Derek Copeland wrote:
I happen to know that tests on a lightweight, low powered transponder for
hang gliders and paragliders proved unsuccessful, because most of the RF
output was being absorbed by their pilots' bodies! Ground radar and TCAS
where unable to detect these aircraft at any significant distance at all.

Those are not the transponders that would be installed in your glider,
so it's not clear to me what your point is.

Are you worried about running into a paraglider because it doesn't have
transponder?

--
Eric Greenwell - Washington State, USA
* Change "netto" to "net" to email me directly

* Updated! "Transponders in Sailplanes" http://tinyurl.com/y739x4
* New Jan '08 - sections on Mode S, TPAS, ADS-B, Flarm, more

* "A Guide to Self-launching Sailplane Operation" at www.motorglider.org