-40 for FH, but if that is the rebuilt T/E for F9 1.1, it looks as wide as the one at Vandenburg at the base.


Offline Lars_J

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Re: SpaceX Falcon 9 v1.1 - SES-8 - DISCUSSION THREAD
« Reply #335 on: 11/21/2013 01:04 am »
Here is the Falcon sans payload.
Does the base of the T/E look wide enough for a FH?
I know they were not supposed to be preparing SLC-40 for FH, but if that is the rebuilt T/E for F9 1.1, it looks as wide as the one at Vandenburg at the base.

It might be wide enough, but it doesn't look as strong as the VAFB T/E. And the base width is partially an optical illusion, as you can see from the reverse angle in the top picture below.
(the first picture is the SLC-40 T/E without the top piece, padrat posted it a while back)

« Last Edit: 11/21/2013 01:17 am by Lars_J »

Offline Chris Bergin

Re: SpaceX Falcon 9 v1.1 - SES-8 - DISCUSSION THREAD
« Reply #336 on: 11/21/2013 01:12 am »
SpaceX Falcon 9 v1.1 WDR and Hot Fire for SES-8 mission scrubbed for the day. Will make another attempt on Thursday. - Chris on Twitter  8)

Which are just reposts of posts made in the UPDATE thread:

http://forum.nasaspaceflight.com/index.php?topic=32783.30

Twitter is never going to be somewhere I post something that isn't already on here, but I know a lot of people are still confused about the difference between an UPDATE thread and a DISCUSSION thread....and more so the value of the L2 SpaceX section.
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Offline QuantumG

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Re: SpaceX Falcon 9 v1.1 - SES-8 - DISCUSSION THREAD
« Reply #337 on: 11/21/2013 01:15 am »
Where'd you say the second part of your tweet on that thread?

Obviously, if it's only on L2 I don't repeat it.
« Last Edit: 11/21/2013 01:16 am by QuantumG »
Human spaceflight is basically just LARPing now.

Offline Chris Bergin

Re: SpaceX Falcon 9 v1.1 - SES-8 - DISCUSSION THREAD
« Reply #338 on: 11/21/2013 04:41 am »
Where'd you say the second part of your tweet on that thread?

Obviously, if it's only on L2 I don't repeat it.


Oh crap! I didn't mention next attempt Thursday on the thread, did I! Edited that in. Big no no for me to give more to Twitter than on the forum!

Doesn't help that I'm in an INCREDIBLY grumpy mood! (tired) ;D

Now I've got to send myself a moderator note for going off topic.
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Offline woods170

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Re: SpaceX Falcon 9 v1.1 - SES-8 - DISCUSSION THREAD
« Reply #339 on: 11/21/2013 07:02 am »
Where'd you say the second part of your tweet on that thread?

Obviously, if it's only on L2 I don't repeat it.


Oh crap! I didn't mention next attempt Thursday on the thread, did I! Edited that in. Big no no for me to give more to Twitter than on the forum!

Doesn't help that I'm in an INCREDIBLY grumpy mood! (tired) ;D

Now I've got to send myself a moderator note for going off topic.

Send yourself to bed. Much better.

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