Author Topic: Returned Falcon 9 OG2 First Stage Transported to 39A HIF  (Read 73783 times)

Offline Mader Levap

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Some guy noticed something verrry interesting...

https://www.instagram.com/p/_rxv0Unse7/?taken-by=alternativeauto_2.0

Note no legs, as expected.
« Last Edit: 12/26/2015 01:16 pm by Chris Bergin »
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Online meekGee

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Re: Stage transported
« Reply #1 on: 12/25/2015 09:19 pm »
Some guy noticed something verrry interesting...

https://www.instagram.com/p/_rxv0Unse7/?taken-by=alternativeauto_2.0

Note no legs, as expected.

And a happy new home at 39A
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Offline brettreds2k

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Re: Stage transported
« Reply #2 on: 12/26/2015 12:26 am »
Very cool, have any pictures of the landing pad surfaced that show how that faired from the landing?
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Offline Kabloona

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Re: Stage transported
« Reply #3 on: 12/26/2015 02:33 am »
Some guy noticed something verrry interesting...

https://www.instagram.com/p/_rxv0Unse7/?taken-by=alternativeauto_2.0

Note no legs, as expected.

Thanks, and here's a comment posted on that video from an apparent SpaceXer:

Quote
[email protected]_2.0, Thanks for posting this video, I'd get canned for posting it. We are on top on the world right now and Im proud as hell of the great team I work with, but I would like for you to take a moment to consider all of the long hours, late nights, missed birthdays and disappointed loved ones went into this launch and landing. It's been a hell of a year. Go SpaceX Go Falcon9

No doubt it's been a brutal 6 months.

Offline shuttlefan

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Re: Stage transported
« Reply #4 on: 12/26/2015 02:43 am »
What are they going to do with it at Pad A?

Offline Kabloona

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Re: Stage transported
« Reply #5 on: 12/26/2015 02:48 am »
What are they going to do with it at Pad A?

Use it to fit check all the pad connections, and do a static fire on the pad.

Offline Lars-J

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Re: Stage transported
« Reply #6 on: 12/26/2015 02:48 am »

What are they going to do with it at Pad A?

Fit checks and potential hot fire.

Offline shuttlefan

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Re: Stage transported
« Reply #7 on: 12/26/2015 03:02 am »
So they plan on actually erecting it on the pad?!

Offline macpacheco

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Re: Stage transported
« Reply #8 on: 12/26/2015 03:12 am »
So they plan on actually erecting it on the pad?!
Yes, a normal (or longer duration) static fire to perform a full shakedown of the pad.
Make sure everything is great, to perhaps do the next CRS launch on that pad. I'm assuming CRS missions will be done at LC39A to offload LC40 (it's been said that govt launches and FH launches go to LC39A).
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Offline shuttlefan

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Re: Stage transported
« Reply #9 on: 12/26/2015 03:26 am »
So they plan on actually erecting it on the pad?!
Yes, a normal (or longer duration) static fire to perform a full shakedown of the pad.
Make sure everything is great, to perhaps do the next CRS launch on that pad. I'm assuming CRS missions will be done at LC39A to offload LC40 (it's been said that govt launches and FH launches go to LC39A).

Well it says the next CRS launch is targeted Feb.7th from Pad 40 unless they plan on moving it to Pad 39-A.

Offline macpacheco

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Re: Stage transported
« Reply #10 on: 12/26/2015 04:07 am »
So they plan on actually erecting it on the pad?!
Yes, a normal (or longer duration) static fire to perform a full shakedown of the pad.
Make sure everything is great, to perhaps do the next CRS launch on that pad. I'm assuming CRS missions will be done at LC39A to offload LC40 (it's been said that govt launches and FH launches go to LC39A).

Well it says the next CRS launch is targeted Feb.7th from Pad 40 unless they plan on moving it to Pad 39-A.

Makes sense. The static fire on LC39A might be done after Feb 7th anyway. But once the pad is operational, then I expect it will be used for CRS missions to take advantage of its own processing facilities allowing for parallel preparation of 3 launches simultaneously (LC40, LC39A and Vandy).
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Thread renamed to something descriptive. Apparently it's on another thread too, but I think it deserves a standalone at least.

This will be the rolled out for a Static Fire in 2016.
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Offline FishInferno

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Re: Returned Falcon 9 OG2 First Stage Transported to 39A HIF
« Reply #12 on: 12/26/2015 02:21 pm »
Why no legs?
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Offline shuttlefan

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Re: Returned Falcon 9 OG2 First Stage Transported to 39A HIF
« Reply #13 on: 12/26/2015 02:24 pm »
So they plan on actually erecting it on the pad?!
Yes, a normal (or longer duration) static fire to perform a full shakedown of the pad.
Make sure everything is great, to perhaps do the next CRS launch on that pad. I'm assuming CRS missions will be done at LC39A to offload LC40 (it's been said that govt launches and FH launches go to LC39A).

Well it says the next CRS launch is targeted Feb.7th from Pad 40 unless they plan on moving it to Pad 39-A.

Makes sense. The static fire on LC39A might be done after Feb 7th anyway. But once the pad is operational, then I expect it will be used for CRS missions to take advantage of its own processing facilities allowing for parallel preparation of 3 launches simultaneously (LC40, LC39A and Vandy).

Ok great thanks for the info!

Offline Jakusb

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Re: Returned Falcon 9 OG2 First Stage Transported to 39A HIF
« Reply #14 on: 12/26/2015 02:25 pm »

Why no legs?
Current assumption: they have no easy way to fold them back.
Probably easier to just detach, inspect thoroughly.
Also, not needed for static fire at LC39A.

Online rsdavis9

Anybody have an explanation of the soot patterns on the rocket? I can see the pattern for where the legs
 were but why does it stop right above the legs and then continues near the top?
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Offline Dante80

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Re: Returned Falcon 9 OG2 First Stage Transported to 39A HIF
« Reply #16 on: 12/26/2015 02:44 pm »
Current speculation is that the lower end either uses a different paint that results in some short of ablation, or that the soot mark stops at the end of the LOX tank (which is very cold/has ice and soot does not stick there).

For reference, we saw the same exact soot pattern in the CRS-6 landing attempt.
« Last Edit: 12/26/2015 02:44 pm by Dante80 »

Online rsdavis9

OK oxygen tank and frost makes sense but the soot reappears near the top also where the tank still is. Unless the lox isn't sloshing that far up?
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Offline Robotbeat

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Re: Stage transported
« Reply #18 on: 12/26/2015 03:47 pm »
Very cool, have any pictures of the landing pad surfaced that show how that faired from the landing?
Here:
https://twitter.com/elonmusk/status/679145544673923072

Seems to have fared very well, actually. No damage is visible in this video, so any damage would have to be relatively minor.
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Offline FishInferno

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Re: Returned Falcon 9 OG2 First Stage Transported to 39A HIF
« Reply #19 on: 12/26/2015 03:50 pm »
OK oxygen tank and frost makes sense but the soot reappears near the top also where the tank still is. Unless the lox isn't sloshing that far up?

The Lox is all in the bottom of the tank, so the top will not be as cold.
Comparing SpaceX and SLS is like comparing paying people to plant fruit trees with merely digging holes and filling them.  - Robotbeat

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