It's a bit of a moot point, anyway. The problem in the US (and
probably Canada, also) is not midairs with other gliders (as it is in
Germany or the Alps), but midairs with VFR lightplanes or fast
movers. FLARM would do absolutely no good unless they also carried
it, and that is not going to happen!

What we need in the US is a low-power, combination transponder (to
trigger TCAS and be seen by ATC) and transponder detector (like TPAS)
to warn of nearby VFR or military traffic that is transponder-equipped
but not talking to center.

The detector is easy - $500 for a TPAS and we are good to go. I plan
on getting mine when the season starts. But at $2K+ for a
transponder, it's be a while before they are real common, especially
in older gliders.

What I would like is an integration of TPAS with my PDA software
(SeeYou Mobile, in my case) so I can hide the hardware - one less
thing to look at inside the cockpit. I want a good loud "CHECK
TRAFFIC ONE MILE FORTY-SIX HUNDRED FEET CLOSING" to get my attention
where it belongs! We already have it for airspace and as far as I
know, no-one has ever died from running into Class B airspace!

Kirk
Ls6 "66"