Hi,

That is an interesting point. I wonder if Trig will update the manual with
changes to the maximum altitude when the first batch of units destined for
the US (after receiving US approvals) ships.

Best Regards,

Paul Remde
Cumulus Soaring, Inc.

"jcarlyle" wrote in message
...
Don't know European rules, but the Trig TT21 installation manual says
in Table 3.1 that the altitude is 35,000 feet.

-John

On Sep 12, 8:08 am, cernauta wrote:
The factory brochurehttp://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...