From: alain245@videotron.ca   
      
   On Sep/12/2022 at 04:18, pnn calmagorod wrote :   
   > Il giorno sabato 10 settembre 2022 alle 18:21:39 UTC+2 JF Mezei ha scritto:   
   >> Not sure if there is anoyone left in the group, but just in case.   
   >>   
   >> Consideirng SLS has been in development for over 10 years, considering   
   >> they already had quick disconnect experience for H2 refueling on   
   >> Shuttle, I am curous on what constraints would have prevented them from   
   >> developping a reliable H2 fill line quick disconnect for SLS ?   
   >>   
   >> I take it that they can't test it at VAB because they don't have LH2   
   >> lines there. (and leaking H2 indoors, not a great idea).   
   >>   
   >> But when this quick disconnect was designed, wouldn't it have had some   
   >> real testing with LH2 to ensure it works well and that any limitations   
   >> and maintenance requiremenmts (eg: change rubber seals every X refills)   
   >> would be well known.   
   >>   
   >>   
   >> And considering the number of tests they did of this rocket, how come   
   >> this quick disconnect problem didn't get noticed before ?   
   >   
   >   
   > Nothing will never colonized  by roketry   
   > It is a physical law,   
   > Continue till to the disaster   
      
   There is no physical law that prohibits space colonisation by rocketry.   
   On the other hand there is a physical law that prohibits space   
   colonisation using PNN. If you don't know what physical law that is let   
   me give you a hint. PNN stands for propulsione non newtoniana.   
      
      
   Alain Fournier   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)