Author Topic: SpaceX Starship : First Flight : Starbase, TX : 20 April 2023 - DISCUSSION  (Read 532638 times)

Offline WisRich

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Reading that license has been granted.

It's happening. :)


Offline sferrin

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"DARPA Hard"  It ain't what it use to be.

Offline TomH

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So happy! Time to frame this and hang it on my wall!

Offline jackvancouver

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The official mission patch looks very... Electron. But that's not a bad thing.

Offline Herb Schaltegger

The actual Launch License term is 5 years but it's expressly limited to the first launch only until modified or amended. The FAA is hedging their bets. However, absent things going REALLY pear-shaped in the worst possible ways all around, I expect that this limit will be amended away within weeks after the first launch.
Ad astra per aspirin ...

Offline Revolver Ocelot

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So what is everyone’s prediction for how the flight will go? 

Offline jpo234

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So what is everyone’s prediction for how the flight will go?
Up and then down again.
You want to be inspired by things. You want to wake up in the morning and think the future is going to be great. That's what being a spacefaring civilization is all about. It's about believing in the future and believing the future will be better than the past. And I can't think of anything more exciting than being out there among the stars.

Offline Nevyn72

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So what is everyone’s prediction for how the flight will go?
Up and then down again.

The first part of that is yet TBD....

Offline sferrin

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So what is everyone’s prediction for how the flight will go?
Up and then down again.

The first part of that is yet TBD....
If the fire starts it'll go up for sure.  How fast and how high would be the question.  ;)
"DARPA Hard"  It ain't what it use to be.

Offline jpo234

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So what is everyone’s prediction for how the flight will go?
Up and then down again.

The first part of that is yet TBD....
As Niels Bohr said:
Quote
Prediction is very difficult, especially if it's about the future.
You want to be inspired by things. You want to wake up in the morning and think the future is going to be great. That's what being a spacefaring civilization is all about. It's about believing in the future and believing the future will be better than the past. And I can't think of anything more exciting than being out there among the stars.

Offline Vahe231991

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So what is everyone’s prediction for how the flight will go?
Up and then down again.

The first part of that is yet TBD....
If the fire starts it'll go up for sure.  How fast and how high would be the question.  ;)
Given that Elon Musk hinted at the possibility that the first Falcon Heavy might fail, only to see that prediction dashed after the first Falcon Heavy launch reached orbit, I think the first Starship launch will smoothly lift off from the launch pad, reach max Q over the Gulf of Mexico, and put the Starship stage into a stable orbit three or four seconds after the first stage separates.

Offline alugobi

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"Past performance does not guarantee future returns."

Offline xvel

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Falcon heavy was a finished product, just not yet tested, Starship is an early prototype...
And God said: "Let there be a metric system". And there was the metric system.
And God saw that it was a good system.

Offline Jim

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nd put the Starship stage into a stable orbit three or four seconds after the first stage separates.

It will be far from orbital at that point.  Starship has burn to near depletion to go into orbit.

Also separation has not been demonstrated
« Last Edit: 04/14/2023 11:55 pm by Jim »

Offline whitelancer64

So what is everyone’s prediction for how the flight will go?
Up and then down again.

The first part of that is yet TBD....
As Niels Bohr said:
Quote
Prediction is very difficult, especially if it's about the future.

I fully expect that there will be a scrub or two (but that won't preclude me having a launch webcast on in the background to keep an eye on).

However, once they open the launch clamps with the engines running, I expect it will most likely clear the pad with minimal problems. They could easily lose an engine or two or three on ascent, and I'm not sure how visible that will be to us. The big milestones in my book are stage separation and the in-flight ignition of Starship's engines. Anything that happens after that is pure gravy as far as I'm concerned.

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Offline TomH

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Take this as pure speculation, I am NOT a lawyer.  There was some speculation a while back that an injunction stopping Star Ship launch may happen due to environmental issues.  I would think you can't get an injunction without a launch license in place.  Therefore, might SpaceX try to delay the license until late Friday after the courts are closed and try to get a launch off on Monday before the courts reopen?

IANAL either,  but an emergency injunction can theoretically be obtained by finding an appropriate judge willing to issue one, even after hours.  Mind, if you're disturbing a judge on his days off, you'd better have a pretty solid case, and since the FAA already went through the environmental evaluation last year, good luck with that.

Have heard from other sources that license had been ready for a day or two. And, indeed, announcement was made at end of the day on a Friday. Further, the LV should be propped and ready first thing Monday. Though the above theory is speculation, the current timing certainly matches the the theory thus far.


Online catdlr

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A 122 page document has been published by the FAA in relation to the launch license: https://www.faa.gov/media/27236

I've only skimmed through it, but there's a lot of detailed information relating to the test flight (specifically the "landings" and their environmental impact) that I'm sure will be of interest.

One excerpt on page 3 seems to suggest that Ship 25 is being skipped in favor of S26:

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SpaceX also proposes to add an area southwest of Hawaii, uprange of the passive descent ocean
landing area, to account for the potential Starship debris field for the second and third launches of
Starship that are not configured to survive atmospheric reentry
.

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SpaceX would expend Starship (break up upon atmospheric entry) following the second and third launches.
]

So the second and third are the two SS's that are bare (no thermal tiles and flaps)??
« Last Edit: 04/15/2023 02:34 am by catdlr »
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Offline joek

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IANAL either,  but an emergency injunction can theoretically be obtained by finding an appropriate judge willing to issue one, even after hours.  Mind, if you're disturbing a judge on his days off, you'd better have a pretty solid case, and since the FAA already went through the environmental evaluation last year, good luck with that.

As noted in the update thread (@SteveObrien), there is also an updated WRITTEN RE‐EVALUATION OF THE 2022 FINAL PROGRAMMATIC ENVIRONMENTAL ASSESSMENT, 14-Apr-2023 (today).

Any challenge is going to have to address that, not just the older PEA, WR's, etc.

edit: p.s. interesting aside... that WR was signed 2023.04.14 16:30.04-4'00'; launch license signed  2023.04.14 17:32:34 -04'00'.
« Last Edit: 04/15/2023 02:52 am by joek »

Online FutureSpaceTourist

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https://twitter.com/alexphysics13/status/1647065221779931136

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Welp I was going to sleep but instead spent about an hour reading through this 122 page PDF that came out today along with the license. This is a re-evaluation of the PEA specific for the flight profile of the first few flights of Starship, cool stuff.

faa.gov/media/27236

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Some of the stuff that I found interesting:

- Second and Third flights of Starship will be with S26 and S27 (expected but now comfirmed)

- Super Heavy will be landing on the surface of the ocean. SpaceX will NOT recover it and will instead try to sink it in any way possible

https://twitter.com/alexphysics13/status/1647065239802847237

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- Ship 24 will have onboard flight recorders to be retrieved for data. This we kinda guessed from the hardware installed on its exterior but now it's confirmed.

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As part of that study, they needed to study the way the transfer tube on Starship may be damaged due to sudden impacts. Something that they had previous experienced with SN10's hard landing
- A lot went into figuring out the impact to marine life due to Ship 24's impact with the water

https://twitter.com/alexphysics13/status/1647065254285721600

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Lastly, the document was signed just this afternoon which makes me think was the "hold up" for the FAA to finally wrap up and grant the license.

https://twitter.com/alexphysics13/status/1647068584747597824

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An extra thought from this is...

This document covers the FireX system on the pad and it's supposed to be at least the first three flights. It doesn't mention the deluge system SpaceX is building so it makes me think this system may not debut until the fourth flight 🤔
« Last Edit: 04/15/2023 02:46 am by FutureSpaceTourist »

Online FutureSpaceTourist

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https://twitter.com/13ericralph31/status/1647012708305506304

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In addition to everything else, SpaceX confirmed in an email that it will allow accredited press to set remote cameras about 500 feet away from the launch mount! Should result in some amazing photos if the dust clouds aren't too awful :)

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