"303pilot" brentUNDERSCOREsullivanATbmcDOTcom wrote in message

1, There are (n) gliders in close proximity - say 1 kilometer. Even
simple
GPS broadcast devices should be able to determine the number of gliders
nearby. It should beep softly when the number changes. (If the device
says
there are 3 gliders nearby and you can only see 2, you need to keep
looking.)

I think stopping here would be a good trade-off between improvement and
perfection. Helping me identify that there's something I don't know that
I
don't know is very valuable. While we're dreaming, how about the ability
to
verbally acknowledge visual contact with 2 of the 3 ships and let the
computing & display power focus on helping us find the unseen ship?



Unfortunately, discrete tracking and acknowledgement will add an order of
magnitude to the computing power needed. Providing bearing and distance to
any glider that presents greater than zero probability of a collision is
pretty easy by comparison. The number of glider thus reported will be low
even in a large gaggle.

Bill Daniels