Ramy wrote:
While you may be detected by ATC on primary without a transponder, you
wouldn't be detected by airliners and other aircrafts carrying TCAS and
will not give traffic resolution.

And you won't be detected by airplanes and gliders using a TPAS instrument.

--
Change "netto" to "net" to email me directly

Eric Greenwell - Washington State, USA

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