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Old 2nd Mar 2011, 19:46
  #28 (permalink)  
BOAC
Per Ardua ad Astraeus
 
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FBTW - you will need to stretch your mind a little! All meridians of longitude are both Rhumb and great circle. Brace yourself - they do cut meridians at the same angle = 0.

Thinks - that might be 180
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