What determines LNAV "circling mode"?

If you don't have the G-meter option, there are two other ways the LNAV
might use to let it know if you're circling or in cruise. Your glider may
have a switch installed on the flap mechanism to sense selection of
thermalling flaps, or it could have a manual toggle or selector switch on
the panel or stick.
--
bumper
"Dare to be different . . . circle in sink."
to reply, the last half is right to left

"Jack" wrote in message
link.net...
I have been trying to figure out what is happening with my Cambridge
LNAV since in several flights "speed-to-fly" bars have never appeared,
even in a long continuous glide straight at the goal indicated by the
connected Cambridge GPS. Since "speed-to-fly" bars only appear in
"cruise" mode possibly my LNAV is somehow always in "circling" mode -
but I cannot find in my very thin LNAV manual (version 4, march
1995) what determines the choice of "cruise" vs "circling" mode so am
hoping someone here has that knowledge so I can at least know how I
should _expect_ it to behave.

(FYI I do not believe I have the G-meter option, though can't say for
sure since I was not the one who purchased the LNAV new.)



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