Starship Development Thread #52 (sh.itjust.works)

submitted 11 months ago* (last edited 10 months ago) by threelonmusketeers@sh.itjust.works to c/spacex@sh.itjust.works

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Portions of this thread copied from the Starship Dev thread on r/SpaceX.

FAQ

When next launch? IFT-3 is NET Feb 2024, and after completion of the IFT-2 mishap investigation. Candidate vehicles are Booster 10 and Ship 28.
When previous launch? (IFT-2)? Booster 9 and Ship 25 launched on 2023-11-18.
What was the result? Successful lift off with minimal pad damage. Successful booster operation with all engines to successful hot stage separation. Booster destroyed by AFTS after attempted boost-back. Ship fired all engines to near orbital speed then destroyed by AFTS. No re-entry attempt.
Was IFT-2 a complete failure? No. As part of an iterative test programme, many milestones were achieved. Perfection is neither expected nor desired at this stage.

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Quick Links

Starship Dev 51 | Starship Dev 50 | Starship Dev 49 | Starship Dev 48

Official Starship Update

Status

Road Closures

Type	Start (CDT)	End (CDT)	Status
Primary Date	2023-12-18 08:00	2023-12-18 20:00	Closure Revoked. HWY 4 and Boca Chica Beach will be open.
Alternative Date	2023-12-19 08:00	2023-12-19 20:00	Closure Revoked. HWY 4 and Boca Chica Beach will be open.
Alternative Date	2023-12-20 08:00	2023-12-20 20:00	Closure Concluded. HWY 4 and Boca Chica Beach now open.
Primary Date	2023-12-21 08:00	2023-12-21 20:00	Closure Concluded. HWY 4 and Boca Chica Beach now open.
Alternative Date	2023-12-22 08:00	2023-12-22 20:00	Closure Concluded. HWY 4 and Boca Chica Beach now open.
Primary Date	2023-12-27 08:00	2023-12-27 20:00	Closure Revoked. HWY 4 and Boca Chica Beach open.
Primary Date	2023-12-29 06:00	2023-12-29 16:00	Possible closure.
Alternate Date	2024-01-03 08:00	2024-01-03 18:00	Possible closure.
Alternate Date	2024-01-04 08:00	2024-01-04 18:00	Possible closure.

Up to date as of 2023-12-27

Vehicle Status

As of 2024-01-05

Follow Ring Watchers on Twitter and Discord for more.

Ship	Location	Status	Comment
S24	Gulf of Mexico	Destroyed	April 20th (IFT-1): Destroyed by flight termination system after successful launch.
S25	Atlantic Ocean	Destroyed	Mostly successful launch and stage separation
S26	Rocket Garden	Mysterious	Static fire Oct. 20. No fins or heat shield, multiple mysterious changes. Completed 3 cryo tests, latest on Oct 10.
S28	Highbay	Pre-flight prep	Static fired Dec 29th
S29	Megabay 2	Pending engine install	3x cryo
S30	Massey's	Cryo testing	2x cryo: Jan 3rd and Jan 5th
S31	High Bay	Receiving aft flaps
S32	High Bay	Under construction	Stacking in progress.
S33-34	Build Site	Parts spotted	To be scrapped in preparation for Starship V2

Booster	Location	Status	Comment
B7	Gulf of Mexico	Destroyed	Destroyed by flight termination system after successful launch.
B9	Gulf of Mexico	Destroyed	Successfully launched, destroyed during Boost back attempt.
B10	Megabay 1	Pre-flight prep	Static fired Dec 29th.
B11	Megabay 1	Finalizing	Completed 2 Cryo tests.
B12	Massey's	Pending cryo testing
B13	Megabay 1	Stacking	LOx tank stacked
B14	Build Site	Assembly	Assorted parts spotted
B15	Build Site	Assembly	Potential aft end spotted Jan 5th

Resources

LabPadre Channel | NASASpaceFlight.com Channel
NSF: Booster 7 + Ship X (likely 24) Updates Thread | Most Recent
NSF: Boca Chica Production Updates Thread | Most recent
NSF: Elon Starship tweet compilation | Most Recent
SpaceX: Website Starship page | Starship Users Guide (2020, PDF)
FAA: SpaceX Starship Project at the Boca Chica Launch Site
FAA: Temporary Flight Restrictions NOTAM list
FCC: Starship Orbital Demo detailed Exhibit - 0748-EX-ST-2021 application June 20 through December 20
NASA: Starship Reentry Observation (Technical Report)
Hwy 4 & Boca Chica Beach Closures (May not be available outside US)
Production Progress Infographics by @RingWatchers
Raptor 2 Tracker by @SpaceRhin0
Acronym definitions by Decronym
Everyday Astronaut: Starbase Tour with Elon Musk, Part 1 | Part 2 | Part 3
Everyday Astronaut: 2022 Elon Musk Interviews, Starbase/Ship Updates | Launch Tower | Merlin Engine | Raptor Engine

(page 2) 21 comments

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[-] threelonmusketeers@sh.itjust.works 3 points 11 months ago

Starbase activities (2023-12-19):

B10 lifted on to the orbital launch mount. Slight issue with some obstructing scaffolding, but ultimately fine. Stabilization pins release, and chopsticks release and move upwards.
The raptors have protective covers
B10 cable management is better than on B9
FireX tested with B10 in place
Two more raptor boost engines delivered behind mega bay
New potential road closures posted for December 21st and 22nd.

[-] Decronym@lemmy.decronym.xyz 3 points 11 months ago* (last edited 10 months ago)

Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I've seen in this thread:

Fewer Letters	More Letters
AFTS	Autonomous Flight Termination System, see FTS
FAA	Federal Aviation Administration
FCC	Federal Communications Commission
~	(Iron/steel) Face-Centered Cubic crystalline structure
FTS	Flight Termination System
GSE	Ground Support Equipment
HLS	Human Landing System (Artemis)
ITS	Interplanetary Transport System (2016 oversized edition) (see MCT)
~	Integrated Truss Structure
KSC	Kennedy Space Center, Florida
LEO	Low Earth Orbit (180-2000km)
~	Law Enforcement Officer (most often mentioned during transport operations)
LN2	Liquid Nitrogen
LOX	Liquid Oxygen
MCT	Mars Colonial Transporter (see ITS)
NSF	NasaSpaceFlight forum
~	National Science Foundation
OLM	Orbital Launch Mount
SPMT	Self-Propelled Mobile Transporter
TPS	Thermal Protection System for a spacecraft (on the Falcon 9 first stage, the engine "Dance floor")

Jargon	Definition
Raptor	Methane-fueled rocket engine under development by SpaceX
Starlink	SpaceX's world-wide satellite broadband constellation
iron waffle	Compact "waffle-iron" aerodynamic control surface, acts as a wing without needing to be as large; also, "grid fin"
methalox	Portmanteau: methane fuel, liquid oxygen oxidizer

[Thread #25 for this sub, first seen 10th Dec 2023, 02:00] [FAQ] [Full list] [Contact] [Source code]

[-] threelonmusketeers@sh.itjust.works 2 points 10 months ago* (last edited 10 months ago)

Starbase activities (2024-01-07):

The mysterious S26 moves from the Rocket Garden ~~to the build site~~, and is hooked up to ~~a crane~~ the LR1750. The S26 mystery continues. (Edit: S26 not moved to the build site, still in the Rocket Garden.)
At the launch site, the second tank shell is scrapped in the same manner as the first.
A fancy cryo tanker arrives, sporting a Space Shuttle painting.
LR11000's tank shell lifting jig swapped out for inner tank lifting jig. Zack Golden eats his words from yesterday. LR11000 is hooked up to remove the inner GSE tank which was exposed yesterday. Visible on NSF Starbase Live and LabPadre Rover 2.

[-] threelonmusketeers@sh.itjust.works 1 points 10 months ago

This thread is no longer being updated, and has been replaced by:

Starship Development Thread #53

[-] Lichtblitz@discuss.tchncs.de 1 points 11 months ago

As part of an iterative test programme, many milestones were achieved. Perfection is neither expected nor desired at this stage.

Sounds reasonable, except for the final bit. It's just ridiculous to claim that perfection was not desired. Sensors provide the same data, investors will be happier and invest more, clients will gain more trust and spend more. It feels like the excuse some kid would come up with, who is lacking self confidence to stand by their limited success and claimed it was all intentio... oh.

[-] xvlc@feddit.de 2 points 11 months ago

I think you are reading too much into this. SpaceX has a rather aggressive test program, and the purpose of the tests is not (only) to verify the functionality of the system, but also to learn about the vehicle and involved technologies. At this stage they are pushing the boundaries of the systems capabilities intentionally up to the point where it might start to fail. So if things don’t fail, it only means that they could have pushed harder and squeezed out more performance.

That does not mean that anyone wants Starship to explode. But the objective is clearly not to do a perfect launch, because SpaceX knows that it’s more efficient to make mistakes a few times times and then succeed, instead of spending excessive amounts of time and money one single perfect test launch. This has been communicated very clearly from the very beginning.

[-] Lichtblitz@discuss.tchncs.de 1 points 11 months ago* (last edited 11 months ago)

Not really. It has been communicated very clearly that if there wasn't a successful starship launch every two weeks by 2022 (I believe that's the year Elon Musk used?), SpaceX runs the risk of bankruptcy. At this point what they are doing means, that he wasn't truthful when he said that, or that they are failing unintentionally and downplaying it, or that they are actually very far behind their plans and heading toward bankruptcy.

[-] John_Hasler@lemmy.one 1 points 11 months ago

"Runs the risk" means it might happen, not that it will happen. When he said that Starlink was committed to switching to the version two satellites and F9 was not expected to be able to launch them. They would have missed their FCC deadlines. However, they were able to develop the "shrunken" Starlink2 that fits on F9. I also think that both the F9 launch cadence and Starlink sales have exceeded expectations.

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