OLS Tank Farm

OLS Tank Farm pictured in mid January 2024 (Credit:RGV Aerial Photography)

### Status

Shell 2, Shell 8 and GSE8 removed and scrapped and more horizontal tanks being installed

## Specifications

### Facility type

Proppellant, nitrogen and water storage area

The orbital launch site (OLS) tank farm is an area at the launch site in Starbase. Unlike the previously built tank farm at the west end of the launch site which has been used for the suborbital testing phase, the orbital launch site tank farm is located at the east end of the launch site and is likely to be used for orbital launches of the Starship test program.

The OLS tank farm is the storage area for liquid methane and liquid oxygen which is used as propellant for Starship and Super Heavy.

Furthermore, liquid nitrogen and water for the deluge system is to be stored at the OLS tank farm.

These liquids were originally all stored in large vertical tanks that were been built by SpaceX at the production site in a procedure that is similar to the stacking of Starship prototypes however after the addition of many large horizontal tanks, scrapping of the original large vertical tanks began on the 6th of January 2024.

In addition to the connection to the suborbital launch site tank farm, the OLS tank farm is connected to the orbital launch mount (OLM) and the launch and integration tower (OLIT/OLS, IT). The booster is fuelled via a quick disconnect system on the OLM and the upper stage (Ship) is fuelled via a quick disconnect arm that is installed on the integration tower.

The construction of the OLS tank farm began with the GSE bunker. The construction and installation of the GSE tanks and shells continued as of September 2021.

A earth berm that has been constructed in April 2021 protects the tank farm from the landing pad.

## Parts and components

The OLS tank farm has several components:

* GSE bunker
* 6 vertical tanks for LOX, LN2 and Water
* LOX and CH4 subcoolers
* Lots of large horizontal tanks
* Delivery pad

### GSE bunker [shelter]

The GSE bunker was the first part of the OLS tank farm that has been built. The building shell has been finished by mid February 2021. The equipment for the bunker has been delivered on 5 February and on the following day with installation following in the same week.

On 03 March 2021, two vertical storage tanks have been installed adjacent (west) to the GSE bunker. Control panels where added on the roof of the bunker on the same day. On 13 March, the equipment and plumbing at the OLS bunker has been inspected with X ray.

In mid June 2021, a CH4 (methane) recondenser has been installed between the two white vertical tanks. Compressed nitrogen tanks were placed on the roof of the GSE bunker.

### Vertical storage tanks (GSE tanks and shells)

Between the GSE bunker and the road there are 6 big vertical tanks that store LOX, LN2 and water. There are smaller, grey GSE tanks in the inside which will hold the liquids. They are covered by cryo tank shells (or GSECs) for insulation. It was long believed that there would be a vacuum between the two tanks for insulation. However, the shells are likely not strong enough to withhold the pressure. Perlite insulation deliveries have since been spotted which will will be expanded in kilns and used to fill the space between the tanks.

Construction of the foundation for this area began early February 2021. Seven circular shaped foundations were added on top of the concrete pad. On those, the smaller GSE tanks (GSE1-8) have been placed. Later, cryo tank shells have been put over these GSE tanks. Both tanks and shells have been constructed by SpaceX: The GSE tank construction followed the procedure of Starship stacking and took place mainly in mid bay. The shells have a bigger diameter and were constructed at the propellant production site.

There were seven GSE tanks and seven cryo tank shells plus one water tank that has been constructed like a shell however these were removed starting with Shell 2 and then Shell 8:

\*Position: R = in the row facing the road, P = in the row facing the pad; 1-4 counted from the east towards west (looking from the road left to right)

GSE4 has been built but later partially scrapped and partially repurposed as GSE4 test tank. Therefore, there is no GSE4 tank at the OLS tank farm. GSE8 has replaced GSE4 and will likely be the final GSE tank as there are only 7 tanks necessary (water is directly stored in the "shell").

### Horizontal CH4 storage tanks

In October 2021, huge methane storage tanks were delivered to the tank farm. SpaceX appeared to have problems on using the previously installed tanks for methane, possibly due to issues with regulatory approval. In November 2022, the berm separating the tank farm and the landing pad began to be removed. In February 2022, 5 additional smaller methane tanks were delivered and installed, as well as a new offloading pad built at the old landing pad. The old vertical CH4 tanks were repurposed to water tanks.

### LOX and CH4 subcoolers

Both on the east and on the west of the 8 storage tanks there are grey horizontal tanks used for sub cooling liquid oxygen and liquid methane. Four out of six LOX subcoolers have been installed at the east side, two out of four (presumably) CH4 subcoolers at the west side.

[history and dates]

### Delivery pad

Between the road and the eight tanks, there is a concrete pad that is used by trucks for propellant delivery. During stacking and construction of the tank farm, the LR11000 crane is positioned on this pad to lift GSE tanks and shells onto the foundations.

## Layout history

* Final layout after repurposing of CH4 tanks to H2O tanks
1/34This section will include annotated grafs/animation.

Naming of the shells has been complicated. When it became clear that shell #2 would become a water tank, it was only called this, and shell #3 became #2. However, later (around 9 August 2021) the system changed due to the official SpaceX names spotted during the roll out of shell #4 (previously thought to be shell #3) again and the water tank got #2 back and in consequence, the other shells had to be adjusted as well.

A video can be found on Funitels Youtube.

* 05 Apr 2021: GSE1 roll out
* 06 Apr 2021: GSE1 placed on stand R2
* 19 Apr 2021: GSE2 roll out
* 19 Apr 2021: GSE2 placed on stand R3
* 28 May 2021: Shell #1 roll out
* 09 June 2021: Water tank/[add: #2] roll out
* 11 June 2021: Water tank/[add: #2] place on P3
* 12 June 2021: Shell #1 placed on R4 (empty)
* 12 July 2021: Shell #2/[add: #3] roll out
* 13 July 2021: Shell #2/[add: #3] placed on P4 (empty)
* 28 July 2021: GSE5 roll out
* 28 July 2021: GSE5 placed on stand R1
* 05 Aug 2021: GSE3 roll out
* 05 Aug 2021: Shell #1 placed on R1 (GSE5)
* 06 Aug 2021: GSE3 put on stand P1
* 09 Aug 2021: Shell #4 roll out
* 11 Aug 2021: GSE6 roll out
* 11 Aug 2021: Shell #4 put on P1 (GSE3)
* 13 Aug 2021: GSE6 put on stand P2
* 31 Aug 2021: GSE7 roll out
* 31 Aug 2021: GSE7 put on stand R4
* 03 Sep 2021: Shell #6 roll out
* 10 Sep 2021: Shell #6 put on R4 (GSE7)
* 17 Sep 2021: Shell #5 roll out
* 24 Sep 2021: Shell #5 put on R2 (GSE1)
* 02 Oct 2021: Shell #3 put on P2 (GSE6)
* 07 Oct 2021: GSE8 roll out
* 07 Oct 2021: GSE8 put on P4
* 18 Oct 2021: Shell #8 roll out
* 18 Oct 2021: Shell #8 put on P4 (GSE8)
* 19 Oct 2021: Shell #7 roll out
* 19 Oct 2021: Shell #7 put on R3 (GSE2)

## Timeline

Complete OLS tank farm timeline since February 2021. GSE and shell stacking is not included. The respective GSE tank timelines can be found in the GSE1-8 articles.

* 05 Feb 2021: Work at the OLS continued after a break due to SN9 launch [add: rebar work for foundation for tank farm, two circular shapes spotted]
* 09 Feb 2021: OLS: Concrete work between the shelter and the road
* 09 Feb 2021: OLS: Steel added to the bunker/shelter to protect Ground supply equipment
* 10 Feb 2021: Simple roof installed at the OLS bunker
* 12 Feb 2021: OLS: Circular concrete foundations started, probably for new fuel farm
* 13 Feb 2021: Work on OLS and suborbital landing pad continued
* 14 Feb 2021: Work on OLS continued (new tank farm and GSE bunker)
* 16 Feb 2021: OLS work continued, dirt work, rebar work continued in circular shape for new tank farm
* 17 Feb 2021: OLS work continued
* 18 Feb 2021: OLS work continued despite bad weather conditions
* 19 Feb 2021: OLS work continued
* 21 Feb 2021: OLS: rebar work [add: extending the concrete pad for the OLS tank farm foundation]
* 22 Feb 2021: OLS: more concrete poured
* 24 Feb 2021: OLS work continued, concrete foundation to be extended eastwards
* 25 Feb 2021: OLS work continued
* 26 Feb 2021: GSE 1 forward dome sleeved [for OLS tank farm?]
* 26 Feb 2021: OLS work continued
* 27 Feb 2021: OLS work continued, tank farm taking shape
* 28 Feb 2021: OLS work continued with both eastward and westward extension (in reference to circular structures north to the bunker); rebars being tied
* 02 March 2021: OLS work continued: rebar laid north of new tank pad
* 06 March 2021: OLS work (tank farm) continued
* 07 March 2021: OLS-Pad A, rebar for a pad at the far east side prepared [add: Power Bay, PB]
* 07 March 2021: OLS work continued, earth wall (blast berm) extended between landing pad and new tank farm
* 09 March 2021: OLS work continued
* 10 March 2021: OLS: Two vertical ropellant storage **tanks erected** at the launch site, right west of the bunker (white tank and black tank)
* 10 March 2021: OLS: Control panels installed on roof of bunker (400 bar storage, GCH4 Recharge)
* 11 March 2021: OLS: much work, also in the very eastern part, two stands nearly ready for concrete
* 13 March 2021: X ray inspection of new tank farm plumbing at OLS stand
* 13 March 2021: OLS work continued
* 15 March 2021: OLS tank farm: concrete poured in circular forms
* 16 March 2021: OLS work continued, piling machine now east of the new tank farm, earth work in the south of the landing pad, work on SoLP ramp continued
* 17 March 2021: OLS: work on the far east area taking up with rebar preparation, as well as piling; formwork removed from first concrete stand
* 18 March 2021: OLS: formwork removed from second concrete stand, piling continued, SoLP ramp work continued
* 20 March 2021: OLS: **new building** started to grow in far east corner [add: PB]
* 21 March 2021: OLS: work continued (rebar...), piling machine now west of new tank farm
* 22 March 2021: OLS: work continued, especially in the very east
* 28 March 2021: OLS: east building work continued (rebar and concrete plates), earth work between landing pad and new tank farm
* 04 Apr 2021: OLS tank farm: third concrete stand to be prepared
* **05 Apr 2021: GSE1 tank rolled out of mid bay, moved to new OL tank farm**
* **06 Apr 2021: GSE1 lifted by Bluto/Tankzilla and placed on concrete stand**
* 06 Apr 2021: OLS: work continued
* 08 Apr 2021: OLS, tank farm: smaller tank painted
* 09 Apr 2021: Launch site: rebar placed for for a new earth wall between landing pad and OLS [?] [old wall has been upgraded]
* 10 Apr 2021: OLS, PB: work continued (rebar), new structures between PB and tank farm
* 10 Apr 2021: OLS, tank farm: preparation of second concrete stand for GSE2 tank (west of first stand)
* 11 Apr 2021: Work on wall between OLS farm and landing pad continued
* 12 Apr 2021: Work on wall between OLS and landing pad continued
* 12 Apr 2021: OLS, tank farm: work at the base of GSE1
* 13 Apr 2021: Bluto/Tankzilla near OLS tank farm
* 14 Apr 2021: Roll-Lift 12000-1 crane near OLS tank farm (behind Bluto)
* 15 Apr 2021: OLS cranes moved, Bluto/Tz still near OL tank farm
* 15 Apr 2021: OL tank farm: work on third stand
* 15 Apr 2021: Work on earth wall between OL tank farm and landing pad continued
* 16 Apr 2021: Dirt berm between OL tankfarm and landing pad growed, compacted with steamroller; excavtor compessed the west facing slope
* 17 Apr 2021: Tankzilla/Bluto still at OLS tank farm
* 18 Apr 2021: OLS tank farm: concrete plates added to third base
* 18 Apr 2021: OLS: pipes coming out of the ground at the far NE corner
* 19 Apr 2021: Blast berm work continued, rebar added on top [?]
* **19 Apr 2021: GSE2 moved out of mid bay, put on transporter, moved to OLS tank farm**
* **19 Apr 2021: Tankzilla/Bluto placed GSE2 on concrete jig adjacent to GSE1**
* 19 Apr 2021: OLS, Bunker; work, scaffolding on south side
* 21 Apr 2021: OLS tank farm: work on fourth jig started with concrete plates
* 22 Apr 2021: GSE tank farm: more foundation work, concrete poured into third foundation
* 22 Apr 2021: Berm reinforcement continued
* 23 Apr 2021: Blast berm work continued
* 25 Apr 2021: OLS Tank farm: Work on the two next concrete foundations continued, seem to be taller thant the two for GSE1 and GSE2
* 26 Apr 2021: OLS tank farm: concrete form being added to fifth foundation; earth work between it and PB
* 26 Apr 2021: OLS berm work continued; more earth work on the east side of it
* 27 Apr 2021: Work between PB and tank farm continued
* 27 Apr 2021: Blast berm work continued
* 28 Apr 2021: OLS work continued
* 28 Apr 2021: Berm work continued
* 28 Apr 2021: The two blue (military grey) tanks to be painted white
* 29 Apr 2021: Berm work continued
* 30 Apr 2021: OLS work continued (eg at tank farm)
* 30 Apr 2021: OLS: the two tanks now painted white
* 30 Apr 2021: Berm work continued
* 02 May 2021: OLS: work between PB, tank farm and hwy 4 continued ("Raptors Loose")
* 02 May 2021: OLS: tank farm work continued (foundations)
* 03 May 2021: OLS: work between PB, tank farm and hwy 4 continued ("Raptors Loose")
* 03 May 2021: OLS tank farm: concrete plates with weird shape for north eastern foundation
* 04 May 2021: OLS, tank farm: progress on foundations; third foundation now ready [?]
* 05 May 2021: OLS tank farm: work on tank foundations continued
* 07 May 2021: OLS tank farm work continued with concrete pouring and other
* 08 May 2021: OLS tank farm work continued
* 08 May 2021: OLS: Work between PB and tank farm, earth piles visible
* 08 May 2021: SpaceX crane GMK7550 moved at launch site (to OLS tank farm)
* 09 May 2021: OLS tank farm: concrete plates removed, two high foundations appear to be ready soon.
* 10 May 2021: OLS tank farm work continued
* 10 May 2021: Manitowoc 12000-1 crane moved to OLS tank farm area
* 11 May 2021: OLS tank farm, concrete plates added to western GSE foundation as well as south easter (high) foundation
* 12 May 2021: OLS tank farm work continued
* 13 May 2021: OLS tank farm work continued, concrete poured at NW foundation
* 14 May 2021: OLS tank farm work continued
* 14 May 2021: OLS: concrete plates for **new** building? between tank farm and berm [add: LOX sub coolers]
* 15 May 2021: OLS work continued, new building foundations between tank farm and berm [add LOX sub coolers]
* 15 May 2021: Crane mats placed north of tank farm
* 15 May 2021: Marcus House: Tank farm speculation: 1 nitrogene tank, 3 oxygene tanks, 3 methane tanks (2 rings shorter, higher concrete foundation), 1 water tank; capability for 2 full stack launches
* 16 May 2021: OLS work between tank farm and PB continued
* 17 May 2021: OLS tank farm: NW foundation concrete plates removed
* 17 May 2021: OLS work continued, earth work between berm and OLS tank farm, as well as between it and PB
* 18 May 2021: OLS tank farm work continued, as well as earth work around (N, E, W) it; SW foundation
* 19 May 2021: OLS work continued, new concrete bars east of farm, earth work north of farm, building work west of farm continued
* 20 May 2021: OLS building east of tank farm concrete poured [add: LOX sub coolers]
* 20 May 2021: GSE equipment (4 greay tanks with 4+ inlets) delivered to launch site [add: LOX sub coolers]
* 22 May 2021: OLS: concrete plates added east of tank farm; concrete plates removed west of tank farm
* 23 May 2021: GSE parts [see May 20, possibly for prop subcooling, vaporization or recondensing] moved, stacked on the new concrete foundations ("pedestals") west of OLS tank farm
* 23 May 2021: OLS: more pipe channels put into place west of OLS tank farm
* 23 May 2021: OLS: valves and piping arrived; steel structures lifted into place at tank farm
* 25 May 2021: OLS: concrete pouring at access to OLS tankfarm as well as south of it, work on tank farm continued (GSE tanks and foundations)
* 26 May 2021: OLS work continued, insulated piping delivered
* 27 May 2021: OLS: rebar laid north of tank farm for new pad and earth work continued (lower level than farm, same as street); concrete work
* 28 May 2021: OLS: work north of tank farm continued
* **28 May 2021: Large grey tank delivered to the launch site, as well as more crane parts (ropes) [add: cryo tank shell #1]**
* 29 May 2021: OLS: concrete poured north of tank farm (rebar laid on May 27-28)
* 29 May 2021: Two large horizontal GSE tanks moved east of tank farm
* 01 June 2021: OLS: Four horizontal GSE tanks placed onto stands east of tank farm (2 more empty foundations) [likely on May 31?]
* 01 June 2021: OLS: Rebar placed north of tank farm for pad extension (west of new pad) and later concrete poured; the two horizontal GSEs (for subcooling propellant) west of tank farms received some piping on top
* 02 June 2021: OLS: Horizontal GSE tanks (east) received some pipes ["Subcoolers, chill LOX and CH4 to near their freezing point to maximize efficiency", NSF]; work at and around the tank farm bases continued; Dirt work near exesting berm
* 03 June 2021: OLS: pipe work; dirt work
* 04 June 2021: OLS: insulated pipes installed around western horizontal GSE tanks; earth work continued
* 04 June 2021: LR11000 moved to pad north of OLS tank farm; possibly awaiting new GSE/shells to arrive
* 05 June 2021: OLS: work around horizontal GSEs continued
* 06 June 2021: Pipes delivered to OLS
* 06 June 2021: OLS work around horizontal GSEs continued
* 07 June 2021: OLS work continued; pipes fitted and removed at east horizontal GSE tanks
* 08 June 2021: Cryo #2 now confirmed as water tank, thus not as a cryo tank shell
* 08 June 2021: OLS: work around PB continued; work on and around horizontal GSEs continued
* **09 June 2021: Water tank [prev. refered to as cryo tank shell #2] for OLS tank farm rolled out [first double roll out, with segment #4 for OLS, IT]**
* 09 June 2021: Load spreader attached to LR11000, water tank attached to it later
* 09 June 2021: OLS: earth work
* 10 June 2021: OLS work continued
* 10 June 2021: Nitrogen vaporizer delivered; nitrogen tanks moved to launch site
* **11 June 2021: Water tank lifted at 9am, lowered at OLS tank farm, just behind GSE2; detached from LR11000**
* 11 June 2021: Parts delivered to OLS
* **12 June 2021: Cryo tank shell [add: shell #1] moved to LR11000, attached to crane and lifted; positioned west of GSE2**
* 12 June 2021: OLS work continued; nitrogen vaporizer moved to tank farm; earth work contineud
* 15 June 2021: OLS: yellow GSE pipes mated; work at tank farm coontinued; concrete work outside OLS on hwy 4
* 18 June 2021: WAI/RGV: CH4 recondenser added between the two white vertical tanks
* 18 June 2021: OLS: New GSE pipes with orange part spotted
* 21 June 2021: OLS tank farm: work continued at GSE tank foundations with attachment pins being added
* 29 June 2021: OLS tank farm contstruction work continued
* 30 June 2021: OLS tank farm work continued, man lifts up and ground piping installed
* 02 July 2021: OLS tank farm only progressing slowly at the moment
* 03 July 2021: OLS tank farm work continued
* 05 July 2021: LR11000 moved towards OLS tank farm
* 06 July 2021: LR11000 at OLS tank farm; moved new grey tank [add: another LOX subcooler or what??]
* 08 July 2021: OLS Tank farm: more pipes have been installed, scaffolding tent removed
* 09 July 2021: OLS tank farm: more pipes installed and moved around near horizontal grey tanks
* 09 July 2021: Cryogenic vaporizor (heat exchanger for regazifying liquified gases stored as liquid under cryogenic temperatures) delivered to launch site
* 10 July 2021: OLS tank farm: more plumbing added
* 11 July 2021: OLS tank farm work continued
* **12 July 2021: Cryo tank shell #2 moved to launch site [the other is a water tank] [add: now #3]**
* **13 July 2021: Cryo tank shell #2 lifted by LR11000 onto an empty tank farm stand (most south-western) [add: now #3]**
* 14 July 2021: Cryo shell load spreader removed from LR11000 and placed on SPMT, returned to build site
* 15 July 2021: OLS tank farm: work at horizontal tanks continued
* 16 July 2021: OLS tank farm progressed with new GSE installed; control panels spotted; white tanks (possibly for compressed helium/nitrogen) moved around
* 17 July 2021: OLS tank farm work continued, pipes moved
* 19 July 2021: Unknown piping delivered to launch site and attached to crane
* 20 July 2021: OLS: New concrete rebar between the two berms towards OLS tank farm
* 21 July 2021: OLS tank farm: GSE2 attached to LR11000
* 21 July 2021: Concrete work between the two berms towards OL tank farm
* 22 July 2021: OLS: Work at new concrete pad continued
* **24 July 2021: Liquid nitrogen delivered to OLS tank farm !!!!**
* 25 July 2021: OLS tank farm: work on GSE1 and GSE2 reinforcements continued
* 25 July 2021: SoLS tank farm venting a lot; WAI suggested possible OLS tank farm GSE tanks test as both are connected
* **28 July 2021: GSE5 transported to OLS by two SPMTs**
* **28 July 2021: GSE5 lifted into place at OLS tank farm by LR11000 right to the east of GSE1**
* 29 July 2021: OLS: concrete work
* 30 July 2021: WAI/RGV: Work on new pads and concrete foundations at OLS with rebar laid (near landing pad, at OLS tank farm and staging area, terminal for trucks for fuel delivery, around/north of OLM)[54]
* 02 Aug 2021: OLS tank farm: Work on GSE1 and GSE2 continued
* 02 Aug 2021: LR11000 moved back to OLS tank farm
* **05 Aug 2021: SN20/S20 and GSE6 [NSF]/GSE3 [LP] rolled out to OLS [apparently it was GSE3, vid 07]**
* **05 Aug 2021: GSE5 sleeved with a cryo shell [the one in north-eastern position] [add: shell #1]**
* 06 Aug 2021: OLS tank farm work continued
* **06 Aug 2021: GSE3[?] lifted over the tank farm and lowered onto OLS tank farm foundation; placed at the most southeastern foundation**
* 06 Aug 2021: GSE3[?] detached from load spreader after being lifted into place by LR11000
* 08 Aug 2021: OLS tank farm continued to be worked on
* **09 Aug 2021: Cryo tank shell #4 LOX rolled out to launch site; SpaceX label: "Outer Shell#4 LOX"; slated for most southeastern GSE tank [GSE3, see August 06]; load spreader and LR11000 attached to the shell**
* 10 Aug 2021: OLS tank farm: work on GSE1 and GSE2 continued
* **11 Aug 2021: GSE6 rolled out to the OLS tank farm; both met near the road block [add: B4 roll back]**
* **11 Aug 2021: OLS tank farm: Cryo shell #4 lifted with LR11000, placed over GSE3 at 1:50pm (southeastern location)**
* **13 Aug 2021: GSE6 lifted by LR11000 and placed west to GSE3/Shell#4**
* 14 Aug 2021: OLS tank farm: more pipes attached for horizontal tanks
* 17 Aug 2021: Berm extension and berm tunnel spotted; possibly on the south side of OLS tank farm [RGV]
* 19 Aug 2021: OLS tank farm: pipe work
* 19 Aug 2021: Cryo delivery (nitrogen) to OLS tank farm at 3.40 pm
* 20 Aug 2021: LR11000 moved to OLS tank farm
* 20 Aug 2021: OLS tank farm: new equipment/pipes installed
* 21 Aug 2021: LR11000 and load spreader attached to cryo tank shell #3 at most southwestern position; to be lifted over GSE6
* 22 Aug 2021: Cryo tank shell #3 remained attached to LR11000
* 24 Aug 2021: OLS tank farm: work on GSE1 continued through upper access hole
* 24 Aug 2021: Insulated plumbing loaded for transport to OLS
* 25 Aug 2021: **GSE4 test tank cryogenic proof test;** According to NSF, the reason was to validate construction methods used for the OLS tank farm
* 25 Aug 2021: OLS tank farm: GSE1 work continued
* 26 Aug 2021: OLS tank farm: more pipes added around propellant subcoolers (the grey horizontal tanks)
* 26 Aug 2021: Cryo tank shell #3 disconnected from LR11000
* 28 Aug 2021: OLS tank farm: Work continued, work on GSE1
* 30 Aug 2021: OLS Tank farm: work around the base
* **31 Aug 2021: GSE7 rolled out to OLS, arrived at OLS tank farm at 10:27 am; load spreader attached (by LR11000) at 12:59 pm; GSE7 lifted at 3:57 pm, touched down at 5 pm next to GSE2**
* 31 Aug 2021: OLS tank farm: GSE1 work continued
* 31 Aug 2021: Plumbing work near the LOX subcoolers (grey horizontal tanks)
* 01 Sep 2021: OLS tank farm: work on LOX subcoolers continued; piping
* 02 Sep 2021: OLS tank farm: GSE cryo shell #1 (most north-eastern) fully filled with Perlite insulation, lines removed [????]
* **03 Sep 2021: Cryo tank shell #6 rolled out to OLS tank farm (to be put over GSE7) and arrived at 9:38 am, now three remaining shells at PPS; load spreader and LR11000 attached to shell #6 at around 10:30 am**
* 04 Sep 2021: Compressed gas tube moved into position at OLS tank farm (bunker area) (typically used for helium or nitrogen storage)
* 04 Sep 2021: OLS tank farm: GSE tank work continued (on GSE1)
* 06 Sep 2021: OLS tank farm: GSE1 work continued (this tank will hold liquid nitrogen, LN2)
* 08 Sep 2021: OLS tank farm: GSE7 work through work platform lifted by LR11000
* 09 Sep 2021: GSE pipes lifted into place at launch site near landing pad [?], pieces of insulated pipes being connected
* 09 Sep 2021: OLS tank farm: work on GSE1, GSE2 and GSE7, where LR11000 lifted a work platform
* 10 Sep 2021: SPMT with a black ring at the OLS tank farm
* **10 Sep 2021: OLS, tank farm: GSE cryo tank shell #6 lifted at 9:54 am, placed over GSE7 at 10:47 am; red protective balloons used during stacking process**
* 13 Sep 2021: OLS tank farm: work continued; GSE1 and GSE2 access hatches still open
* 14 Sep 2021: OLS tank farm: GSE1 access hatch closed after 4 month of work
* 15 Sep 2021: OLS tank farm: some work on GSE bunker
* 16 Sep 2021: OLS tank farm: GSE1 hatch closed [actually earlier], GSE2 hatch closed too
* **17 Sep 2021: Cryo tank shell #5 rolled to the launch site [according to label slated for GSE1, LN2]**
* 18 Sep 2021: OLS tank farm: GSE1 and GSE2 work continued
* 19 Sep 2021: OLS tank farm: LN2 (liquid nitrogen) delivered!! [at least three trucks], cryo fluid moved through the pipes
* 19 Sep 2021: OLS tank farm: GSE2 work continued
* 20 Sep 2021: More LN2 deliveries for OLS tank farm
* 20 Sep 2021: Load spreader from LR11000 attached to cryo tank shell #5 at 10:40am (will be lifted over GSE1)
* **21 Sep 2021: GSE5 LOX tank venting; likely cryo proof test performed with LN2**
* 22 Sep 2021: LN2 deliveries to OLS tank farm continued
* **22 Sep 2021: OLS tank farm venting: testing for first time; GSE5/#1 (LOX) tank tested with nitrogen (cryo proof test?)**
* 22 Sep 2021: PPS: nitrogen production for OLS tank farm [?]
* 23 Sep 2021: LN2 deliveries from PPS to OLS tank farm
* **23 Sep 2021: OLS tank farm: Cryo test at around 9.20 pm**
* **24 Sep 2021: Cryo tank shell #5 lifted at 10.35am and put over GSE1; touched ground at 11.15am**
* **25 Sep 2021: Two horizontal white tanks transported to OLS by two SPMTs; installed at OLS tank farm, south from GSE tanks and shells**
* 26 Sep 2021: LN2 deliveries to OLS tank farm continued
* 26 Sep 2021: LR11000 detached from Shell #5 at OLS tank farm; attached to Shell #3
* 27 Sep 2021: Crew raised in a basket over cryo shells at OLS tank farm
* 27 Sep 2021: LR11000 still attached to shell #3 at OLS tank farm
* 27 Sep 2021: OLS tank farm: LN2 delivery continued; Shell #1 huge venting
* 29 Sep 2021: Ventilation hose coming out of Shell #5, workers inside
* 29 Sep 2021: LN2 delivery to OLS tank farm
* 30 Sep 2021: LN2 delivery to OLS tank farm
* 30 Sep 2021: GSE2 tank work continued; work in shell #5
* 01 Oct 2021: Work inside shells #5 and #6 [?]
* **02 Oct 2021: Shell #3 lifted by LR11000 and placed over GSE6; the most southwestern stand now empty for GSE8; work on GSE2 strengtheners continued**
* 03 Oct 2021: Work at the top of GSE2 tank continued
* 04 Oct 2021: Work via crane basket lifted by LR11000
* 05 Oct 2021: OLS tank farm: Work on GSE2 and ground piping continued; grey horizontal tank lowered into place behind the west LOX subcoolers (near the white tanks that have been added recently)
* 05 Oct 2021: New red structure (two big "hurdles") assembled between OLM and OLS tank farm bunker, look like a temporary structure; a tall one and a smaller one
* 07 Oct 2021: LN2? delivered to OLS tank farm
* 07 Oct 2021: Work on/around the ground piping
* **07 Oct 2021 : GSE8 tank rolled out to OLS tank farm, attached to LR11000 crane, lifted and placed onto final empty stand at the most south-western slot; only two shells now remaining to be rolled out**
* 08 Oct 2021: New equipment lifted into place near the eastern LOX subcoolers; welding work on some pipes
* 09 Oct 2021: More plumbing installed near GSE2; new equipment delivered that looks like the one that has been installed yesterday
* 09 Oct 2021: LR11000 crane began to move away from OLS tank farm, towards landing pad, likely to help with chopstick installation
* 10 Oct 2021: OLS tank farm work continued, especially on piping
* 13 Oct 2021: Work on the pad north of GSE tanks; work on piping continued
* 13 Oct 2021: Perlite delivered and unloaded at OLS tank farm; "Perlite is an insulating layer between the cryo shell and GSE tank". Kilns at the OLS tank farm expand the material into low density insulation
* 14 Oct 2021: More perlite sacks delivered to OLS tank farm; work on OLS tank farm piping continued
* 15 Oct 2021: OLS tank farm work continued
* 15 Oct 2021: CH4 boil-off buffer (horizontal storage tank at OLS tank farm) constantly venting (likely LN2); "CH4 boiloff goes into buffer tanks, gets slowly condensed in Blu, goes back into buffer tanks, and returns to main storage tanks once depressurized." [The\_Denks]
* 17 Oct 2021: LR11000 moved back to OLS tank farm after having lifted one catch arm to the carriage
* 17 Oct 2021: Perlite delivered to OLS tank farm
* **17 Oct 2021: One of the two large tanks (for LCH4) moved from PPS to OLS tank farm**
* **17 Oct 2021: OLS tank farm: First ever LOX delivery; at least 4 tankers**
* **18 Oct 2021: Cryo tank shell #8 CH4 [according to label] moved from PPS to OLS tank farm (9:37-10:41), bumpers installed on the bottom inside of the shell, attached to LR11000, lifted and put over GSE8 on the most south western position**
* 18 Oct 2021: OLS tank farm work continued, especially on newly delivered horizontal tank
* 18 Oct 2021: OLS tank farm: venting from ground pipes
* **19 Oct 2021: CH4 horizontal tank (the second one) and cryo tank shell #7 (final one) rolled out to OLS tank farm**
* **19 Oct 2021: Shell #7 attached to LR11000 and lifted over GSE2 at OLS tank farm; the 8 tanks now complete**
* 21 Oct 2021: Plumbing attached to new horizontal taks at OLS tank farm
* 21 Oct 2021: LR11000 moved from OLS tank farm to landing pad
* 22 Oct 2021: Plumbing work to new horizontal CH4 tanks at OLS tank farm continued
* 24 Oct 2021: LOX delivered to OLS tank farm
* 24 Oct 2021: Piping work towards horizontal tanks continued; now three different pipes visible
* 25 Oct 2021: LOX deliveries; Perlite expansion furnaces and hoppers shown in video for first time
* 27 Oct 2021: Perlite sacks at OLS tank farm for further insulation
* 29 Oct 2021: Plumbing work on horizontal CH4 tanks at OLS tank farm continued
* 31 Oct 2021: LOX deliveries to OLS tank farm; 50th delivery truck of LOX
* 6 Jan 2024: Shell 2 removed and scrapped
* 7 Jan 2024: Shell 8 removed and scrapped

## References

1. ↑ https://www.youtube.com/watch?v=QK9EB48\_2Go