T o d d P a t t i s t wrote:
Eric Greenwell wrote:

What does "certification" entail? When my transponder was installed, all
it got was a 5 minute "VFR check" with a little box about 5 feet from
the glider that showed it responded to interrogations and that the mode
C altitude reported was the airport elevation. It that all it takes to
ensure a TCAS isn't fooled?

Presumably "certification" was being used as shorthand for
the 91.413 tests, which reference Appendix F of Part 43. As
a matter of interest, I looked them up:

Appendix F--ATC Transponder Tests and Inspections

The ATC transponder tests required by Sec. 91.413 of this
chapter may be conducted using a bench check or portable
test equipment and must meet the requirements prescribed in
paragraphs (a) through (j) of this appendix. If portable

Big snip. An awful lot of stuff that doesn't apply to a mode C VFR
transponder check. Does any of it make my "box on the ground check"
insufficient to meet the standards? It would take longer to read, let
alone understand, than the actual check took.


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Eric Greenwell - Washington State, USA

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