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SpaceX takes another step toward launching Starship again

54 points by LinuxBender 3y ago

coffeebeanHH 3y ago
[flagged]
- BHSPitMonkey 3y ago
  Is this unique to SpaceX? I can't think of a single space program in history this criticism couldn't apply to, public or private.
- valianteffort 3y ago
  You should really consider professional help. It's not healthy to be this angry about something so inconsequential to your life.
Alghranokk 3y ago
Really looking forward to seeing how the new 'Stage 0' holds up to the full thrust of the rocket when it launches. Presumably the new deluge system would also result in some sound dampening during the first seconds after the engines are lit, no?
mensetmanusman 3y ago
Will they be using the water cooled steel sandwiches? https://x.com/rainmaker1973/status/1659648607014756370?s=46&t=tWEP3iLnjpiLlferFtPybw https://x.com/rainmaker1973/status/1659648607014756370?s=46&...
- tekla 3y ago
  You mean the one they already installed and tested on the launch pad statically and with fire? Yes.
Zigurd 3y ago
The static fire lasted 2.5s and was at about half power, minus 4 engines. And yet there are no "after" pictures of the rocket bidet. It was demurely covered by a tarp. If it fails, it will fail due to the full strength of the rocket blast either directly penetrating the bidet or flashing the water into steam and deforming or breaking the steel structure. It's not a "deluge" system. To have a deluge system, you need a flame trench, a flame diverter made of steel that can be readily replaced if it ablates, and your pour a massive amount of water onto the flame diverter and into the flame trench. To have a flame trench in a place with a high water table, you have to build a large mound because you can't actually dig a trench. Like at Kennedy Space Center. SpaceX won't do that because they are stuck in a sunk costs fallacy.
- Tuna-Fish 3y ago
  > SpaceX won't do that because they are stuck in a sunk costs fallacy. I think it's rather because that would be the kind of change that would require redoing permits, and while they could be very confident that they would get those permits⁰, this would almost likely take more than a year to get done. The thing to look out for is how they build their setup at the cape. If they make a conventional flame trench over there, they might just give up on their Texas launch site, at least until they can redo permits. 0: Every government actor involved seems supportive of them, and the impact on the environment would not be meaningfully larger than the current setup.

54 points by LinuxBender 3y ago

coffeebeanHH 3y ago

[flagged]

BHSPitMonkey 3y ago
Is this unique to SpaceX? I can't think of a single space program in history this criticism couldn't apply to, public or private.
valianteffort 3y ago
You should really consider professional help. It's not healthy to be this angry about something so inconsequential to your life.

Alghranokk 3y ago

Really looking forward to seeing how the new 'Stage 0' holds up to the full thrust of the rocket when it launches. Presumably the new deluge system would also result in some sound dampening during the first seconds after the engines are lit, no?

mensetmanusman 3y ago

Will they be using the water cooled steel sandwiches? https://x.com/rainmaker1973/status/1659648607014756370?s=46&t=tWEP3iLnjpiLlferFtPybw https://x.com/rainmaker1973/status/1659648607014756370?s=46&...

tekla 3y ago
You mean the one they already installed and tested on the launch pad statically and with fire? Yes.

Zigurd 3y ago

The static fire lasted 2.5s and was at about half power, minus 4 engines. And yet there are no "after" pictures of the rocket bidet. It was demurely covered by a tarp. If it fails, it will fail due to the full strength of the rocket blast either directly penetrating the bidet or flashing the water into steam and deforming or breaking the steel structure. It's not a "deluge" system. To have a deluge system, you need a flame trench, a flame diverter made of steel that can be readily replaced if it ablates, and your pour a massive amount of water onto the flame diverter and into the flame trench. To have a flame trench in a place with a high water table, you have to build a large mound because you can't actually dig a trench. Like at Kennedy Space Center. SpaceX won't do that because they are stuck in a sunk costs fallacy.

Tuna-Fish 3y ago
> SpaceX won't do that because they are stuck in a sunk costs fallacy. I think it's rather because that would be the kind of change that would require redoing permits, and while they could be very confident that they would get those permits⁰, this would almost likely take more than a year to get done. The thing to look out for is how they build their setup at the cape. If they make a conventional flame trench over there, they might just give up on their Texas launch site, at least until they can redo permits. 0: Every government actor involved seems supportive of them, and the impact on the environment would not be meaningfully larger than the current setup.