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Old 6th Sep 2010, 11:18
  #224 (permalink)  
Nick Thomas
 
Join Date: Mar 2007
Location: Cardiff UK
Age: 65
Posts: 118
Thanks CJ and M2Dude for such complete answers. When I was typing "air pressure" I knew it was not quite the right term; so M2dude thanks for explaining that the correct term is "air density".
Would I be right in thinking that TAS is different from speed over the ground? I presume GS would be TAS plus or minus wind speed.
Regards
Nick
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