On Tue, 27 Apr 2004 18:56:42 +0000 (UTC), "tango4"
wrote:

I don't see the benefit of any anti collision systems where two pilots
already know that the other is nearby and #still# collide!


Ian



Which is true of all the mid airs in gliders in Australia as far as I
know. If they didn't specifically know about each other the pilots
certainly had good reason to believe other gliders were around.

Mike Borgelt