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Thread: TAS GS and IAS help
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Old 19th January 2015 | 08:58
  #4 (permalink)  
bfisk
 
Joined: Jun 2006
Posts: 716
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From: Europe
No, your friend is incorrect.

Indicated airspeed (IAS) +- instrument, position and calibration errors ---> Calibrated airspeed (CAS)
CAS +- density correction ---> True airspeed (TAS)
TAS +- head/tailwind component ----> Ground speed (GS).
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