Thread: GPS 430 or 480?
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Old November 3rd 04, 03:39 PM
Dave Butler
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Lee Elson wrote:
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.


Aha! Very interesting. There was an earlier thread about this and I never did
understand how this works. If anyone has any more detail, I'm interested in
learning about it. My partners and I are considering the GNS-480.

Dave