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Thread: "TCAS RA" Call
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Old 1st Jul 2009, 10:33
  #27 (permalink)  
AerocatS2A
 
Join Date: Jan 2004
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Back when TCAS was developed, pilots were insistent that the TCAS not be a command, but an advisory, hence, Resolution Advisories and not Resolution Commands. Now you say it's going to be automatic. Uh, oh; Big Brother is taking over.
Hmm, you do need to be very careful about automating such things. I once received a DESCEND RA whil on short finals at about 300' AGL. I dutifully ignored the command and continued the approach, a short time later while in the flare I received another DESCEND RA. This is in the landing flare! It was obvious to me that the radalt inhibit function had failed and I was getting commands that should have been inhibited due to terrain, imagine if my aircraft had followed the commands.
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