SeeYou - "Calculate minimum distance to next observation zone"

[Tom]

SeeYou has an option in the task window called "Calculate
minimum distance to next observation zone" Does anyone know
what calculation this uses? Say I fly 20 miles west to turn
1 on an AAT task with 5 mile areas. Turn 2 is 6 miles
north of the midpoint of the first leg, but I fly straight
back home east on the first leg, bypassing turn 2 to the
south. I would expect the closest I got to the second turn
area was at the midpoint of the first leg on the way back
home , so my distance is 30 miles? SeeYou seems to be doing
something other than this. As I make the 2nd turn area
larger, the distance SeeYou calculates gets longer. Can
anyone explain?

[Marcel Duenner]

Tom > wrote in message >...
> SeeYou has an option in the task window called "Calculate
> minimum distance to next observation zone" Does anyone know
> what calculation this uses? Say I fly 20 miles west to turn
> 1 on an AAT task with 5 mile areas. Turn 2 is 6 miles
> north of the midpoint of the first leg, but I fly straight
> back home east on the first leg, bypassing turn 2 to the
> south. I would expect the closest I got to the second turn
> area was at the midpoint of the first leg on the way back
> home , so my distance is 30 miles? SeeYou seems to be doing
> something other than this. As I make the 2nd turn area
> larger, the distance SeeYou calculates gets longer. Can
> anyone explain?

The achieved distance is from Start via Turn1 to Best Marking Point.
The Best Marking Point is the point from which you have the shortest
distance to fullfill the task. So Best Marking Point is not half way
home because you will find that the minimum distance from your track
via Area2 starts somewhat past halfway home. Rough guess it must be a
bit less than 9 miles from home assuming a 4 mile radius for Area2.

Regards
Marcel

----------
Why walk when you can soar?

[Tom]

(Marcel Duenner) wrote:

>The achieved distance is from Start via Turn1 to Best Marking Point.
>The Best Marking Point is the point from which you have the shortest
>distance to fullfill the task.

Thank you. That seems to match what SeeYou is doing.