Geoff Kidd wrote:
Mark
Double negatives aside ............ how do you rate the double positive
of a warning that DOES occur when you have no idea that the other ship
is aiming for you HEAD-ON.
No technology is going to be perfect and not all ships will ever be
fitted with a suitable unit ... but how many good warnings does a pilot
need to justify spending $500 - $1000 on a safety issue.
I'll take that double positive any day ... and if there were others in
OZ with the unit fitted, I'd spend the money tomorrow.
Providing a visual failure & a system failure don't happen on the same
instance then there is absolutely no argument that it is a grand well spent.
However if it is a provably robust system which is still well priced
then why wouldn't you mandate it's use? There will still be failures but
the probability of them occurring will be substantially less. AT least
then you have given this aspect of Air Safety your best shot.
Don
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