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

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   Message 105,160 of 106,651   
   Snidely to All   
   Re: SpaceX and the FAA   
   04 Feb 21 12:00:59   
   
   From: snidely.too@gmail.com   
      
   With a quizzical look, Jeff Findley observed:   
   > In article ,   
   > jfmezei.spamnot@vaxination.ca says...   
   >> Consider this: now they have telemetry and debris. Had they don this on   
   >> a launch pad with rocket firmly attached, they would have not only the   
   >> telemetry, but also the engines they could analyze on why one didn't ligh   
   >   
   > Testing like you describe doesn't represent the actual dynamics the   
   > vehicle experiences during flight.  Starship has to go from a stable   
   > "belly flop" to vertical in a few seconds.  That quick rotation no doubt   
   > causes all sorts of forces on the fuel and oxidizer resulting in   
   > pressure changes.  It's no wonder it's taking them a few times to get it   
   > right.   
   >   
   > In other words, a ground test with the vehicle stationary would almost   
   > certainly have passed.  SpaceX does all sorts of Raptor tests at   
   > McGregor Texas before shipping them to Boca Chica.   
   >   
      
   Also, the SN7.2 testing continued today.  Appears to have split a weld   
   on the beach side, but no flying debris.   
      
   /dps   
      
   --   
   "Inviting people to laugh with you while you are laughing at yourself   
   is a good thing to do,  You may be a fool but you're the fool in   
   charge." -- Carl Reiner   
      
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