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   sci.space.policy      Discussions about space policy      106,651 messages   

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   Message 106,130 of 106,651   
   Snidely to All   
   Re: Time between launch attempts   
   21 Apr 23 17:22:20   
   
   From: snidely.too@gmail.com   
      
   on 4/21/2023, JF Mezei supposed :   
   > On 2023-04-18 06:50, Alain Fournier wrote:   
   >> Does anyone know why it take two days before SpaceX can make another   
   >> launch attempt after having filled the tanks?   
   >   
   >   
   >   
   > Considering Melon expect to be able to launch every 20 minutes (or   
   > whatever unrealistic number) One would think /iterative development"   
   > would see redevelopment of the launch complex.   
   >   
   > The good news is that 25+ Raptor engines have become great assets for   
   > the Boring company to start digging tunnels.   
   >   
   > I remember being told that a flame treench wasn't necessary. Considering   
   > the force at which concrete was thrwon to large distances, I have to   
   > wonder if the FAA has any jurisdiction on "stage 0".   
      
   They do.  They will take yesterday's results in consideration when   
   considering the launch license for the next orbital attempt.   
      
   Note also that SpaceX had already decided to install a water deluge   
   system (which would have reduced the energy reaching the concrete) and   
   was working on a flame diverter.  They may find that not delaying 4&20   
   to allow one or both to be completed has caused longer and serious   
   delays for 9&26.  If it's possible to repair the existing launch site,   
   assessments will probably take at least a month before that work can   
   begin.  If they have to scrap it and use the second tower site, that   
   will take at least a year (based on the faster progress seen at KSC).   
      
   Also note that a flame trench may not have been as easy as a diverter   
   structure, due to the water table issue.  The crater from Thursday is   
   already getting wet.  KSC's 39A was already built up into a small hill   
   before SpaceX leased it.   
      
   We don't know yet if the concrete shrapnel is the cause of the first   
   engine outs, but there's certainly speculation about that.   
      
   /dps   
      
   --   
   Yes, I have had a cucumber soda.  Why do you ask?   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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