"Saryon" wrote in message ...
OK, but in this case the package is designed around a Cessna 172 which
comes with one standard. Why don't they just say "on at all times
outside of class G" instead of teaching what they seem to see as the
rule? To me they're saying "I can leave it in the OFF position if I'm
not in A, am outside of B, veil, or C airspace, and under 10,000
feet".

Frankly, the rules say any controlled airspace.
Good practice says, turn in on unless you've been told to turn it off.