Booster 7 (B7)

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## Flight info

### Outcome

Destroyed (exploded after losing pressure from insufficient FTS detonation)

## Starship development

### See also

B4, B5

This article is about Booster 7. For Test Tank B7.1, see B7.1.
For the full stack, see Starship 7/24 and OFT-1.

Booster 7 (B7) was a Super Heavy booster prototype that took flight for the first near orbital flight attempt In April 20 2023, after booster 4 (B4) was retired. It is the first booster to feature 33 Raptor engines and the first booster to be fitted with Raptor 2 engines. Booster 7 has experienced a long lasting test campaign since its roll out on 31 March 2022 with the first ever static fire on the orbital launch mount occuring only on 09 August 2022. A spin prime test with all 33 engines on 12 July 2022, resulted in an explosion at the OLM as cryogenic fuel evaporated and came in contact with oxygen atmosphere. This resulted in some damage on the orbital launch mount as well as some engines of booster 7.

According to NSF, B7 features several **design changes** as part of SpaceX's iterative R&D approach. Similarly, design changes were spotted on respective Ship prototypes (see: S22, S24)

* Nobs and holes for booster/ship integration are reversed: since S22 and B7, holes are on booster (negative side) and nobs on ship (positive side)
* Thrust section: B3, B4, B5 had three standard 1.8m/6ft ring; B7 thrust section has four 1.4m/4.5ft rings, stringers now extended all the way down; B7+ will support Raptor 2 engines (vs B4 V1.5 engines)
* Header tanks: B5 had a long tube tank on the side of the LOX tank; B7 has new design that is located in the middle and encloses the transfer tube (coaxial tank); new transfer tubes with plate that has three holes (likely for providing landing LOX for center 3 engines)
* Pressurization lines: B4, B5 had 4 lines for each tank; B7 only two per tank
* Aerosurfaces: B7 has new COPVs arrangement (2 vertical columns instead of horizontal ring); covered by "nominal" sections, forming chines (dual purpose: protect COPVs, additional cross sectional surface area - additional cross range, extra drag and reduced approach velocity

Picture of the 33 Raptor engines, each producing 230 metric tons of force:

## History

First parts of booster 7 have been spotted in late October/early November 2021. Stacking work picked up in December 2021 whith much of the LOX section being assembled. In January 2022 the CH4 tank section followed.

A video by Elon Musk shows the installation of the 13 inner engines in August 2022, as well as a glimpse into Mega Bay:

On October 31st, the following scheme was published, showing the remaining path to an orbital flight test:

## Timeline

Open or close the timeline here:

* 05 Oct 2021: Booster [B5/B6?] thrust puck with 13 engine mounts delivered for booster with new 33 engine design (3, 10, 20 vs 1, 8, 20) [add: B7?]
* 06 Oct 2021: New booster thrust puck for 13 engines [B5/B6?] lifted from truck [add: B7]
* 24 Oct 2021: Booster methane transfer tube (downcomer) delivered (two parts) [add Dec: not first one; first one seen early Oct, likely for B7/B8]
* 24 Oct 2021: Booster aft dome lowered onto sleeving stand [B6/B7?]
* 03 Nov 2021: B7? fwd tank #2 spotted
* 13 Nov 2021: Booster aft tank #5 spotted [Label looks like B7]
* 14 Nov 2021: B7 "fwd dome stiffened barrel" 3-ring sleeve spotted
* 27 Nov 2021: Booster common dome section flipped [likely B7?]
* 20 Dec 2021: Booster dommon dome section spotted in high bay [add B7]
* 20 Dec 2021: 33 Raptor thrust/aft dome lifted onto sleeving stand [B7/B8] [add: B7]
* 21 Dec 2021: B7/B8 stacking in high bay began [add: B7]
* 21 Dec 2021: Booster fwd dome attached to crane, lifted onto sleeving stand [likely B7/B8], sleeved with the 3-ring booster fwd dome sleeve
* 21 Dec 2021: B7/B8 aft dome section sleeved (4-ring segement, 2 rings stiffeners; smaller rings [???]; 33 engines) and lifted from sleeving stand; 3-ring booster fwd dome sleeve with 2-rings stiffeners infront of it
* 22 Dec 2021: [B7/B8?] fwd section lifted off sleeving stand, moved into tent 1
* 22 Dec 2021: [B7/B8?] section lifted into high bay for stacking (4-ring with lead-ins)
* 22 Dec 2021: [B7/B8?] 8-ring tank section (LOX and cmn dome) lifted by bridge crane; stacked onto the 4-ring section [add: B7]
* 23 Dec 2021: B7 in high bay 12 rings tall [B7 according to NSF]
* 27 Dec 2021: Aft #4 ring barrel (4-ring with lead-ins) lifted into high bay and stacked with LOX section; now 16 out of 23 rings tall
* 28 Dec 2021: Fwd tank #3 section (3-ring) spotted; cmn dome barrel without dome
* 07 Jan 2022: Aft LOX tank segment #5 (4-ring) moved into high bay
* 07 Jan 2022: B7 LOX tank section lifted in high bay; stacked onto another LOX tank section (now 20 out of 23 rings tall) [vid 08]
* 08 Jan 2022: Rotated in tent
* 12 Jan 2022: Downcomer installed into LOX section beginning at around 19:55
* 14 Jan 2022: Fwd dome section (sleeved) spotted outside highbay
* 15 Jan 2022: 3-ring CH4 tank section (with lead-ins) and fwd dome section moved into high bay
* 17 Jan 2022: Fwd section #3 (3-ring) in high bay; stacked, now 6/13 rings tall
* 18 Jan 2022: CH4 section stacked on a 3-ring section; now 9 of 13 rings tall
* 22 Jan 2022: Aft tank section #4 moved near high bay [?]
* 22 Jan 2022: LCH4 section stacked on another 4-ring section at 1:30am, now 13 out of 13 rings tall
* 23 Jan 2022: CH4 section being welded by a robotic welder in high bay
* 27 Jan 2022: Moved moved around in the high bay
* 01 Feb 2022: **Jig** has been installed on its side
* 02 Feb 2022: Methane section has moved in high bay
* 03 Feb 2022: High bay load spreader connected to B7 methane tank section (no grid fins installed yet to fwd section)
* 05 Feb 2022: Work on fwd section (still attached to bridge crane)
* 13 Feb 2022: Methane section moved from high by into mid bay, LOX section moved inside high bay, relocated
* 16 Feb 2022: B7 [?] aft section (4-ring) spotted [possibly the number is B9, difficult to read]
* 04 March 2022: Grid fins spotted, not painted black (yet?)
* 04 March 2022: Work in high bay
* 05 March 2022: B7 aft section with a new design spotted at tent entrance: **different QD plate and addition of a header tank!!,** rolled out and moved towards high bay
* 05 March 2022: B7 tank section (which one?) lifted and moved in high bay; LOX section stacked onto thrust section, both tanks now fully stacked
* 07 March 2022: Rotated in high bay
* 07 March 2022: **Arrangement of COPVs has changed** from a ring around aft section to two vertical columns
* 09 March 2022: LOX tank lifted onto booster transport sand
* 10 March 2022: CH4 tank section **stacked** onto LOX section at 12:47 am; grid fins still missing
* 11 March 2022: Work through access hole near the weld
* 20 March 2022: Chines installed: aerocovers for the vertical COPVs
* 21 March 2022: B7 grid fins infront of S25 mid-LOX barrel section
* 21 March 2022: Crew work on platform at cmn dome, chine moved
* *22 March 2022: B7.1 barrel sleeve "Aft dome barrel assy" (4-ring) moved towards sleeving stand, apparently for a new test tank*
* 25 March 2022: New booster QD plate delivered and unloaded at launch site for booster QD; B7's QD design is different from B4
* 25 March 2022: Disconnected from high bay crane, moved out of high bay and rolled back in later, moved out again
* 25 March 2022: Moved back into high bay again
* 28 March 2022: Work at fwd dome, as well as around COPV cover
* 29 March 2022: Moved inside high bay, now at its entrance
* 29 March 2022: Structural test stand (can cursher) work continued at launch site, more parts added; configured for 33 engine booster [B7]
* 29 March 2022: Work continued around aft section
* 31 March 2022: **B7 rolled out from high bay to launch site** during early morning road closure, followed by a flood light car; later attached to LR11000X
* 31 March 2022: Work continued around aft section/transport stand ahead of possible lift; according to NSF, the "chines are aerodynamic surfaces that increase the Booster's crossrange when returning to the launch site", they also cover COPVs
* 01 April 2022: Work on aft section/transport stand; detached from LR11000X and load spreader (reason unknown)
* 01 April 2022: LR11000X rolled away from B7 towards OLM, Chopsticks turned out of the way; LR11000X attached to B7 at 20:38
* 02 April 2022: Attached to LR11000X, QD hood on OLM closed, **B7 lifted onto OLM by LR11000X** (not by chopstics as some have expected, and not on structural test stand as others expected), a lot of engine attachment point hardware visible; chopsticks slightly rotated towards booster
* 02 April 2022: Transport stand moved from OLP to booster storage area
* 03 April 2022: B7 attached to booster QD on OLM
* 04 April 2022: Has been disconnected form LR11000X; briefly hooked to it again and unhooked shortly after; B7 connected to booster QD on OLM
* 04 April 2022: Alignment pins from B4 transport stand removed and installed on B7 transport stand
* 04 April 2022: LR11000X moved away from OLM and B7
* 04 April 2022: Vented from fwd dome vents ahead of cryo proof test
* **04 April 2022:** **B7 first cryo proof test**, both tanks fully frosted up at the nearly same pace (CH4 tank frost reaching the top faster); during the filling process, the cmn dome vents constantly vented for short periods; venting stopped for ~1min, then LOX tank filling continued and reached top after some time; detanking started soon after that; later in the night, RCS cmn dome vents and fwd dome vents depress vented and frost/condensation started to reappear shortly after decreasing fully and final full depress vents
* 05 April 2022: [B7] transport stand worked on, especially on the alignment pins; Pins have been removed from B4 stand to B7 stand
* 06 April 2022: B7/OLM worked on; LOX tank hatch installed on B7
* 06 April 2022: [B7] Booster transport stand work continued, especially on alignment pin
* 07 April 2022: LR11000X picked up load spreader, moved to OLM for potential B7 lift
* 08 April 2022: Attached to LR11000X, QD retracted, **destacked from OLM and placed onto structural test stand** [ex can crusher]
* 09 April 2022: Preparations for testing on structural test stand, hooked up to GSE; work platform erected near it
* 10 April 2022: Testing preparation work contiuned via work platform and access hole, GSE lines connected to QD plate
* 11 April 2022: Work around QD as preparation for testing
* 12 April 2022: **B7 ambient pressure test**, (inspected by bird), tank farm active; pressure release through all vents at common and fwd dome
* 13 April 2022: B7 some sort of white felt near its aft section
* 13 April 2022: **B7 ambient proof test (pneumatic test) on structural test stand late night [vid 14]**
* 14 April 2022: Work on QD area
* 14 April 2022: Transport stand (with alignment pins) placed on two SPMTs
* 14 April 2022: **B7 cryo proof test on structural test stand**, possibly also hydraulic thrust test; ice formed on both tanks; in the second round, LOX tank got fully frosty; **during this test, the CH4 transfer tube likely collapsed or was damaged**
* 15 April 2022: LR11000X moved to B7, load spreader still attached
* 15 April 2022: Aft section worked on with an unknown orange part of equipment
* 16 April 2022: Connected to LR11000X
* 17 April 2022: Umbilical disconnected ahead of possibly lifting it off the structural test stand
* 18 April 2022: Prepared for lifting, transport stand prepared, lifted by LR11000X and placed onto transport stand (alignment pin not used); load spreader and crane disconnected from B7; rolled back to production site (reason yet unknown)
* 18 April 2022: B8 moved within high bay by bridge crane; then moved out of high bay, likely to make place for B7
* 18 April 2022: Moved into high bay; attached to bridge crane
* 19 April 2022: Worked on in high bay, especially aft section
* 20 April 2022: Worked on in high bay
* 22 April 2022: In high bay: chine has been opened up
* 23 April 2022: Worked on in high bay; leaked picture from inside LOX tank shows transfer tube scrunched
* 24 April 2022: Worked on at high bay; transfer tube possibly being repaired; hydraulic power unit shown; at 17:16, replacement downcomer segments lifted into B7
* 25 April 2022: Disconnected from bridge crane in high bay; moved into the corner
* 27 April 2022: Work continued in high bay 1
* 29 April 2022: Work in high bay 1 continued
* 01 May 2022: S24 and B7 worked on in high bay 1
* 03 May 2022: Work in high bay 1 continued
* 05 May 2022: Repair work in high bay 1 continued
* 05 May 2022: Counterweights moved to production site by SPMT, possibly for B7 roll out in the near future
* 05 May 2022: LR11000X moved with load spreader, likely for future B7 lift
* 06 May 2022: Moved out high bay 1, prepared for roll out (delayed a bit due to lighning); rolled back shortly
* 06 May 2022: **B7 rolled out to the launch site for the second time** [despite speculation after transfer tube failure] (no grid fins installed yet)
* 06 May 2022: **B7 lifted onto OLM by LR11000X, after chopsticks moved out of the way**
* 07 May 2022: S24 tank section moved from mid bay into high bay 1 [enough space now as B7 has left]
* 07 May 2022: Worked on at OLM; work through LOX access hatch while still hooked to LR11000X; OLM QD hood opened, extended, QD connected; later crane disconnected from B7 (16:30)
* 08 May 2022: Work on OLM continued through LOX tank access hole; work on a raceway
* **09 May 2022:** **B7 cryo proof test on OLM; both tank fully frosted up befor detanking**
* 10 May 2022: LOX hatch reopened, worked inside tank; work on OLM/booster QD
* 11 May 2022: B7/OLM QD reconnected after it has been disconnected
* **11 May 2022:** **B7 cryo proof test on OLM, both tanks fully frosted up; first ever booster/OLM QD retraction test under cryogenic conditions**
* 12 May 2022: OLM/B7 work on "engine" section
* 12 May 2022: Inspection
* 12 May 2022: LR11000X moved to OLS, OLM, connected to B7 via loadspreader
* 13 May 2022: Lifted from OLM onto transport stand by LR11000X
* 14 May 2022: Elon Musk: First orbital flight by B7 and S24, likely with Starlink satellites in an electrically actuated dispenser; B7 120 degrees chines layout make sense due to pressure [?]; B7 will have lighter grid fins
* 15 May 2022: **B7 rolled back to the production site**, entered gate B2 and then high bay 2 [filmed from gate B6], possibly for Raptor engine installation; later attached to bridge crane
* 16 May 2022: Worked on in high bay 2/mega bay
* 17 May 2022: Raptor 2 engines SN21, SN24, SN46, moved into high bay 2 for installation on B7
* 18 May 2022: Raptor engine moved into high bay for installation on B7; antoher one moved from the high bay 2 to tent 1
* 19 May 2022: Work in high bay 2 continued
* 22 May 2022: Raptor 2 engine SN63 converted into Rboost, moved into mega bay for installation on B7
* 24 May 2022: B7 work in high bay 2/megabay continued
* 26 May 2022: Raptor 2 engine SN70 moved into high bay 2/mega bay for installation on B7; R center or R boost equipment still missing
* 31 May 2022: Disconnected from bridge crane in high bay 2 ahead of a potential roll out; engine installation continued
* 01 June 2022: Raptor engine installation continued; first grid fin installed
* 02 June 2022: Second grid fin installed, third later this day
* 03 June 2022: Last grid fin installed
* 05 June 2022: Elon Musk: B7 and S24 still planned to complete orbital flight test
* 07 June 2022: B7 in high bay 2: at least one of the chines have been removed
* 11 June 2022: B7 has all 33 engines installed according to Elon Musk; at least one HPU (hydraulic pressure unit) cover installed
* 12 June 2022: Umbilicals on structural test stand disassembled, where B7 was cryo tested
* 15 June 2022: OLM work continued ahead of planned B7 roll out
* 16 June 2022: **Skinnier chines installed**
* 23 June 2022: **B7 rolled out from mega bay to launch site** after repair work has apparently been completed
* 23 June 2022: Chopsticks lifted before booster B7 arrived, then B7 moved in between the chopsticks; chopsticks closed and moved into position; lifting preparations started; **B7 lifted during the night** [footage continues in vid 24]
* 24 June 2022: Chopsticks disconnected from booster, lifted, moved aside and lowered; Ship QD extended towards B7 (although stabilising arms haven't been reinstalled yet); booster QD on OLM extended towards B7 very slowly
* 25 June 2022: Raptor stand has moved below B7, OLM
* 25 June 2022: Igniters tested (not visible, only audible sign)
* 26 June 2022: Raptor platform under B7/OLM raised, later lowered again; raptor shielding removed for some work on engines, then reinstalled
* 26 June 2022: Raptor igniters tested again on B7/OLM; several more in the afternoon
* 27 June 2022: Raptor maintenance stand removed from under B7/OLM, moved next to the EDOME test tank
* 27 June 2022: Alarm at launch site indicating pad clear ahead of B7 test
* 27 June 2022: **B7 ambient/cryo proof test,** although no condensation/frost formation on the booster, a lot of venting though from tank farm, OLM and booster [cryo??, likely ambient?]
* 28 June 2022: Worked on at the fwd dome area
* 28 June 2022: Venting
* 29 June 2022: B7 worked on at the top and in other parts; also worked on inside through LOX access hole
* 29 June 2022: LOX access hole closed; raptor maintenance platform moved under B7/OLM and work on engine section; later the platform was removed and moved back next to EDOME test tank
* 29 June 2022: **B7 tested and vented (no frost or condensation)**
* 30 June 2022: OLS tank farm/B7 **unknown testing** with road closure, pad clear and tank farm venting
* 01 July 2022: Raptor platform again under B7 and OLM as work on engine section continued
* 02 July 2022: Work on engine/aft section via raptor platform
* 03 July 2022: Worked on; both on engine section and near cmn dome section; engine shields being installed via raptor platform
* 06 July 2022: **B7 ambient proof tested** (no cryo load but venting observed, as well as minor venting at the tank farm), followed by igniter tests
* 06 July 2022: Grid fins tested [vid 07]
* 06 July 2022: Raptor engines worked on; likely shielding installation via raptor platform; later the raptor platform moved away
* 07 July 2022: Engine section work continued
* 07 July 2022: **B7 ambient proof test**; venting from OLS tank farm, OLM and B7 preassure vents [vid 08]
* 07 July 2022: Raptor platform moved under B7/OLM after the test [vid 08]
* 08 July 2022: Work continued
* 08 July 2022: Old raptor platform raised and lowered under OLM/B7
* 09 July 2022: PA at 4:35: "Attention at the orbital pad! Pad is now clearing for Thunderbird."; venting at 6am Chopsticks tested (raised, opened, rotated, lowered while enclosing B7); after that, the ship QD moved in place again
* 09 July 2022: B7 work continued
* 09 July 2022: Raptor platform raised and lowered under B7/OLM
* 09 July 2022: FCC filings: Starlink communication during orbital test via multiple terminals mounted on ship and booster [Michael Baylor]; New flight profile details: booster [B7?] will do either partial return and land in Gulf of Mexico or do a full return with a catch attempt; Ship will reach about 250km altitued, then powered landing in Pacific [Michael Baylor]
* 10 July 2022: Engine work continued on via raptor platfrom and lifts
* 11 July 2022: OLM covers delivered to launch site (16) B7 worked on inside
* 11 July 2022: Raptor platform (old) moved to B7/OLM
* **11 July 2022:** **B7 Spin Prime test** with all 33 engines, resulted in a huge **explosion** and some damage on B7 engine section and likely OLM; also a small **fire** developed around the orbital pad while venting and LOX dumping continued; site inspected by several drones
* 12 July 2022: OLM and B7 inspection; the damage on the OLM legs is visible but likely not significant; other damage spotted: raptor trailer, argon storage, potential engine cover, generator, welding equipment, OLM railings, cabinets, small pipework on the OLIT, chopsticks scaffolding, ventilation hose, lamps, OLT control panels, scorching [Oscar Sparrow]
* 12 July 2022: Raptor platform (old) moved under B7/OLM
* 13 July 2022: Engine section inspection continued via raptor platform, the whole day
* 13 July 2022: SPMTs moved to the launch site, under the booster transport stand, likely for B7 transport back to production site
* 13 July 2022: Single raptor engine moved to launch site; replaced another (outer ring) engine on B7, unknown reason why this was done at the launch site; after that, the raptor platform moved away from B7 and OLM [vid 14]
* 14 July 2022: Chopsticks opened ahead of B7 lifting operation, closed again (possibly to test the new actuator)
* 14 July 2022: Engine shrouds removed from B7
* 14 July 2022: B7 raptor engine moved to production site
* 14 July 2022: Booster QD rectracted, ship QD arm retracted, chopsticks raised, closed in on B7, attached to lift points; **B7 lifted off the OLM by chopsticks**, onto booster transport stand (by the help of the pins!); removed engine shielding visible; then chopsticks disconnected from B7
* 15 July 2022: Bosoter QD adapter connected to B7
* 15 July 2022: **B7 rolled back to the production site** for inspection and repairs after the testing anomaly from July 11th; moved into mega bay/high bay 2
* 15 July 2022: Raptors SN99 and SN76 delivered, possibly as replacement on B7
* 17 July 2022: OLM still charred from B7 explosion; work continued
* 17 July 2022: Inspected in high bay 2/wide bay
* 17 July 2022: First raptor engines started to be removed
* 19 July 2022: Inspections continued in high bay 2/wide bay; 13 engines have now been removed
* 22 July 2022: Raptor engines SN95, SN101, SN102, SN104 delivered to production site; Raptor engines SN48, SN66, SN80, SN81 loaded for leaving [likely from B7]
* 25 July 2922: Raptor engines (SN29, SN68, SN36 identified, fourth one not clear) loaded onto truck; likely from B7
* 01 Aug 2022: Damageed engine shrouds from B7 spotted at launch site
* 01 Aug 2022: B8 worked on in mega bay, B7 isn't visible in mega bay
* 02 Aug 2022: Spotted in mega bay
* 03 Aug 2022: B7 and B8 spotted in mega bay [vid 04]
* 05 Aug 2022: Moved in mega bay
* 05 Aug 2022: **B7 rolled out to launch site;** outer engines installed; arrived at 00:16 on 6 August
* 06 Aug 2022: B7 moved away from the orbital launch site as a lift with chopsticks wasn't possible anymore [6 August]
* 06 Aug 2022: Connected to LR11000X via load spreader [vid 08] Booster QD retracted (hood closed) [vid 08]
* 06 Aug 2022: **B7 lifted onto OLM by LR11000X as chopsticks were broken** [vid 08]
* 08 Aug 2022: LR11000X moved away from OLS to SoLS after having lifted B7
* 08 Aug 2022: OLM and B7 worked on heavily
* **08 Aug 2022:** **B7 spin prime tested twice with one engine (twice the same engine)**
* **09 Aug 2022:** **B7 static fire on OLM with a single engine for about 3 seconds**; a first for both B7 and the OLM [video]
* 10 Aug 2022: Raptor work platform raised under B7/OLM
* 11 Aug 2022: Raptor work platform lowered back down under OLM/B7 at 06:55 [vid 12]
* 11 Aug 2022: Preparation work for more testing [vid 12]
* **11 Aug 2022:** **B7 long duration static fire with a single engine** (likely same engine as on August 09), testing autogenous pressurization; 20 seconds long [video] [vid 12]
* 11 Aug 2022: SPMTs moved to launch site to for B7 transport [vid 12]
* 11 Aug 2022: LR11000X moved towards OLM/B7 [vid 12]
* 12 Aug 2022: Multiple Raptor engines were moved into the mega bay for installation on B7: SN83, SN99, SN26, SN102, SN104, SN72, 5 not identified
* 12 Aug 2022: B7 connected to LR11000X via load spreader; booster Qd retracted; booster trasport stand moved into place; ship QD arm retracted; B7 lifted and placed onto transport stand (engines spotted: SN41, SN53, SN86, SN34, SN85, SN39, SN47, SN44, SN51, SN84, SN49, SN70, SN28, SN42, SN21)
* 12 Aug 2022: **B7 rolled back to the production site, rolled into mega bay**
* 15 Aug 2022: Spotted in mega bay, where it is getting its 13 inner engines installed for further testing; engines worked on (literally)
* 15 Aug 2022: OLM work continued after B7 left
* 16 Aug 2022: Work in mega bay continued
* 17 Aug 2022: B7 and B8 (hidden) in mega bay, worked on
* 18 Aug 2022: Worked on in mega bay
* 19 Aug 2022: Worked on in mega bay, workers near grid fins
* 22 Aug 2022: B7 in mega bay; inner engines now installed; work continued
* 23 Aug 2022: Disconnected from bridge crane; Ship QD arm retracted on OLIT; Chopsticks raised ahead of B7 stacking; booster QD lines purged
* 23 Aug 2022: **B7 rolled back to the OLS with all 33 engines installed,** much of the engine covers is still missing and will need to be added ahead of a flight test (Raptor engines SN70, SN49, SN84, SN51, SN44, SN63 identified); rolled to the OLS and between the chopsticks arm
* 23 Aug 2022: B7 and OLM prepared for lifting; connected to chopsticks and lifted slightly; stabilizers attached, guide pins on stand retracted; **lifted**, rotated and lowered onto OLM
* 23 Aug 2022: OLM booster QD attached to B7 at 22:48, raptor service platform raised under OLM [vid 23]
* 24 Aug 2022: OLM raptor platform lifted under OLM/B7; lowered again
* 24 Aug 2022: OLM pad area cleared of any debris ahead of B7 testing
* 24 Aug 2022: B7 ignitor test
* 25 Aug 2022: Chopsticks detached from B7, opened and raised; damaged scaffolding on OLIT during lift
* **25 Aug 2022:** **B7 spin prime tested twice on OLM with likely 3 engines**
* 26 Aug 2022: Raptor work platform lifted under OLM/B7
* 26 Aug 2022: OLM work continued after yesterdays testing; raptor work platform has been raised under B7
* 29 Aug 2022: Raptor work platform lowered under B7/OLM at around 6 am
* **29 Aug 2022:** **B7 cryo testing;** no static fire test despite overpressure notice
* 30 Aug 2022: Raptor work platform lifted under B7/OLM
* 31 Aug 2022: Raptor maintenance platform lowered from B7 and moved to the landing pad area
* **31 Aug 2022:** **B7 static fire test** with multiple engines for the first time on OLM for 5-6 seconds; possibly 3 engines intended and 1-2 aborted **S24 cryo tested on Pad A**; possibly aborted static fire test
* 01 Sep 2022: One raptor engine removed (engine that wasn't tested yesterday)
* 02 Sep 2022: New raptor engine delivered at 01:31 am, installed; raptor platform lowered at 5:22 am
* 02 Sep 2022: Raptor platform raised under OLM/B7
* 07 Sep 2022: Raptor work platform lowered from OLM/B7 at 20:13
* **08 Sep 2022:** **B7 spin prime test of multiple engines**
* 09 Sep 2022: Raptor maintenance platform under OLM/B7
* 09 Sep 2022: Inspected at the top of fwd dome
* 12 Sep 2022: Raptor work platform lowered under B7/OLM [vid 13]
* 12 Sep 2022: Chopsticks raised ahead of B7 testing [vid 13]
* **12 Sep 2022:** **B7 spin prime tested,** possibly all 33 engines (unconfirmed) [vid 13]
* 13 Sep 2022: Raptor work platform raised at 01:58 under OLM/B7
* **16 Sep 2022:** **B7 spin prime tested** (seven engines)
* 19 Sep 2022: Chopsticks raised ahead of B7 testing [vid 20]
* **19 Sep 2022:** **B7 spin prim and static fire tested with seven engines;** additionally, the grid fins moved ahead of the test; some damage to the OLM legs (paint?)
* 19 Sep 2022: Transport stand moved to launch site (possibly for B7 roll back) [vid 20]
* 20 Sep 2022: Raptor engines SN49 (boost), SN82 (center) removed; later moved to build site
* 20 Sep 2022: Raptor boost engine SN82 lifted under OLM for installation
* 20 Sep 2022: Chopsticks lifted and connected to B7 [vid 21]
* 20 Sep 2022: Transport stand lifting pins raised; chopsticks lifted; B7 lift aborted [vid 21]
* 21 Sep 2022: B7/OLM QD retracted
* 21 Sep 2022: Transport stand pins raised again, chopstick stabilizer arms engaged, B7 lifted off OLM onto transport stand
* 21 Sep 2022: **B7 transported back to production site**, into mega bay for upgrades
* 26 Sep 2022: Hooked up to both bridge cranes in mega bay at around 1 am
* 06 Oct 2022: Moved inside mega bay [vid 07]
* 07 Oct 2022: Chopsticks rotated and raised ahead of B7 arrival **B7 rolled out to pad**, between Chopsticks; chopsticks closed and lifting points latched into position; view on upgrades on engine shielding [pic Starship Gazer]; 20 covers still missing, indicating that OLM work hasn't finished yet; installation expected after 33 engine SF
* 07 Oct 2022: Road closed between 11:44 and 13:00; B7 lift aborted
* [to be updated from General Timeline]

## Testing Campaign

Overview, without full stack tests (see: Starship 7/24):

### 31 March 2022 - Roll out

In the early morning of March 31, 2022, SpaceX rolled out B7 from the high bay to the orbital launch site very quickly, although its grid fins haven't been installed yet. After roll out, SpaceX LR11000 crane attached to the booster holding pins, for which they didn't need man lifts at the lifting point, thus progressing faster than previously. Howerver, they still didn't use the chopsticks as it was expected by some in the community. Crews accessed the forward dome through the grid fin holes.

Timeline according to LabPadre, NSF and Starship Gazer:

* 05:20 B7 rolled out of high bay
* 06:10-15 Entered hwy 4
* 07:25 B7 turned into Launch Site at gate D2
* 07:35 Arrived under LR11000X
* 08:05-17 Attached to Lr11000X load spreader bar

### 04 April 2022 - Cryo proof test

**B7 first cryo proof test**, both tanks **fully** frosted up at the nearly same pace (CH4 tank frost reaching the top faster); during the filling process, the cmn dome vents constantly vented for short periods; venting stopped for ~1min, then LOX tank filling continued and reached top after some time; detanking started soon after that; later in the night, RCS cmn dome vents and fwd dome vents depress vented and frost/condensation started to reappear shortly after decreasing fully and final full depress vents

Timeline according to LabPadre discord:

* 08:05 LR11000X disconnected from B7
* 10:08 Road closed
* 10:30 PA: "Attention at the pad, Pad clear in 1 hour for booster 7 operations"
* 11:25 Chopsticks raised
* 12:13 Pad clear
* 12:33 OLM venting
* 12:58 B7 venting (depress?)
* 14:06 Ship QD arm vented
* 14:57 Frost started to form on CH4 tank
* 15:18 Frost started to form on LOX tank
* 16:34 Both tanks fully frosty (filled with LN2)
* 17:28 Detanking started

### 08 April 2022 - Lift

The LR11000X crane lifted B7 off the OLM onto the structural test stand at the cryo station. Timeline according to LabPadre discord:

* 09:30 LR11000X connected to B7 via load spreader
* 09:47 Booster QD retracted
* 09:57 PA: "Attention all personnel at the orbital pad, we are now clearing the orbital pad for booster 7 lift"
* 11:36 Lift off OLM started
* 12:15 Touched down on structural test stand

### 12 April 2022 - Ambient proof test

Timeline according to LabPadre discord:

* 09:50 Road closed
* 14:40 Pad closed
* 15:05 Venting near can crusher
* 17:12 A lot of venting on B7
* 19:19 Road opened

### 13 April 2022 - Ambient proof test

The pad was not cleared. Timeline according to LabPadre discord:

* 17:39 Road closed
* 20:13 B7 vent at bottom
* 22:14 Depress
* 22:44 Road opened

### 14 April 2022 - Cryo proof test

B7 cryo proof test on structural test stand, possibly also hydraulic thrust test; ice formed on both tanks; in the second round, LOX tank got fully frosty; during this test, the CH4 transfer tube likely collapsed or was damaged. Timeline according to LabPadre discord:

* 11:22 Road closed
* 13:15 Pad cleared
* 14:20 Frost formed on LOX tank (LN2 load)
* 14:45 Frost formed on CH4 tank; frost on LOX tank several rings high
* 17:05 Frost started to decrease
* 17:55 Depress
* 21:51 Road opened

### 18 April 2022 - Lift and roll back

Timeline according to LabPadre discord:

* 01:54 Transport stand moved near B7
* 09:08 Lift started
* 09:30 Placed on transport stand
* 13:36 LR11000X detached from B7
* 14:36 B7 started to move
* 15:05 Entered hwy 4 (road closed)
* 16:06 Arrived at production site
* 19:56 Arrived inside high bay
* 21:32 Attached to high bay bridge crane

### 06 May 2022 - Roll out and lift

Timeline according to LabPadre discord:

* 5 May 20:20 B7 moved to the center of high bay
* 06:18 Left high bay
* 06:30 Moved back into high bay
* 07:56 Left high bay again
* 08:13 Entered hwy 4
* 09:26 Arrived at launch site
* 10:45 LR11000X attached to B7
* 14:33 Lift started
* 15:05 Placed on the OLM
* ---07 May---
* 14:45? Booster QD connected
* 16:30 LR11000X disconnected

### 09 May 2022 - Cryo proof test

Both tanks fully frosted up. Timeline according to LabPadre (not verified):

* 09:02 Road closed
* 09:31:40 PA: "Attention Starbase, entire pad clear in 30 minutes, all non essential personnel please begin exiting the pad now."
* 15:01 Pad cleared, OLS tank farm venting seen
* 15:16 OLM table venting
* 16:06 Cryo load began
* 16:33 CH4 tank frost began
* 18:15 Detank started
* 20:40 Cars to pad
* 21:15 Road opened

### 11 May 2022 - Cryo proof test

Both tanks fully frosted up, and for the first time, a full speed booster QD retraction test was conducted during partial cryo load.

Timeline according to LabPadre (not verified):

* 09:30 QD retracted
* 09:40 QD reconnected autonomously
* 10:23 Road closed
* 11:00:49 PA: "Attention Starbase, entire pad clear in 1 hour, all personnel begin exiting the pad and remove all vehicles form Highway 4."
* 12:24 Pad cleared
* 12:31 OLS tank farm venting picked up
* 12:47 OLM table venting
* 13:40 Cryo loading began
* 13:50 Frost on LOX tank began to form
* 14:06 Frost on CH4 tank began to form
* 15:17 Both tanks fully filled with LN2, fully frosty
* 15:49 Detank started
* 19:52:17 First ever full speed QD retraction test under partial cryo load
* 21:04 Road opened

### 13-14 May 2022 - Lift and Roll back

Timeline according to LabPadre discord:

* 01:38 Transport stand moved next to OLM
* 07:10 Booster QD retracted
* 07:56 Lift started
* 08:26 Placed on transport stand
* 09:49 LR11000X detached from B7
* 20:27 Load spreader picked up by mega bay bridge crane for the first time
* --
* 07:21 Started to move
* 07:57 Entered hwy 4
* 08:55 Arrived at production site
* 09:50 Entered mega bay

### 23-24 June 2022 - Roll out and lift

Timeline according to LabPadre discord:

* 10:40 B7 exited mega bay
* 11:07 Entered hwy 4
* 12:04 B7 arrived at launch site
* 12:23 Ship QD arm retracted, chopsticks started to rise
* 13:30 B7 rolled between chopsticks
* 14:40 Road closed
* 16:51 Pad cleared
* 17:42 Cars to pad
* 21:26 Pad cleared again
* 22:21 B7 slightly lifted
* 22:43 Stabilizer pins on chopsticks attached to B7
* 23:06 HPU (stand) stabilizer pins disconnected, lift started
* 00:00 B7 touched down on OLM
* 00:10 Bottom pins in
* 00:59 Clamps deployed
* 01:30 Road opened
* 01:36 Chopsticks opened
* 02:37 Chopsticks lowered back down; ship QD arm extended back out
* 06:11 Booster QD extended and attached to B7

### 27 June 2022 - Unknown Testing (Cryo/ambient)

Timeline according to LabPadre discord:

* 12:57 Road closed
* 15:16 Pad cleared
* 19:25 Engine chill vents
* 21:56 Road opened

During that testing, the OLM was chilled, but no frost formed on B7. However, there was venting from the engine section as well as from the depress vents.

### 29 June 2022 - Unknown Testing (OLS tank farm)

Timeline according to LabPadre discord:

* 16:07 Road closed
* 17:24 Pad cleared
* 18:26 OLS tank farm venting
* 22:11 Road opened

Some minor vents on B7 spotted.

### 30 June 2022 - Unknown Testing (OLS tank farm) and B4 roll back

Timeline according to LabPadre discord:

* 11:07 B4 started to move
* 11:30 PA: "Attention Starbase personnel, Pad closure in 1.5 hours"
* 11:33 B4 left launch site
* 11:41 or earlier Road closed
* 12:38 Arrived at build site
* 13:18 B4 arrived at rocket garden at the place where B5 was before
* 13:58 Pad cleared
* 14:29 OLS tank farm ventin (CH4 tanks vent stack)
* 17:23 Cars to pad
* 20:50 Road opened

### 6 July 2022 - Ambient proof test

Road and pad was cleared during this test; no cryo load but venting observed, as well as minor venting at the tank farm, followed by igniter tests.

### 7 July 2022 - Ambient proof test

Timeline according to LabPadre discord:

* 09:26 PA: Pad clear in 30 minutes
* 10:07 Road closed
* 12:11 Pad clear
* 12:25 Tank farm venting
* 15:12 Cars to pad
* 19:01 Pad clear
* 21:53 Cars to pad
* 21:58 Road opened

### 12 July 2022 - Spin prime test #1 and explosion

Timeline according to LabPadre discord [to be completed with info from lifestreams]:

* 07:41 PA: "Attention to the pad, all non essential to pad off today, please exit the pad at this time, pad field is off limit"; all vehicles were cleared underneath S24 and B7 and moved to the middle of the launch site
* 10:03 Road closed
* 10:14 PA: "Attention all personnel, pad closure in 15 minutes. All personnel please begin exiting the pad at this time."
* 10:50 Some venting at the CH4 tank side of the OLS tank farm
* 11:30 Pad cleared, OLS tank farm started to vent
* 12:46 Cars to pad
* 12:53 Pad cleared again
* 13:17 Cars to pad for second time
* 13:44 Pad cleared again
* 15:35 Frost line on LOX tank appeared
* 15:52 Frost line formed on B7 CH4 tank
* 16:20:14 Spin prime/start test of 33 enginesand explosion
* 17:26 Venting
* 17:27 Smoke appeared around the pad
* 18:46 Detanking
* 20:03 Cars to pad
* 21:29 Depress
* 22:53 Road opened
* Pad remained closed during the night for safety

According to Joey Roulette, citing a spokesman, the FAA is in "close contact with SpaceX as the company looks into the fire that occurred". No formal FAA mishap investigation was started because the explosion wasn't part of a scheduled launch campaign.

At first, Elon Musk was not aware of the testing anomaly and tweeted "Yes. Booster engine testing." However, after being briefed by his teams, tweeted: "Yeah, actually not good. Team is assessing damage." Elon Musk explained the cause of the explosion with evaporated cryogenic fuel, that creates a risky mix in the partially oxygen atmosphere: "Cryogenic fuel is an added challenge, as it evaporates to create fuel-air explosion risk in a partially oxygen atmosphere like Earth. That said, we have a lot of sensors to detect this. More later."

Asked, whether itwould "be possible to maybe burn/evaporate the leaks caused before ignition", Elon Musk said: "That is one of the things we will be doing going forward. This particular issue, however, was specific to the engine spin start test (Raptor has a complex start sequence). Going forward, we won’t do a spin start test with all 33 engines at once." After the test, a lot of work was done on the OLM in order to redirect the engine chill vent. A first damage assessment by Elon Musk was: "Base of the vehicle seems ok by flashlight. I was just out there about an hour ago. We shut down the pad for the night for safety. Will know more in the morning." Later, he assessed the damage as follows: "Was just up in the booster propulsion section. Damage appears to be minor, but we need to inspect all the engines. Best to do this in the high [mega] bay" With this statement, he announced that booster 7 will need to be rolled back to the production site for inspections and potential engine replacements.

Video by Elon Musk:

### 14 July 2022 - Roll back

Timeline according to LabPadre discord:

* 10:50-53 Booster transport stand stabilization pins extended and retracted
* 11:41 PA: "Attention Starbase personnel, pad closure in 15 minutes. Please begin clearing the pad now and move all vehicles from Highway 4"
* 11:58 Road closed
* 11:58 PA: Pad clear in 30 minutes
* 13:08 Booster QD disconnected
* 13:19 Chopstick began to rise
* 13:21 QD arm retracted
* 13:32 Chopsticks rose to top of B7, closed in
* 13:52 Stabilization arms closed in
* 15:13 Pad clear
* 15:38 B7 lifted off OLM by chopsticks
* 16:57 Touched down on transport stand, secured by clamps
* 17:46 Cars to pad
* 19:56:10 PA: "Attention Starbase personnel, spin prime test happening on S24 at Pad B, loud venting happening" [ignitor test???]
* 20:08 Chopsticks released from B7, descending
* 21:24 B7 started to move
* 22:16 B7 entered hwy 4
* 23:07 SoLS tank farm venting
* 23:13 Recondenser venting
* 23:32 Arrived at production site
* 00:39 Entered mega bay
* 01:23 Road opened [July 15]

### 06 August 2022 - Lift onto OLM by LR11000X

After roll out late night on August 05, SpaceX lifted B7 onto the OLM with the outer engines installed. Due to a failure of the chopsticks ahead of the lifting operations, they had to use the LR11000X crane.

Timeline according to LabPadre discord:

* 04:37 Chopsticks fully lowered
* 09:12 LR11000X connected to B7 via load spreader
* 11:57 Lifted by LR11000X
* 13:14 B7 touched down on OLM, now being secured
* 16:40 LR11000X disconnected
* 19:37 Booster QD connected to B7

### 08 August 2022 - Spin Prime tests on B7 (#2, #3) and S24

Timeline according to LabPadre discord:

* 10:30 Raptor platform lowered below OLM
* 11:46 Road closed
* 12:23 Raptor platform moved away from OLS
* 12:42 Road closed again
* 14:14 Pad clear
* 15:41 OLS tank farm started venting
* 16:00 OLM vent started
* 16:08 SoLS tank farm active
* 16:43 Frost formed
* 16:50:20 Engine chill vent on S24
* 17:06 Chopsticks raised
* 17:10:34 S24 spin prime tested
* 18:00:13 S24 spin prime tested again
* 18:04 S24 depress vents
* --
* 18:49 OLM venting
* 21:01:35 B7 spin prime tested
* 21:26:39 B7 spin prime tested again; with one engine
* 21:28 B7 depress vent
* 22:11-13 B7 huge depress vents from cmn and fwd domes
* 22:22 Cars to pad
* 22:40 Road opened

### 09 August 2022 - Static Fire tests on B7 (#1) and S24

SpaceX conducted a single engine static fire on B7, a first both for the booster and the orbital launch mount. They also static fired two engines on S24 later that day.

Timeline according to LabPadre Discord:

* 10:45 Road closed
* 13:49:30 and 13:49:57 water deluge test on SoLS pad B for S24 testing
* 14:32 Pad cleared
* 17:07 Prop load started on B7, OLM venting
* 17:10 Siren reported
* 17:12:20 Side venting (engine chill) on OLM started
* 17:24:54 **B7 Static fire of a single engine for the first time on the OLM for about 3 seconds**, a picture can be found here
* 17:28 Depress vents
* --
* 19:20 SoLS tank farm active
* 19:36 Propellant load began on S24
* 19:44 Chopsticks lowered
* 20:07:09 Engine chill vent started
* 20:08 Siren reported
* 20:18:25 Water deluge system activated
* 20:18:53 **S24 Static fire of 2 engines for about 3 seconds**; a video can be found here
* 20:23 Depress vents
* 21:52 Cars to pad
* 22:05 Road opened

### 11 August 2022 - Long duration Static Fire #2

On 11 August 2022, SpaceX conducted the first ever long duration static fire both of B7 and on the OLM. It lasted for about 20 seconds and used autogenous pressurization.

Testing timeline accordin to LabPadre discord:

* 03:52 PA: "Attention on the Pad, Orbital Launch Mount clear in 10 minutes"
* 10:13 PA: "Attention Starbase personnel, pad closure in 45 minutes. Please begin clearing the pad now and remove all vehicles from Highway 4"
* 12:01 Road closed
* 12:18 Chopsticks raised ahead of testing
* 13:27 Pad cleared; CH4 side venting
* 13:46 OLS tank farm and OLM venting
* 14:38 Siren and engine chill vent from OLM
* 14:48 Static fire: "Full duration" of 20 seconds according to SpaceX with autogenous pressurization according to Elon Musk
* 14:52 Depress vents
* 16:17 Chopsticks being lowered again
* 16:24 Cars to pad
* 16:51 Road opened

A NSF video can be found here.

Picture by Elon Musk:

### 12 August 2022 - Roll back

Timeline according to LabPadre discord:

* 4:58 LR11000 picked up the load spreader
* 07:02 Transport stand moved from landing pad to OLM
* 07:13 LR11000 and load spreader connected to B7
* 09:20 Booster QD retracted from B7
* 12:04 B7 lifted off the OLM
* 12:36 Lowered onto transport stand
* 15:29 Unhooked from LR11000X
* 16:59 Entered hwy 4
* 18:03 Turned into production site
* 19:55 Entered wide bay

Picture by Elon Musk:

### 23 August 2022 - Roll out

On August 23, B7 rolled back to the OLS with all 33 engines installed. Much of the engine covers are still missing and will need to be added ahead of a flight test. Raptor engines SN70, SN49, SN84, SN51, SN44, SN63 were identified. B7 rolled to the OLS and between the chopsticks arm and was then lifted onto the OLM.

Timeline according to LabPadre discord:

* ~1am B7 disconnected from mega bay bridge crane, SPMTs rolled into mega bay; booster QD opened and ship QD arm retracted
* 02:54 Two main fill/drain fuel and oxidizer valves on booster QD were purged
* 03:28 Chopsticks began to raise
* 05:02 B7 on the move in mega bay
* 05:16 B7 left mega bay
* 05:49 B7 turned into hwy 4
* 07:36 B7 entered launch site at main gate
* 10:03 Chopsticks closing on B7
* 11:30 Road closed
* 12:47 Guiding pins on booster transport stand inserted into position on B7
* 16:08 Chopsticks started to lift B7
* 16:26 Stabilization arms on chopsticks have closed on B7, transport stand guiding pins retracted
* 17:15 B7 placed on OLM
* 19:46 Road opened

Picture from Elon Musk:

### 25 August 2022 - Spin prime testing #4

Testing timeline according to NSF and LabPadre streams

* Overpressure notice delivered to residents of Boca Chica
* 10:12 Road closed
* 10:13 OLS berm ground vent started
* 10:25 Chopsticks began to disconnect from B7, opened, raised; Scaffolding on the OLIT was damaged as chopsticks were being raised (probably forgot to dismantle)
* ~10:40 OLS tank farm horizontal CH4 tanks vent stack venting started
* 11:47 OLS tank farm road side vent started
* 11:55 CH4 subcoolers getting frosty
* 12:01 Venting and activity on CH4 subcooler site picking up
* 12:06 OLM vent started
* 12:17 Pad clear; LOX side spooled up as well [exact time unknown]
* 12:40 OLM vent increased
* 13:05 OLM vent stopped, possibly prop load; CH4 condensators spooled up a lot
* 13:13 OLM vent started again
* 13:14 OLIT/OLM engine chill? vent
* 13:20 OLM vent started again
* 13:24:37 OLM cover vent as indication for testing
* 13:25:12 **B7 Spin prime test** likely of 3 engines; 2 engines first, followed by third; secondary spin prime? at 13:25:19; possibly with gimballing
* 13:28 Some venting from the aft power unit
* 13:33 Engine puffs spotted
* 13:47 Large puffs, nearly a sprin prime?
* 13:55 Engine chill vent at OLIT base active again (likely earlier)
* 14:00:27 OLM vent below the covers (an indicator for testing)
* 14:01:02 **B7 Spin prime test** with 3 engines (likely the same onews, possibly one from each ring)
* 14:08 Engine chill lines less frosty [likely for outer engines that are connected to mount]
* 14:00-14:15 Thermal imagery shows massive increase LOX or LN2? in LOX tank, although no frost has formed yet
* 19:20:45 Larger puffs
* 19:24 Small frost ring spotted between stringers
* 14:28 OLIT base engine chill vent active again
* 14:53 Large booster depress vent; OLM vent started again
* 14:54 CH4 condensers started to vent a lot
* 14:59 CH4 recondenser on
* 15:35 Depress vents on fwd dome and cmn dome
* 15:36 SoLS tank farm recondenser on; but rest of tank farm not yet active
* 15:42 SoLS ground vent started
* 15:50 OLM vent started
* 16:05 B7.1 entered HWY 4 after rolling out of mid bay
* 16:28 B7.1 arrived at road block, but turned into side road as road was still closed
* 16:50 SoLS ground vent started again
* 16:51 SoLS tank farm spooling up
* 17:06 Recondenser started at SoLS
* 17:12 Slight condensation started on LOX tank - cryo load started
* 17:27 Frost appearing on S24
* 17:27:53 Engine chill vent on S24
* 17:42:46 Water deluge system on pad B turned on
* 17:42:53 **S24 Spin prime test**
* 17:46 OLM vent active again; as well as OLS tank farm street vent
* 17:54 Huge S24 depress vent
* 18:00 Enginge puffs from B7
* 19:05 Cars to pad
* 19:22 Road opened

### 29 August 2022 - Testing

No static fire although overpressure notice issued.

Testing timeline according to LabPadre and NSF streams:

* 12:13 Road closed
* 12:32 Grover and B7 transport stand moved to build site
* 13:15 Chopsticks raised above B7
* 14:05 Road closed again after completion of transport stand move
* 15:36 Pad cleared
* 15:37 CH4 subcoolers began to frost
* 15:55 CH4 subcoolers area vent increased
* 16:32 LOX subcoolers venting started
* 16:54 OLM venting fast (starting to cool down the lines ahead of fuelling)
* 17:19 Temperatures falling according to thermal imagery
* 17:23 OLM venting increased
* 17:36 Road side vent started at OLS tank farm (possibly as indication that prop load is imminent)
* 17:44 OLS ground vent
* 18:00 OLM venting increased a lot
* 18:04 OLM vent stopped
* 18:05 LOX side spooled up
* 18:06 CH4 subcoolers spooled up (top backwards vent), CH4 load started
* 18:08 Chill line on OLM frosting
* 18:10 CH4 kettleboilers frosting
* 18:13 LOX tank frost line growing (predator cam)
* 18:14:00 OLIT base engine chill vent started
* 18:16 CH4 pumps turnded off
* 18:17 OLM vent restarted - purging the lines
* 18:17 Clear forst line visible on LOX tank
* 18:18 Puffs from engine section; chill vent at OLIT base decreased a bit
* 18:27 Engine bell puffs increased; engine chill at OLIT decreased more
* 18:40 Frost on CH4 subcoolers decreased
* 18:43 Engine chill vent at OLIT base started again
* 19:14 Cmn dome depress vent (not yet depress); OLM vent started up intensly again
* 19:18 OLM vent decreased
* 19:19 Recondenser started
* 19:23 CH4 subcoolers turned on for a short time
* 20:18 Cars to pad
* 20:27 Road opened

### 31 August 2022 - Static fire test #3

During this test, SpaceX static fired B7 with multiple engines for 5-6 seconds with a staggered start-up. It is believed that they intended to ignite 3 engines. However, likely 1 or even 2 engines aborted after start-up. Likely, more tests were intended with S24, but they didn't reach any point further in the timeline than engine chill. A few days later, on September 02, SpaceX replaced a Raptor Vacuum engine which likely didn't reach expected performance.

Testing timeline according to NSF and LabPadre streams:

* 06:55 PA: "Pad clear in one hour"
* ?? Tank farm activity
* 08:02 Road closed
* 09:08 Worker task force entered at Gate D3
* 09:20 Workers left launch site
* 09:22 Pad clear
* 09:24 OLM venting LN2 for chilldown
* 09:49 CH4 subcoolers slowly getting frosty, OLM venting increased
* 10:17 CH4 subcoolers top vent spooled up - fuelling likely started
* 10:19 OLM vent stopped
* 10:20 OLM vent resumed (likely not yet fuelling)
* 10:23 OLS road side vent started
* 10:26 OLM vent stopped
* 09:25 CH4 subcoolers filly frosty
* 10:30 OLM vent started again
* 10:32 Huge depress vent on booster 7 [likely recycle)
* 10:36 CH4 subcooler backside vent stopped
* 10:37 CH4 subcooler backside vent restarted
* 10:53 OLM vent has stopped again
* 10:57 Engine chill line on OLM is getting cold according to thermal imagery, subcooler backwards vent spooled up a lot
* 11:03 Thermal imagery shows LOX tank being filled
* 11:04 Frost appearing on LOX tank
* 11:05 Engine chill vent on near OLIT base
* 11:06:19 OLM vent restarted
* 11:11 Engine bell puffs spotted [LOX chill?]
* 11:30 Engine chill vent nearly fully stopped
* 11:55 Depress vent on B7; OLM vent spooled up again as well as horizontal CH4 subcooler vent
* 11:59 OLM vent stopped; Recondenser started
* 12:07 CH4 subcoolers started to vent agian
* 12:10 Frost on booster started to decrease
* 12:13 OLM restarted
* 12:33 Recondenser stopped
* 12:38 Engine chill lines getting more frosty again, OLM vent stopped
* 12:41 Engine chill vent near OLIT base started again
* 12:45 OLIT base engine chill vent stopped
* 12:48 Frost starting to grow again very fast
* 12:51 OLM vent restarted a lot; retanking
* 12:53 Siren reported
* 12:56 Larger engine puffs increased
* 13:03:04 OLM small cover puff
* **13:03:36 Static fire on B7 with multiple engines for about 6 seconds; center, then inner, then outer engine staggered start of 3 engines likely; possibly the 3rd engine aborted, but it is unclear**
* 13:08 Cmn dome depress vent
* 13:14 Recondenser started, engine chill lines defrosted
* 13:26 Robotic dog spotted
* 13:33 Huge depress event from cmn and fwd domes
* 13:55 Engine chill line frosted up
* ---
* 14:10 SoLS ground vent; tank farm spooled up
* 14:22 Small recondenser puffs
* 14:29 Prop load on S24 LOX tank, some minor condensation formed
* 14:40 Most SoLS tank farm activity stopped; just minor puffs from tank farm/recondenser
* 14:46 Frost ring started on S24
* 15:38 Recondenser started to spool up
* 15:47 SoLS tank farm increased a lot
* 16:08:49 Engine chill vent started on S24
* 16.15 Drone spotted at SoLS
* 16:15:02 Header tank vent
* 16:18 Engine chill pulses began
* 16:27 Huge depress vent on S24
* 16:38 SoLS vent stack started signalling end of testing
* 19:13 Road opened

### 08 September 2022 - B7 spin prime test #5 and S24 static fire

SpaceX conducted a multiple engine Spin prim test on booster 7 as well as a full 6-engine static fire with ship 24 for about 6-7 seconds which lead to a grass fire to develop.

Testing timeline according to LabPadre and NSF streams:

* Overpressure notice issued to resident
* 07:59 Road closes
* 09:20-27 Chopsticks raised
* 09:23 Pad clear
* 09:56 CH4 side on OLS tank farm started up (vent stack)
* 10:01 CH4 subcooler side spooled up
* 10:04 LOX side spooled up
* 10:19 CH4 subcoolers getting frosty from the bottom, venting around them increased
* 10:21 Lots of venting from LOX subcoolers
* 10:27 or earlier OLM venting indicating chilling the lines
* 11:08 CH4 subcoolers (tank part) fully frosted
* 11:14 Road side vent started
* 11:23 Some SoLS tank farm activity from tall black tank to the north
* 11:35 OLM vent spooled down
* 11:49 CH4 subcoolers top part spooled up, indicating prop load on B7
* 11:52 Engine chill lines frosting, CH4 subcooler top fully frosty
* 11:52 OLLIT base area vent (engine chill)
* 11:55 Frost line on B7 appeared
* 12:01 CH4 subcoolers top vent spooled down somewhat, frost on LOX tank nearly one ring high
* 12:03 OLM vent restarted
* 12:04 Engine puffs spotted
* 12:14:24 OLM cover vent
* 12:14:45 Another smaller OLM vent nearby
* **12:14:58-15:01 B7 multiple engine spin prime test**; staggered: 2+1+2+1+1+2 (at least 9 engines counted, then unclear)
* 12:17 Venting from B4 aft ring spotted on both sides of the QD (new booster vent?); depress vent
* 12:20 OLM vent spooled up for half a minute
* 12:22 CH4 vent stack started again
* 12:23 or earlier SoLS tank farm active
* 12:24 OLS CH4 subcoolers top started again
* 12:25 or earlier OLS tank farm recondenser started
* 12:36 LOX tank frost began to decrease
* 13:35 SoLS tank farm activity stopped
* 14:27 SoLS grass vent started
* 14:28 SoLS tank farm active
* 14:30 Minor recondenser puffs started
* 14:48 Frost/condensation ring started
* 15:30 Frost over 1 ring up
* 15:43 Recondenser puffs started again
* 15:48 SoLS tank farm spooling up
* 15:55:51 S24 engine chill; frost at least 2 rings up
* 16:19 Siren
* 16:30:23 Water deluge system turned on
* 16:30:40-47 **Static fire of 6 engines (confirmed by SpaceX), for about 6 seconds; several tiles lost**
* 16:32 Depress vents
* 16:33 **Grass fire** at SoLS pad B, also qute far away, outside the fence between road and SoLS tank farm; another fire seen in around the middle of the launch site (landing pad or so), possibly a dumpster fire near Pad A
* 16:43 LOX tank upper parts condensated, Ship depressing
* 16:45 Tank farm venting unusually, likely some sort of safing mode
* 16:50 Fire spreading south west from the pad, same fire as during a Starhopper test
* 17:03 OLM venting started
* 17:07 Fire trucks and brush truck arrived at road block
* 17:40 Small fire still burning
* 18:22-30 Chopsticks lowered
* 20:27 S24 depress vent
* 20:37 Cars to pad
* 21:37 Firemen working to contain the fire; backfires set to prevent the blace from spreading beyond the backfire line

NSF video of the static fire here. SpaceX tweet with picture of the static fire here.

### 12 September 2022 - Spin prime test #6

Testing timeline according to NSF and LabPadre streams:

* 08:02 Road closed
* 08:53 CH4 tanks vent stack started venting
* 09:01 Minor LOX side venting started
* 09:10 Pad cleared
* 09:13 CH4 side started to vent around subcoolers
* 09:34 CH4 side venting increase a lot
* 09:45 Lox side venting increased a lot
* 10:05 Small OLM vent started
* 10:16 CH4 subcoolers frost started to form
* 10:20 OLM vent increased
* 10:32 OLM vent decreased
* 10:40 OLM vent increased a lot
* 10:43 OLS tank farm road side vent started
* 10:50 OLM vent stopped, CH4 subcoolers top started to vent - propelland load started
* 10:55 CH4 subcoolers top fully frosty
* 11:02 or earlier engine chill vent near OLIT base
* 11:02 Engine puffs spotted, frost ring started to rise; OLM vent restarted
* 11:18 Detank
* 11:27 CH4 subcoolers top frost started to decrease
* 12:19 OLM vent stopped (new cycle)
* 14:04 OLM vent restarted
* 14:27 CH4 tanks vent stack started venting again
* 14:30 CH4 subcoolers area started venting a lot
* 14:45 CH4 subcoolers fully frosty again
* 15:03 OLM vent stopped
* 15:07 Propellant load (CH4 subcoolers top started venting)
* 15:12 CH4 subcoolers top fully frosty, engine chill vent started near OLIT base
* 15:14 LOX tank frost ring appearing again
* 15:19 Engine puffs spotted
* 15:22 OLM vent restarted
* 15:24 Road side venting a lot
* 15:34:24 OLM side/cover vent
* 15:34:57 **Spin prime test of several engines (staggered start, more than 9)**
* 15:36-37 Huge depress vents from cmn and fwd domes
* 15:50 CH4 subcoolers top frost disappeared
* 16:56 Cars to pad
* 17:08 Road opened
* 20:23 LOX tank chilled according to thermal imagery
* 00:03 Orbital pad opened with B7 fully detanked

### 16 September 2022 - Spin prime test #7

Testing timeline according to LabPadre discord:

* 08:13 Road closed
* 09:23 Pad cleared
* 10:28 OLM vent stopped
* 10:29 Propellant load started (CH4 subcoolers top vent); LOX side very active as well
* 10:36 OLIT base engine chill vent started
* 10:43 New vent spotted at the OLM railing, OLM vent restarted
* 10:45 Engine chill (Engine puffs)
* 11:21:27 **Spin prime test,** likely 7 engines
* 11:22 Depress
* 11:30 Detanking started, frost line decreasing
* 12:41 Chopsticks lowered
* 15:03 Cars to pad
* 15:08 Road opened
* 18:50 Chopsticks raised

### 19 September 2022 - Spin prime test #8; Static fire test #4

According to Elon Musk, the "Chamber pressure looked good on all 7 engines" during the static fire. He later announced that B7 would return to the mega bay for upgrades and B8 would instead roll out to the pad:

> "Booster 7 now returns to high bay for robustness upgrades & booster 8 moves to pad for testing. Next big test is probably full stack wet dress rehearsal, then 33 engine firing in a few weeks."
>
>

Testing timeline according to LabPadre and NSF streams:

* Overpressure notice issued to local residents
* 08:09 Road closed
* 08:36 OLS tank farm started some venting
* 08:37 CH4 tanks vent stack started venting
* 08:46 Chopsticks slightly raised ahead of testing
* 09:15 CH4 sub cooler site started up
* 09:17 Pad cleared
* 09:25 OLM venting started, CH4 subcoolers frost started
* 10:14 OLM vent stopped;Prop loading started (CH4 subcooler top vent)
* 10:21 OLIT base engine chill vent started
* 10:23 Frost ring started to form
* 10:28 Engine puffs started (LOX chilling; no OLM railing vent spotted), OLM vent restarted
* 10:54:09 OLM side vent
* 10:54:41 **Spin prime test** (staggered) of several, perhaps 7 engines (Some speculation about gimballing, but likely not true)
* 11:05 Depress vent
* 11:08 Recondenser on, detanking
* 11:11 CH4 subcoolers top vent started to vent again
* 11:16 New OLM "mustache" vent
* 11:22 Depress vent; OLM vent restarted
* --
* MSIB (NOTMAR) issued for today; perhaps they waited on spin prime outcome
* 11:58 OLM vent stopped
* 11:59 LOX side very active, looks like prop load
* 12:02 CH4 engine chill vent (near OLIT base from NSF camera view)
* 12:04 CH4 subcooler top vent increased a lot
* 12:09 Frost ring started to rise again
* 12:12 OLM vent restarted
* 12:14 **Elon Musk announced a 7 engine static fire**; this also confirmed recent 7 engine spin prime test
* 12:17 Siren reported
* 12:37 Hydraulic pressure unit cover on booster venting
* 12:46:22 OLM side vent
* 12:46:55-02 **Static fire of 7 Raptor engines for about 6-7 seconds**, with the same sequence on 2 previous spin prime tests; OLM legs looked quite roasty
* 12:55 Grass fire started between OLP and sea
* 13:00 Elon Musk: "Chamber pressure looked good on all 7 engines"
* 13:10 Depress vent
* 13:37 Large depress vent on both tanks
* 13:51 Tesla arrived at road block
* 14:00 Cars started to line up at road block
* 14:08 Cars to pad, road remained closed
* 14:56 Road opened

Elon Musk video of the static fire: here

LabPadre video of the static fire: here

NSF video of the static fire: here

### Full Stack and Testing I

#### 20-21 September 2022 - Lift and Roll back

On 21 September 2022, booster 7 rolled back to the production site "for robustness upgrades" . According to Elon Musk, B7 is still planned to be the booster for the first orbital test flight: "That’s the plan. We’re taking a little risk there, as engine isolation was done as retrofit, so not as good as on Booster 9." He also provided an estimate on when this might happen:

> Late next month maybe, but November seems highly likely. We will have two boosters & ships ready for orbital flight by then, with full stack production at roughly one every two months.
>
>

Timeline according to LabPadre discord:

* 12:55 Transport stand moved near OLM
* 14:13 Road closed
* 14:19 PA: Pad closure in 30 minutes
* 16:29 Ship QD arm moved away
* 16:55 Booster QD disconnected from B7
* 20:41 Chopsticks moved
* 23:00 Road opened
* 23:52 OLM booster QD reconnected
* 09:10 OLM booster QD retracted from B7
* 09:13 Road closed
* 10:26 Chopsticks took the load of B7
* 10:40 Stabilization arms closed on B7 after being slightly lifted up
* 10:51 Lifting started
* 11:10 Stabilization pins extended into B7
* 11:53 B7 on transport stand
* 12:13 Road opened
* 15:08 Started to move
* 15:37 Left launch site; road closed
* 16:54 Arrived at production site

#### 07 October 2022 - Roll out and aborted lift

Timeline according to LabPadre discord:

* 05:59 Entered Hwy 4
* 08:05 Arrived at launch site
* 09:54 Moved between chopsticks
* 10:43 Chopsticks raised
* 11:42 Chopsticks closed and main lifting points latched into position
* 11:44 Road closed
* 13:00 Road opened

#### 10 October 2022 - Lifting

Timeline according to LabPadre discord:

* 07:59 Road closed
* 08:16 Ship QD arm swung away
* 08:57 Transport stand stabilization pins inserted into B7
* 10:10 Lift started with chopsticks
* 10:56 Transport stand stabilisers disengaged, chopsticks pins engaged; lift continued
* 12:32 Lift completed, being secured
* 15:24 Road opened
* 16:33 Transport stand moved away

#### 11 October 2022 - Stacking

See Starship 7/24 article

On 11 October 2022, Ship 24 was stacked onto B7 after a failed attempt the night before that also damaged several tiles on Ship 24. The issue likely was linked to the previously installed felt that should soften the impact of a booster on the chopsicks during a catch attempt. Before lifting, SpaceX made some short term fixes on the chopsticks.

### 10 November 2022 - Spin Prime Test #9

A overpressure notice was issued to residents. However, only a multiple engine spin prime test and FIREX system testing was done.

Timeline according to LabPadre and NSF streams:

* 08:18 CH4 subcoolers started to frost
* 08:56 Road closed
* 09:06 CH4 side venting started to pick up
* 09:08-11 QD arm swung away
* 09:11 OLS tank farm road side vent started
* 09:13 Pad cleared
* 09:13 chopsticks slightly lifted
* 09:26 Chopsticks arrived above B7
* 09:49-52 QD arm swung back towards B7 after chopsticks moved up and fully opened
* 10:40 Depress vent
* 10:49 B7 grid fin testing
* 11:09 OLM venting started
* 11:45 LOX side spooled up
* 12:56 CH4 subcoolers top vent started
* 13:05 Engine chill vent started
* 13:08 LOX tank frost started
* 13:21:20 OLM puff vent
* 13:21:41 FIREX system started up
* 13:21:54 **Spin prime test** of multiple engines with a staggered startup sequence
* 13:24 Depress vents; OLM vent increased
* 13:35 Frost on LOX tank decreasing
* 13:59:28-49 FIREX system testing
* 14:01 Tank farm activity spooled up
* 14:38 Tank farm activity decreased; OLM still venting
* 15:37 Depress vents, QD arm moved towards B7
* 15:51 B7 CH4 tank depress venting
* 15:53 LOX subcoolers restarted
* 15:55 LOX lines towards OLP frosting/venting
* 16:38 Cars to pad
* 16:58 Road opened

### 14 November 2022 - Static Fire

SpaceX conducted a "full test duration of 14 engines". The test went well, according to Musk.

Timeline according to LabPadre and NSF lifestreams:

* 08:25 CH4 subcoolers getting frosty
* 08:55 Road closed
* 09:05 CH4 side spooled up
* 09:54 Pad cleared
* 10:59 OLM venting
* 12:08 CH4 subcoolers top started to vent
* 12:16 Engine chill vent on OLIT base
* 12:18 Frost on LOX tank started to appear
* 12:31 Siren
* 12:50:25 OLM side vent puff
* 12:50:43 FIREX started
* **12:51:01-10 14 engine static fire**
* 12:56 Depress vent on both tanks
* 13:08 Tank started to defrost
* 13:14 Unknown OLM venting started
* 15:16 Cars to pad
* 15:45 Road opened

According to Elon Musk, "Next test is ~20 sec firing with max oxygen fill to test autogenous pressurization, possibly one more static fire, then orbital launch attempt".

### 28 November 2022 - Scrubbed testing

For today's testing, SpaceX issued a overpressure notice to residents.

Timeline according to NSF and LabPadre streams:

* 08:28 Road closed
* 08:35 CH4 Subcoolers getting frosty
* 09:00 CH4 Subcoolers fully frosty
* 09:05 CH4 side spooling up
* 09:10 Pad cleared
* 13:03 Cars to pad
* 14:13 Pad cleared again
* 14:25 OLS CH4 side got active again
* 15:00 or earlier OLM vent started
* 15:46 OLM vent stopped
* 16:28 OLM vent restarted
* 16:32 B7 depress vent (1 min)
* 16:39 Depress vent
* 18:02 Cars to pad
* 18:05 Road opened

### 29 November 2022 - Static Fire

For today's 13 second long static fire test of 11 engines, B7's LOX tank was completely loaded, likely in order to test autogenous pressurization. Meanwhile, the CH4 tank was only loaded about 1 ring high (plus transfer tube). The FIREX system had to activate a second time, in order to extinguish a fire that developed around the insulated cryo-tubing on the OLM.

Testing timeline according to NSF and LabPadre streams:

* 07:45 CH4 subcoolers slowly got frosty
* 08:02 Road closed
* 08:05 or earlier OLM vent (not visible due to fog)
* 08:36 CH4 side slowly becoming active
* 09:01 CH4 activity increased a lot
* 9:20 Pad cleared, OLM vent has stopped for a few minutes(time unclear due to fog)
* 09:40 LOX side venting spooled up a lot, OLM vent increased a bit sporadically
* 10:53 Cars to pad
* 11:04 Pad cleared again, OLM vent restarted some longer break
* 12:00 CH4 subcoolers defrosted
* 12:07 OLM vent increased a lot
* 12:26 OLM vent stopped
* 12:28 LOX side activity increased
* 12:30 CH4 subcoolers frosty again
* 12:33 LOX load started
* 13:03 CH4 subcoolers top vents spooled up - CH4 load started
* 13:19 OLIT base engine chill vent
* 13:25 Siren
* 13:41 OLM vent restarted
* 13:41:42 OLM side puff
* 13:41:56 FIREX system spooled up
* 13:42:16-29 Static fire (13 seconds, 11 engines)
* 14:03 Frost on LOX tank started to decrease
* 14:05 CH4 subcooler top started to defrost
* 14:27 Detanking
* 18:10 Road opened

### 02 December 2022 - Lift off OLM

Timeline according to LabPadre discord:

* 09:58 Booster QD has been retraced, pad closeout announced
* 10:07 Road closed
* 11:02 Chopsticks moved upwards
* 12:10 Chopsticks closed on B7
* 12:34 Lift has started
* 12:52 Transport stand stabilization pins inserted into B7
* 13:20 Touched down on transport stand and hold down clamps extended
* 14:07 Road opened
* 15:38 Chopsticks released B7

### 03 December 2022 - Roll back

SpaceX rolled back B7 to the production site for more upgrades, ahead of final testing and possibly launching it. Timeline according to LabPadre discord:

* 11:44 B7 started moving towards exit of launch site
* 12:11 Entered Hwy 4
* 13:42 Arrived at production site
* 14:06 Entered wide bay

### 08 January 2022 - Roll out

After signs for roll out slowly increasing, SpaceX crews finally rolled out booster 7 back out to the launch site after final upgrades. Timeline according to LabPadre discord:

* 15:11 B7 started to roll out wide bay
* 15:34 Entered hwy 4
* 16:24 Ship QD arm retracted and chopsticks raised
* 16:42 B7 entered launch site
* 16:59 Moved between chopsticks
* 17:04 Moved back again

### 09 January 2022 - Lift onto OLM

Early morning, SpaceX lifted booster 7 onto the OLM ahead of fully stacking S24 onto it. Timeline according to LabPadre discord:

* 02:13 Road closed
* 02:32 Pad cleared
* 03:46 Lift started
* 06:30 Road opened
* 06:59 B7 has touched down on OLM, chopsticks disconnected
* 08:29 Transport stand moved away
* 10:01 Booster QD connected

### 09 February 2023 - 33 Engine Static Fire Attempt

Booster 7 conducted a static fire intending to ignite all 33 engines, but "Team turned off 1 engine just before start & 1 stopped itself, so 31 engines fired overall." However, Elon Musk confirmed, that this is "still enough engines to reach orbit". Also, SpaceX called it a "full duration" static fire. This test signified the most engines fired simultaneously, surpassing the N1 rocket by one engine. The legs were a bit charred after the test, which is usual after static fire tests.

Later, SpaceX added: "Super Heavy Booster 7 completed a full duration static fire test of 31 Raptor engines, producing 7.9 million lbf of thrust (~3,600 metric tons) – less than half of the booster’s capability" However, this also confirmed, that the firing didn't set a new record in terms of most thurst produced by any rocket ever, although it is surpassing Falcon Heavy and Saturn 1.

On 11th February, Elon Musk added: "This test is at ~50% throttle. Launch attempt next month will be at ~90%."

```

```

Timeline according to LabPadre and NSF streams:

* 00:23 - Chopsticks lifted
* 07:22 - FIREX test
* 07:27 - FIREX test
* 08:00 - CH4 subcoolers started to frost up
* 08:02 - Road closed
* Before 08:31 - LOX subcoolers venting
* 08:40 - LOX side venting decreased
* 08:50 LOX side venting stopped
* 08:53 - Pad cleared
* 09:26 - Gid fins tested
* 11:22:55 - OLM vent, starts and stops until 13:52
* 11:22 - LOX side started up again, CH4 subcoolers getting fully frosty
* 11:36-38 - New OLM vent spotted next to main OLM vent
* 11:37 - CH4 subcooler top vent started
* 11:40-45 - Venting on whole launch site spooled down
* 11:46 - SpaceX inspecting the pad with a drone
* 11:51-57 - OLS tank farm rode side vent started
* 12:12:59 - OLM vent restarted
* 12:36 - LOX subcooler venting restarted
* 12:50 - OLM vent and LOX side nearly completely stopped, some venting on CH4 side
* 13:06:38 - OLM vent restarted, followed by LOX side venting
* 13:19 - OLM vent stopped
* 13:43:40 - OLM vent restarted, again followed by LOX side venting
* 13:41:56 - CH4 subcoolers top vent started
* 13:52 - Propellant load has started, indicated by ceasing of the OLM vent
* 13:58 - Frost on LOX tank started to form
* 14:00 - Frost on CH4 tank started to form
* 14:03 - Engine chill vent
* 14:09 - CH4 load is complete after nearly 2.5-3 rings filled, CH4 subcoolers stopped venting
* 14:13 - LOX tank filled around 6 rings
* 14:30 - LOX tank filled around 11 rings
* 14:44 - OLM north side double vent started (location of the old puff vent)
* 14:45 - LOX tank filled around 16 rings
* 14:56:30 - OLM main vent restarted
* 14:56 - LOX/Propellant load is complete, LOX subcooler venting stopped
* 15:13:25 - FIREX started
* **15:13:52 - STATIC FIRE, 31 engines**
* 15:16:27 - Depress vent, indicates detanking and safing; frost on CH4 tank already started to recede
* 16:20 - CH4 tank frost nearly completely disappeared, LOX tank frost slowly starting to recede
* 18:00-02 - Large depress vent
* 19:17 - Road opened

### 17 February 2022 - Spin Prime Test and QD tests

Timeline according to NSF and LabPadre streams:

* 07:30 Chopsticks moved up
* 08:04 Road closed
* 08:36 Pad cleared
* 08:56 or earlier LOX side active and subcoolers frosty
* 09:07 LOX side venting stopped
* 10:02 Vertical CH4 vent stack started venting, CH4 subcoolers slowly started to frost
* 11:14 CH4 subcooler top vents spooled up
* 11:25 CH4 subcooler top vents stopped
* **11:51:01 Booster/OLM QD fast T-0 retraction test**; attached 30 seconds later
* 12:27 LOX side venting started, and stopped,
* 12:31 OLM vent started
* 12:36 LOX side venting started again
* 13:06 CH4 subcoolers top vent started, OLM vent stopped
* 13:11 LOX tank frost started to form
* 13:17 CH4 subcooler top vent stopped
* 13:19 OLM vent restarted; LOX tank filled around three rings
* 13:20 OLM vent stopped
* 13:37:22 Panel vent on OLM (with noise)
* **13:37:58 Spin prime test of single engine**
* 13:41 OLM vent started
* 13:52 OLM vent stopped, on/off over next few minutes
* 14:10 Frost on LOX tank slowly decreasing
* 14:16 Retraction test
* 14:15:57 QD noise
* **14:16:32 QD retraction test**
* 14:17:03-21 QD attached to B7 again
* 14:49 Engine puffs from engines

### 10 March 2023 - Lifting off OLM

Timeline according to LabPadre and NSF streams:

* 06:41 Booster QD retracted
* 07:50 Road closed
* 08:29 Ship QD arm started to retract
* 08:40 Chopsticks started to raise
* 08:53 Chopsticks reached top of B7, followed by rotation towards B7
* 09:00 Arms started to open
* 09:05 Chopsticks started to lower around B7
* 09:08 Chopsticks started to close in on B7
* 12:29-30 Lifted
* 12:36-43 Rotated very slowly
* 12:45-49 Lowered
* 12:50-52 Rotated further to get to transport stand
* 12;54 Lifting pins extended and lowered further
* 12:56-57 Lowered futher, lifting points connected
* 13:21 Chopsticks stabilizing pins disengaged
* 13:24-28 Lowered

### 29 March 2023 - Lifting onto OLM

After the lift was postponed due to heavy rain on March 28th, SpaceX attempted to lift B7 onto the OLM on March 20th. They encountered issues with the hold down clamps on the transport stand. Engines identified: SN34, SN97, SN53, SN41, SN+2, SN46, SN105

Timeline according toLabPadre and NSF streams and discord:

* 04:46-53 Chopsticks raised
* 05:30-06:00 B7 rolled to OLM
* 06:00 Chopsticks started to lower towards B7
* 07:26-34 Chopsticks closed; 07:53 closed in further
* 07:56 Chopsticks raised slightly
* 10:25 Road closed
* 11:00 Clamp problems seem to be resolved, inspection of alignment pins on transport stand
* 11:25 Ship QD moved further away
* 11:42 Transport stand alignment pins raised and lowered again
* 11:48 Booster transport stand alignment pins extended and inserted to B7
* 12:53 OLM alignment pins inspected
* 13:08 Workers left OLM
* 13:25 Chopsticks stabiliser pins moved towards B7, not yet fully connected
* 13:27 Pad clear alarm
* 14:02 B7 lifted very slightly
* 14:13 Hold down clamps slowly releasing B7
* **14:32:19 Lift started**
* 14:35 Stopped
* 14:46-47 Pins retracted from B7
* 14:50-51 Pins lowered
* 14:52-53 Lift continued, not yet final hight
* 14:54-55 Swinging towads OLM
* 14:56-59 Lifted to rotation hight
* 15:04-10 B7 rotating towards OLM
* 15:11-12 Lowered quite fast; drone inspecting the whole operation
* 15:15 B7 moved to the right
* 15:18 Slight swinging visible on NSF stream
* 15:18-21 Moved down further; shielding not visible anymore
* 15:24-25 Lowered further
* 15:27-29 OLM guiding pins extended towards B7
* 15:31 Lowered a bit more [?]

### 3 April 2023 - Propellant Load Test

Both tanks were completely filled during the test. Timeline according to LabPadre and NSF streams:

* 07:20-31 Chopsticks raised up to top of B7
* 07:39-08:15 Chopsticks turned over to B7 and lowered around it
* 07:46 OLS tank farm venting towards road
* 08:00 Road closed
* 08:35 Pad cleared
* 08:41 FIREX test, followed by grid fin test
* 08:58 or earlier: venting on LOX site near berm
* 09:37 LOX side venting started and increased a lot over next 10 minutes
* 09:45 CH4 vertical stack venting started
* 10:19 OLM vent (spotted from south view) started
* 10:20 CH4 subcoolers top vent started (and started to get frosty [!!])
* 10:35 Both CH4 subcoolers frosty
* 10:40 Frost on subcoolers started to disappear again
* 10:51 OLM vent increased
* 11:05-09 Howling sound
* 11:09 CH4 tank frost started to form; cryo load started
* 11:28 OLM vent stopped; only small remaining vent
* 11:30 CH4 subcoolers top vent faded out
* 11:33 Frost on LOX tank started to appear
* 11:36 LOX subcoolers venting decreased
* 12:24 CH4 tank frost reached visible top
* 12:28 LOX tank depress vent, frost/condensation continued to grow
* 12:29 Last four LOX ring frost grew unequally
* 12:35 Completely loaded [LOX tank possibly ont right to the top]
* 12:36 CH4 tank depress vent
* 12:38:51 -39:16 OLM two sided vent at bottom northern outer shield; several puffs later on
* 12:38 Detanking began with frost starting to decrease on LOX tank
* 13:01 CH4 tank frost started to decrease as well
* 14:47 Chopsticks opened
* 14:49-52 Chopsticks raised above B7
* 15:03-09 Chopsticks completed rotation and closeing away from B7
* 15:12-28 Very slow descend started
* 15:30-16:18 Very slow descend continued
* 15:20 Frost on both tanks nearly completely disappeare
* 16:34 Final depress
* 17:35 Road opened

Subcoolers top vent is not anymore indicating the start of cryo load.

### Full Stack III and IV

#### 11-12 April 2023 - Destacking

Destacked for FTS installation. See Starship 7/24 article

## References

1. ↑ https://www.youtube.com/watch?v=G4ebfRG16nM
2. ↑ https://twitter.com/elonmusk/status/1535478522550136834
3. ↑ https://twitter.com/elonmusk/status/1558303186326265857
4. ↑ https://twitter.com/SciGuySpace/status/1587098804452573186/photo/1
5. ↑ https://twitter.com/elonmusk/status/1533408313894912001
6. ↑ https://twitter.com/elonmusk/status/1535478522550136834
7. ↑ **Chopsticks broke and leaked hydraulic fluid at 12:34 am;** object was spotted falling down and bouncing off the booster QD hood; possibly part of recently installed actuators failed; drone inspected the chopsticks [6 August]
8. ↑ https://twitter.com/joroulette/status/1546888558673264643
9. ↑ https://twitter.com/elonmusk/status/1546639772621365248
10. ↑ https://twitter.com/elonmusk/status/1546641991597006851
11. ↑ https://twitter.com/PPathole/status/1546675566035992576
12. ↑ https://twitter.com/elonmusk/status/1546713443943825408
13. ↑ https://twitter.com/elonmusk/status/1546727913944502274
14. ↑ https://twitter.com/elonmusk/status/1547094594466332672
15. ↑ https://twitter.com/elonmusk/status/1547093032301985794
16. ↑ https://twitter.com/elonmusk/status/1555794448826900480/photo/1
17. ↑ https://twitter.com/SpaceX/status/1557839580979535872
18. ↑ https://twitter.com/elonmusk/status/1557815777654235136
19. ↑ https://twitter.com/elonmusk/status/1557764571565240320/photo/1
20. ↑ https://twitter.com/elonmusk/status/1557957132707921920
21. ↑ https://twitter.com/elonmusk/status/1562314849912119296
22. ↑ https://twitter.com/elonmusk/status/1571922160226271238
23. ↑ https://twitter.com/elonmusk/status/1571935414448963586
24. ↑ https://twitter.com/elonmusk/status/1571910631971758081
25. ↑ https://twitter.com/elonmusk/status/1571935414448963586
26. ↑ https://twitter.com/elonmusk/status/1572561810129321984
27. ↑ https://twitter.com/elonmusk/status/1572564908381999105
28. ↑ https://twitter.com/elonmusk/status/1572563987258290177
29. ↑ https://twitter.com/elonmusk/status/1592229981895426048
30. ↑ https://twitter.com/elonmusk/status/1592434912765747201
31. ↑ https://twitter.com/elonmusk/status/1592441977525923841
32. ↑ https://twitter.com/SpaceX/status/1597703469502066690
33. ↑ https://twitter.com/search?q=check%20out%20this%20footage%20of%20the%20firex%20system&src=typed\_query
34. ↑ https://twitter.com/elonmusk/status/1623793909959901184
35. ↑ https://twitter.com/SpaceX/status/1623793079122817024
36. ↑ https://en.wikipedia.org/wiki/N1\_(rocket)
37. ↑ https://twitter.com/SpaceX/status/1624150738447536128
38. ↑ https://twitter.com/elonmusk/status/1624412830446534656
39. ↑ https://twitter.com/watchstarbase/status/1641127479128776705