Sandy Trevor wrote in message
snip

One more really neat featu it sizes holding patterns based on your
ground speed so you'll do 1 minute legs if you just follow the line!
--Sandy, Worthington OH

Actually it does more than that. Using it in a stiff wind last week, I
found that it appears to take note of either your ground speed
variation in the turns or your outbound versus inbound ground track
and if it finds a difference, it assumes that your holding pattern
needs wind correction. Then it actually *draws* a holding pattern with
sides that are not parallel, just as you would fly in a crosswind.
This can have a downside in that if you vary your speed or track for
some other reason, it would draw an incorrect pattern.