On Feb 11, 11:36*pm, Darryl Ramm wrote:
Yo Hans

I do not think Eric is overselling PCAS.



Did that help? (and Hans try to stay awake in my next transponder
presentation :-))

Darryl


Reverse or "negative thinking"

Darryl,

Nice response explaining the LIMITATIONS of PCAS.

Eric article did and excellent job of explaining the workings and the
features of the various collision avoidance hardware available. I
think we need a follow up article explaining all of the shortfalls of
each system.

For instance, I have flown with PCAS a couple of times and it did not
work at all the way I had expected it to work. Yes, it worked, but I
had a totally wrong impression of what was going to happen.

I think a lot of pilots equip their airplanes and gliders with the
"latest and greatest" hardware and get a false sense of security.

The problem is you can't prove a negative. All of the systems will
can't assure that ALL of the aircraft have been "spotted". Just like
"see and avoid" cannot guarantee that you see everybody, I don't see
any collision avoidance system that can "see" everybody either.

The day after the Boulder incident, a guy came into the Cafe at our
airport. He flew in with a new Cirrus equipped with a Garmin 1000.
Overhearing our glider conversation, he asked a very telling question,
"Do gliders have transonders?".

He was shocked by my answer, and I was shocked by his question!!!!


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