How does CC calculate results?

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6266
Posts: 197
Joined: Tue Aug 25, 2020 7:07 am

How does CC calculate results?

Post by 6266 » Sun Jan 31, 2021 2:48 pm

Hi,

I have uploaded first time a result of a CC-task

This is the task -> https://www.condor-club.eu/besttimes/0/?id=17424

I don't understand the results.

All competitors flew the same distance, so the only difference is the time / the speed.

The best one used the Ventus 3-15 with a speed of 142,09 km/h getting 1000 points.
I used the Ka6CR with a speed of 84,69 km/h getting 657 points.

If I set 142,09 km/h to 1000, 84,69 km/h will get 596 points (1000 / 142,09 * 84,69 = 596)

This task has handicapped scoring, so I correct the speed with the index (I should do this with the distance, but it's mathematically the same)

The Ventus has an index of 114, 142,09 km/h * 100 / 114 = 124,64 km/h
The Ka6 has an index of 82, 84,69 km/h * 100 / 82 = 103,28 km/h

If I set 124,64 km/h to 1000, 103,28 km/h will get 828 points (1000 / 124,64 * 103,28 = 828)

But I never get 657 points ...

Please can you post the formula to calculate the results? I searched the web, but found nothing else than that the index only corrects the distance. If there are other influancing factors it's good to know to choice the right plane for a competition.

Thanks for your answer

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dgtfer
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Location: Marseille - france

Re: How does CC calculate results?

Post by dgtfer » Sun Jan 31, 2021 2:52 pm

Just search for "glider FAI scoring rules". There a points for distance and points for speed...
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6266
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Re: How does CC calculate results?

Post by 6266 » Sun Jan 31, 2021 3:47 pm

Thanks,

need a Dr. in mathematics

Maybe I don't have to understand this all, thinking too much ... ;-)

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wickid
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Re: How does CC calculate results?

Post by wickid » Sun Jan 31, 2021 4:35 pm

Also if you have less then 2/3 of the handicapped speed of the winner you will only get distance points.

And the scores change with each upload because of the day factor.... It is all very complicated :lol:
PH-1504, KOE
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6266
Posts: 197
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Re: How does CC calculate results?

Post by 6266 » Sun Jan 31, 2021 5:28 pm

Thanks wickid,

but 103,28 km/h is more than 2/3 of 124,64 km (= 83,09 km/h), and my real speed without index (84,69 km/h) is it too.

Only without index I'm under 2/3 (84,69 km/h < 142,09 *2/3 (= 94,73 km/h)).

Strange

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