View Single Post
  #8  
Old March 9th 10, 04:22 PM posted to rec.aviation.soaring
John Cochrane
external usenet poster
 
Posts: 90
Default More Glide Nav 2 questions - Need technical advice

On Mar 9, 6:43*am, rlovinggood wrote:
Thanks Paul,

I thought "To Finish" in that application meant to head for Finish at
that time, thus bypassing any remaining turnpoints. *That would be as
in a MAT when you have decided you've flown all the turn points you
can, and you're not going to attempt others, and you want to head
home.

I hope I can try this out soon!

Ray


Be careful here, however. To display "glide to finish", GNII needs to
understand exactly which turnpoints you've been to, and which ones you
still have to complete. If -- as we always do -- you punch in a few
alternatives as you end a MAT, trying to figure out a sequence which
will use up the available time, it is very easy for GNII to get
confused, and not know which turnpoints have been completed and yet to
go. If you punch in a few "glide to" options on the way, that can also
confuse it as GNII sometimes uses that as a signal that you have
indeed rounded a last turnpoint.. For example, suppose you're flying
over A on the way to turnpoint B, and A is the turnpoint following B.
You get low and wonder if you can make it back to A so you punch
"glide to A" as a landpoint. This tells GNII that you turned B, even
though you haven't.

Alas GNII does not (yet!) have a manual override on which turnpoints
have/have not been reached, so sometimes the only solution is to kill
the whole task, and then start a new one, with only the remaining
turnpoints.

John Cochrane