From: jfindley@no.spam.cinci.rr.com   
      
   In article ,   
   jfmezei.spamnot@vaxination.ca says...   
   > So if you head to a 51° orbit from 28", you start with a 1471kmh   
   > eastbound vector, and instead of adding your energy in the same   
   > direction, you add diagonally. The resulting speed vector is a   
   > compnination of hoziozontal and vertical, with the horizontal being   
   > bigged than the 1471 push you got at launch.   
   >   
   >   
      
   That's not how this works!  It's not at all like taking an interstate   
   ramp at 65 mph and changing directions.  Remember, when you launch   
   something into space, it's not got anything to "turn against".   
      
   Because of this, you don't get all of the velocity of the earth's   
   rotation when you launch to higher inclinations.  You only the component   
   of the velocity that's in same direction as the earth's rotation.  The   
   rest of the earth's rotational velocity that you would have gotten is   
   lost.  This is because you're essentially doing an orbital inclination   
   change during launch.  And those *are* expensive.   
      
   For example, say you're going for a polar orbit.  You get absolutely   
   nothing from the earth's rotation.   
      
   https://en.wikipedia.org/wiki/Orbital_inclination   
      
   https://en.wikipedia.org/wiki/Orbital_inclination_change   
      
   Also, this is why if you're launching into geostationary orbit, it's   
   much more efficient to use a launch site as close to the equator as   
   possible.  For example, ESA uses the Guiana Space Center in South   
   America:   
      
   https://en.wikipedia.org/wiki/Guiana_Space_Centre   
      
   Jeff   
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