Ramy wrote:
Meanwhile, at least in the US, our only option is the 30 years
old technology of transponders, which are relatively effordable for
most pilots I see flying at the Reno area.

Ramy, what if the collision had been between an older Learjet, not
equipped with TCAS, and not talking to ATC (in the process of being
handed off, talking to FSS, or just tooling around VFR. Transponders
would be totally useless in preventing the midair.

Remember, unless equipped with TCAS (big jets) or an IFF interrogator
(many military fighters), or talking to the controlling agency that is
actually watching you and your transponder, it's not going to do any
good. It is absolutely no good at preventing VFR - VFR midairs.

TPAS is a good solution, since it warns you of someone else tooling
around with his xponder on. ADS-B would be nice, if
affordable/practicable in a glider. FLARM is pretty much only
glider-to-glider, and requires active participation (and is a moot
point in the US anyway, at present).

If I was going to get up in the flight levels with my glider (no
thanks, I happen to like my old gelcoat, thankyou!) I would seriously
consider a transponder. Also an attitude indicator!. Down lower, if
traffic is an issue, then I'm leaning towards some kind of TPAS - like
device. I'm waiting for one with a good aural cue (I think there is
one out now). Any comments from current TPAS users out there?

Kirk
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