XPost: misc.misc   
   From: foo@bar.baz.invalid.retro.com   
      
   In sci.space.tech Joann Evans  wrote:   
   >    Reaching escape velocity with low-thrust engines means spiraling   
   > slowly out from LEO, spending way too much time in the VanAllen belts.   
   > Higher thrust departures cut across them more quickly and directly.   
      
   How much additional shielding/mass did that European lunar probe had   
   (SMART?) that used an ion engine to spiral out from Earth to lunar   
   orbit?   
      
   rick jones   
   --   
   Process shall set you free from the need for rational thought.   
   these opinions are mine, all mine; HP might not want them anyway... :)   
   feel free to post, OR email to raj in cup.hp.com  but NOT BOTH...   
      
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