XPost: sci.space.history   
   From: rellim113@hotmail.com   
      
   Proponent@gmx.net wrote:   
   > Does anybody know of any other cases in which engines either were or   
   > were not audible in the cockpit?   
      
      
   I've heard RCS thruster firings on the shuttle compared to howitzers...   
   and (IIRC) the STS-1 mission report states that the crew mainly used the   
   verniers for attitude control so they wouldn't be woken up/disturbed by   
   the larger thrusters firing   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)