TCAS not 100% but better than nothing!
Hello Dick
I totally agree with you that TCAS is a REQUIREMENT in modern aviation even if it only adds another important safety element in our complex aviation environment....it gives the crew a realtime picture and I am sure in a few years it will be superseded with something more magical.
It saved my bacon overseas under procedural control and a limited english environment!
Just on a point though, the tragic B757 DHL-TU154 midair over Europe a few years ago, TCAS worked perfectly in both aircraft, unfortunately the B757 crew complied with the RA and the TU154 Capt. wanted to but then decided to follow a fatal ATC instruction. Not a perfect system due to the human interface ie. not a 100% record.
by the way still in the heart of Europe displaying my COMPANY ISSUED ID. CARD.........sorry Dick just another chapter that should have been in your book.....have you thought about a sequel!!!
Emu