home bbs files messages ]

Forums before death by AOL, social media and spammers... "We can't have nice things"

   rec.arts.sf.science      Real and speculative aspects of SF scien      45,986 messages   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]

   Message 44,205 of 45,986   
   Mikkel Haaheim to All   
   Re: Waterskiing spacecraft manevuering   
   23 Jul 16 12:41:33   
   
   From: mikkelhaaheim@gmail.com   
      
   Le samedi 23 juillet 2016 06:13:19 UTC+2, nu...@bid.nes a écrit :   
      
   >   Yes, but remember that the cables *stretch* as thrust is applied. Reduce   
   thrust to zero and the cables don't just hang slack, restoring force pulls the   
   towed module forward. Unless the cables are reeled in there's a clear risk of   
   fouling them.   
   >    
      
   That is true. Thinking about it, there would also be consequences with the   
   distribution of momentum between different masses. So, okay, I need to refine   
   my statement... reducing thrust is not a problem unless you reach a certain   
   threshold limit where    
   elastic tension starts to overwheml current thrust, or if you reduce thrust   
   too quickly while below that threshold (the issue should be largely resolved   
   if you allow time for the cables to return to original condition, and drift   
   will be less of a problem    
   if momentum is relativelt stable.   
      
   OTOH, spring recoil reels wouldn't hurt.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

[   << oldest   |   < older   |   list   |   newer >   |   newest >>   ]


(c) 1994,  bbs@darkrealms.ca