Author Topic: SpaceX Texas launch site Discussion and Updates - Thread 11  (Read 342235 times)

Offline vaporcobra

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Re: SpaceX Texas launch site Discussion and Updates - Thread 11
« Reply #420 on: 06/19/2021 08:38 am »
Not entirely sure but it looks like SpaceX might be installing or at least assembling some kind of structure at the base of the tower.

youtube.com/watch?v=sTA0GTgFn5E

Edit: Visible here, too.

https://twitter.com/cnunezimages/status/1406196271279489027
« Last Edit: 06/19/2021 10:56 am by vaporcobra »

Online FutureSpaceTourist

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Re: SpaceX Texas launch site Discussion and Updates - Thread 11
« Reply #421 on: 06/19/2021 10:21 am »
https://twitter.com/cowboydanpaasch/status/1406188127438491655

Quote
"... a 469' tall launch tower w/ 10' lightning rod to lift its new rocket and booster on the launch mount, and to catch the super-heavy booster upon return from launch ... trusses to allow mechanical arms to lift vehicles" #SpaceX
oeaaa.faa.gov/oeaaa/external…
oeaaa.faa.gov/oeaaa/external…

https://oeaaa.faa.gov/oeaaa/external/letterViewer.jsp?letterID=474845306

Quote
** DETERMINATION OF NO HAZARD TO AIR NAVIGATION **

The Federal Aviation Administration has conducted an aeronautical study under the provisions of 49 U.S.C., Section 44718 and if applicable Title 14 of the Code of Federal Regulations, part 77, concerning:

Structure: Launch Tower
Location: Brownsville, TX
Latitude: 25-59-45.95N NAD 83
Longitude: 97-09-16.94W
Heights: 9 feet site elevation (SE)
   479 feet above ground level (AGL)
   488 feet above mean sea level (AMSL)

This aeronautical study revealed that the structure does not exceed obstruction standards and would not be a hazard to air navigation provided the following condition(s), if any, is(are) met:
« Last Edit: 06/19/2021 10:23 am by FutureSpaceTourist »

Online FutureSpaceTourist

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Re: SpaceX Texas launch site Discussion and Updates - Thread 11
« Reply #422 on: 06/19/2021 01:40 pm »
https://twitter.com/thefavoritist/status/1406243453860724736

Quote
The Liebherr LR 1600/2’s (aka Tankzilla) turntable now appears to be laying on the ground after being completely disassembled yesterday.

Offline cscott

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Re: SpaceX Texas launch site Discussion and Updates - Thread 11
« Reply #423 on: 06/19/2021 02:28 pm »
"mechanical arms to lift" -- not "crane on top to lift" or any sort of hoist.  Hmm!

Offline wannamoonbase

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Re: SpaceX Texas launch site Discussion and Updates - Thread 11
« Reply #424 on: 06/19/2021 03:15 pm »
"mechanical arms to lift" -- not "crane on top to lift" or any sort of hoist.  Hmm!

Very Hmm, this will be interesting to see what first principals madness the SpaceX crew has dreamed up.

They must love (and hate) having a boss that is so supportive of wild ideas, yet so demanding as well.  In my younger days as an engineer I would have cherished that opportunity, now I’m happy to watch the crazy and let others work 80 hour weeks.
Superheavy + Starship the final push to launch commit!

Offline Doom2pro

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Re: SpaceX Texas launch site Discussion and Updates - Thread 11
« Reply #425 on: 06/19/2021 03:23 pm »
The GSE site along the road is still open.  The fence is chain link.  The dunes behind are a good vantage point.  We used to have video shot from standing on cars or in pickup beds.  That's declined.  I'd like to see it restored.

Yes Mary never had a problem getting A+++ shots of the launch site... Just look at her photos, she's very crafty but anyone can do it.

Offline steveleach

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Re: SpaceX Texas launch site Discussion and Updates - Thread 11
« Reply #426 on: 06/19/2021 03:38 pm »
"mechanical arms to lift" -- not "crane on top to lift" or any sort of hoist.  Hmm!
This is by no means the first time this has been hinted at.

SpaceX want really rapid turnaround, and that means rapid stacking even when it is windy. That's pretty tricky with a crane.

If you have arms that can catch, its not much of a stretch to have them lift as well. Also, Musk has compared the tower to "mechazilla".

Offline AstroDave

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Re: SpaceX Texas launch site Discussion and Updates - Thread 11
« Reply #427 on: 06/19/2021 04:43 pm »
Saturday Morning Observation:
  The tower team just unhooked the big crane from tower section #5 and lowered the lifting frame. It appears that the lifting eyes have been left in place at the top of section #5.
  This bewilders me. When they disconnected from section #4, the lifting eyes were unbolted from the tower and lowered with the frame. That seemed smart and a time saver.
  The eyes are large, heavy pieces that require mechanical assistance to move around. With one eyelet, they have to be moved individually. The height of the tower means using the big crane for lifts. It would be a big time saver to lower them while attached to the lifting frame.
  There could be a very good reason for not lowering the eyes yet, but as an outside observer it stands out as a bunch of extra crane cycles if the eyes are still at the top of the tower.

  -First pic is from BC Daily Update video, and shows frame after being disconnected from section #4. Red circle shows a lifting eye attached to frame shackle.
  -Second pic is from LabPadre Lauchpad cam earlier today. After being disconnected from section #5, lifting frame is being lowered without eyes attached. 

Edit (Saturday night):
  Seems that the big winch showed up on short notice, and to help offload it quickly the hook had to be brought down to ground level pronto. Lifting frame has been reflown to top of tower, and we will likely see it come down with eyes attached when the tower team gets to that point.
 
« Last Edit: 06/20/2021 05:59 am by AstroDave »

Online FutureSpaceTourist

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Re: SpaceX Texas launch site Discussion and Updates - Thread 11
« Reply #428 on: 06/19/2021 05:58 pm »
https://twitter.com/obetraveller/status/1406298886927441921

Quote
This just rolled down the road going to #SpaceX launch site

Offline Tangilinear Interjar

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Re: SpaceX Texas launch site Discussion and Updates - Thread 11
« Reply #429 on: 06/19/2021 06:58 pm »
Seeing that drawworks heading into the site got me thinking, if they are going to have to stabilize the mating point as they place the SS on SH then they will probably need 2 of those units. I wonder if we will see it's twin arrive?

Offline chevvie

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Re: SpaceX Texas launch site Discussion and Updates - Thread 11
« Reply #430 on: 06/19/2021 08:23 pm »
The device to stabilize SH could be stationary, so it wouldn't need a winch

Offline Tommyboy

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Re: SpaceX Texas launch site Discussion and Updates - Thread 11
« Reply #431 on: 06/19/2021 09:23 pm »
Seeing that drawworks heading into the site got me thinking, if they are going to have to stabilize the mating point as they place the SS on SH then they will probably need 2 of those units. I wonder if we will see it's twin arrive?
IIRC the twin arrived somewhere in Starbase a few months ago.

Offline Space Junkie

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Re: SpaceX Texas launch site Discussion and Updates - Thread 11
« Reply #432 on: 06/19/2021 11:05 pm »
Saturday Morning Observation:
  The tower team just unhooked the big crane from tower section #5 and lowered the lifting frame. It appears that the lifting eyes have been left in place at the top of section #5.
  This bewilders me. When they disconnected from section #4, the lifting eyes were unbolted from the tower and lowered with the frame. That seemed smart and a time saver.
...
   There could be a very good reason for not lowering the eyes yet, but as an outside observer it stands out as a bunch of extra crane cycles if the eyes are still at the top of the tower.

They have reattached the crane to #5 and they seem to be leaving it like that for the night. Perhaps to keep it more stable during the expected high winds.

Edit: added screenshot
« Last Edit: 06/19/2021 11:13 pm by Space Junkie »

Offline Ben Baley

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Re: SpaceX Texas launch site Discussion and Updates - Thread 11
« Reply #433 on: 06/20/2021 12:11 am »
Seeing that drawworks heading into the site got me thinking, if they are going to have to stabilize the mating point as they place the SS on SH then they will probably need 2 of those units. I wonder if we will see it's twin arrive?
IIRC the twin arrived somewhere in Starbase a few months ago.

The drawworks in question are almost certainly from Diemos.

Soon after Diemos arrived in Brownsville harbour the drawworks from it's drill were removed and brought to Boca Chica. According to Nomadd after being partially disassembled it was brought away to be rebuilt.

At the time there was speculation that it would be reused  for the launch tower, it looks like that was correct.

Judging by SpaceX's actions they've had plans for for this drawworks for some time possibly even before they purchased the semi submersible drilling platforms.

If SpaceX does want to use two of the drawworks for the launch tower they presumably still have the set from Diemos' sister ship Phobos, which is actually farther along because they didn't have to dredge the berth in Pascagoula like they are in Brownsville.

Offline Restless

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Re: SpaceX Texas launch site Discussion and Updates - Thread 11
« Reply #434 on: 06/20/2021 04:15 am »
Two weeks or so ago Boca Chica Gal got some video on three 18-cylinder engine-driven generators brought in on trucks. Has anyone seen them since or know where they will be installed?

My guess is they will go in at the air separation unit area and provide base load power generation. I imagine they would use natural gas from the gas well.

Offline trobbins

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Re: SpaceX Texas launch site Discussion and Updates - Thread 11
« Reply #435 on: 06/20/2021 04:59 am »
5 of those gas gensets are now located and settled side-by-side towards the middle and rear of the gas production facility site.

My guess is they would be redundantly used for specific heavy loading equipment (perhaps compressors) which can't be powered from the grid due to too high a power requirement and/or an ugly load characteristic (PF, distortion, fluctuation, flicker, whatever ...)
« Last Edit: 06/20/2021 05:02 am by trobbins »

Offline vaporcobra

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Re: SpaceX Texas launch site Discussion and Updates - Thread 11
« Reply #436 on: 06/20/2021 05:28 am »
Not entirely sure but it looks like SpaceX might be installing or at least assembling some kind of structure at the base of the tower.

youtube.com/watch?v=sTA0GTgFn5E

Edit: Visible here, too.

twitter.com/cnunezimages/status/1406196271279489027

Looks like the drawworks is going to be installed on this new tower structure.

And now it's getting a cozy little shack built around it :)

Online FutureSpaceTourist

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Re: SpaceX Texas launch site Discussion and Updates - Thread 11
« Reply #437 on: 06/20/2021 05:55 am »
https://twitter.com/rgvaerialphotos/status/1406467261343354880

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🚀Starbase TX, Launch Site.
Progression aerial photography 2018 to 2021

Offline AstroDave

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Re: SpaceX Texas launch site Discussion and Updates - Thread 11
« Reply #438 on: 06/20/2021 05:56 am »
  The common opinion on the forums is that the big winch (drawworks) is repurposed from one of the drilling rigs that SpaceX purchased for pennies on the dollar. Financially, that is a very smart way of using materials and machinery.

  If oil platforms are going to be set up as remote landing platforms, each would need a drawworks on them to operate the tower lifting mechanisms. With the one on the lift tower, it would seem that one of the rigs is a winch short, and will need an eventual replacement winch.

  With the priority of using one of the platform drawworks on the land based tower, are we witnessing a trial run of equipment to validate operational performance before SpaceX commits to a rig layout?
« Last Edit: 06/20/2021 05:58 am by AstroDave »

Offline trobbins

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Re: SpaceX Texas launch site Discussion and Updates - Thread 11
« Reply #439 on: 06/20/2021 07:42 am »
The drawworks from the 2 drilling rigs would need refurbishment anyway, so it seems logical to refurbish and use them over the next 1-2 years whilst the drilling rigs are being refurbished.  Tweaking the requirements and operation of any such winch for this application may well lead to a modified drawworks, and so yes it would be best to refine that on-shore first where costs and downtime are lower.

2nd hand drawworks may become available over the years as off-shore platforms are decommissioned.

 

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