On Fri, 11 Sep 2009 22:47:50 -0500, "Paul Remde"
wrote:

Hi,

I have recently had several inquiries for information comparing the new Trig
TT21 to the Becker ATC 4401. I have created a comparison table he
http://www.cumulus-soaring.com/trans...mparison_Table

The factory brochure
http://www.trig-avionics.com/library/tt21brochure.pdf
indicates that this Class 2 Transponder complies with the European
rules for "flying below 15.000 ft". Was it certified for flying up to
35.000 ft in the US? Lucky guys...

thanks

Aldo Cernezzi