Post by iconPost by BennyLava | 2009-09-08 | 16:00:29

Cvetan; your program advises HS and speed does not match the match. Actually now I get the best speed compared to advised direction with spinaker...

commenticon 6 Comments
Post by iconPost by BennyLava | 2009-09-08 | 16:08:40
duplicate post?
Post by iconPost by zezo | 2009-09-08 | 16:09:59
That's a limitation of the current data format used by the site. The optimum sail is calculated only for the discrete wind speeds in the polars.

In this case (TWA 140) at 16kt the best sail is LS and at 18 the best is HS, so for certain speeds and TWAs the optimum sail will be wrong.

But the speed should correspond to the one possible with the real best sail.
Post by iconPost by BennyLava | 2009-09-08 | 18:33:04
Thanks for the quick response Cvetan. I understand but before the optimizer speed seems to match the game?
Post by iconPost by zezo | 2009-09-08 | 20:01:37
The difference exists only at certain wind speeds/angles. And different races use different polars.

With the PRO polars being artificial you never know what will come up in the next race - see what I've written in the first reply about this race here

In the VOR everything was perfectly in sync because polars were smoother and players had 9 months to reverse engineer and document all the quirks. We'll have to live with minor differences for shorter races - just don't trust the tool blindly about everything it says (you should not do that even if it was perfect)
Post by iconPost by zezo | 2009-09-08 | 21:19:22
I've found one more off-by-one error in my boat polars. That won't fix the 'best sail' issue, but the boat speeds should match now.
Post by iconPost by BennyLava | 2009-09-08 | 21:29:29
Speed matches the game now, cheers!
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how to convert Grib files to Grib2?
3
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VSR, XP points
7
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Predicted times
3
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Nord Stream *3*
11
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Game on 12Z, but Zezo still working with 06Z
3
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race wait points
1
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special boats?
7
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VR Dashboard in Firefox?
6
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ESCARGOT CLASS
11
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Los Angeles - Honolulu
26
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Rounding a Buoy
12
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VR Waypoint Heavy Bug Reporting
3
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Time of ending Jules Verne
4
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Shore detection by Zezo
2
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Nord Stream Race 2
7
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Trying to Break the VR Map Mistery !
3
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Navigating to "xxx.0" TWA
26
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Tara4 - no refresh
2
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Jules Verne: Inconsistency of headings and speeds, simulation !!
5
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VR, Zezo, Qtvlm card offsets
2
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Island's coordinates
34
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Tara Ocean 4
6
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Solo Maitre Coq
21
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Adjustable timeshift ?
3
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gate crossing question
7
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Expanded View on PC
3
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Panic at VR Nord
7
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Delays during the sail changes, or directions changes
3
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(Game wind = Zezo wind ) ⍯ (Grib winds = Windy.com)
7
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VR ending the ELO ranking.
34
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NMEA feed
128
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Dashboard Map Track Label not including the segment.tag
5
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VR ingame time
6
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VIRTUAL REGATTA and Phillip Ganier. Worst and worst every day...
7
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beta.realsail.net
2
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Escort Frigate
6
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Out of memory. If you are the developer of this content ....
17
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Question about GFS Grib
5
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RORC Caribbean 600
14
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sliding VSR
16
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Trying to use Zezo to select best combination of sails to select
7
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TARA OCEAN 3
9
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RORC Transatlantique Race
6
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Game appears stuck on 00Z weather from yesterday
4
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Sydney to Auckland
28
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Personal Message pages deleted
7
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New zezo fonction
2
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VR Ranking 2021
7
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Autosail malfunction
3
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Comments from a newbie to "long term" routing
1
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Massive thanks to Cvetan
7
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Fleet section mode record not working
2
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Possible routes on the Map tab
3
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Purple skippers on VR Dashboard
3
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UTC or CET time ?
2
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multiple routes?
2
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Real Sail
4
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Map a little gloomy
8
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Trophée Jules Verne - Route à l'envers ?
2
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Looks like weather updates offline for next 18h
26
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Bring the good old days back
7
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All.grib 0.0k ?
9
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different speed
3
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Strange 0.5 mille VR Scale
3
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Just an idea for a new feature...
7
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Connexion impossible
1
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Donations
7
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New leader - seems to be using Zezo
38
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Bravo Zezo
4
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zezo : Huge job - Huge thx
2
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Difference between boat speed display on VR, dashboard and polar curves
7
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Vendée Globe: Track lines falling too short of ischrones
8
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Tara Ocean
29
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VR winds currently not up to date ?
1
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"Sails Change" within the Programming
3
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RORC Transat finish moved to Antigua
3
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Weather update not appearing...
19
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