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Thread: Temperature error correction
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Old 3rd Nov 2011, 02:38
  #4 (permalink)  
reynoldsno1
 
Join Date: Jan 2000
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Rule of thumb is 4ft per 1000ft above AD per AD temp degree of difference from ISA

i.e. AD @ 1000ft amsl @ 0C w/FAP at 3000ft alt

FAP height = 2000ft
AD ISA temp = 13C, so difference from ISA = -13
Temp error = 4 x 2 x 13 = -104ft (underread)
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