From: jfindley@cinci.nospam.rr.com   
      
   In article <9s6TH.134226$zK1.102497@fx46.iad>,   
   jfmezei.spamnot@vaxination.ca says...   
   >   
   > On 2021-02-04 14:55, Jeff Findley wrote:   
   >   
   > > 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.   
   >   
   >   
   > For SN8, ground test would have shown inadequate pressure in header tanks.   
      
   I'm not certain it would.  There is no 100% adequate substitute for test   
   flights.   
      
   Jeff   
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