FlyerTalk Forums - View Single Post - MH 370 KUL-PEK Missing: 8 - 14 Mar 2014 UTC - ARCHIVE WEEK #1
Old Mar 14, 2014 | 2:41 pm
  #3863  
stimpy
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Originally Posted by crosswind
The purpose of the transponder is so that radar can identify and track air traffic, and to that end pilot control of the transponder is essential.
Why is it essential? Please tell us.
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