Thread: AT, TAT, MAT?
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Old October 16th 08, 12:22 AM posted to rec.aviation.soaring
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Default AT, TAT, MAT?

On Oct 13, 4:41*pm, "noel.wade" wrote:

I still don't see how this changes the problem with people coming in
under-time, if the raw time (before adding 15 minutes) still has to be
greater than the minimum task time...


Apples and oranges - the (now defunct) 15 minute rule flattened out
the points awarded as a function of time on course OVER AND ABOVE the
minimum time. It was an attempt to reverse out an implicit scoring
penalty due to the dilution of final glide speed into sustained cross-
country speed - longer flights got penalized more as the dilution
effect decreased.

The second topic has to do with flight management - being on time but
not under. The penalty for being under time is much more severe than
the hidden penalty for being over - you get marked to minimum time,
which is like averaging in zero speed for the time you are under.

Hope that makes sense to people.

9B