Facebook

Login

Support Sailonline

If you haven't already - join the SAILONLINE YACHT CLUB!

Please also consider making a donation - all amounts are greatly appreciated!

Board » Flag Officers » Races » Victoria-Maui Tactics Articles

Posted by
76Trombones


Users avatar

Posts
362
Registered at
2009-08-03 18:04:56
2010-06-29 13:58:19 - Victoria-Maui Tactics Articles
The website for this year's running of the Vic-Maui Yacht Race has some interesting reading on tactics and descriptions of past races.

The North Pacific High (visible as the big low-wind area at ~40N in SOL, wind circles clockwise) is a semi-permanent feature throughout the summer that typically dictates routing for the race.

http://www.vicmaui.org/resource?articleid=45
Posted by
captjack1942


Users avatar

Posts
239
Registered at
2008-01-18 03:24:03
2010-06-29 21:25:55 - Re: Victoria-Maui Tactics Articles
It should be noted that the Pacific High (as the area of low to no wind is called) has been staying pretty far north this year. If this pattern holds up, this could be a year of record times. Not only for the Vic/Maui race, but also for the Pacific Cup race.

http://www.pacificcup.org/

--- Last Edited by captjack1942 at 2010-06-29 21:27:46 ---
Posted by
Exmeromotu


Users avatar

Posts
71
Registered at
2008-12-10 15:22:17
2010-07-02 15:44:14 - Re: Victoria-Maui Tactics Articles
Public Service Anouncement:
Courtesty of Bluewater Racing, see attached pic, time of pic 1435Z

Optimal Route is in black, the closer you stay inside the red area the better...

2nd Pic Optimal Route is in yellow.

3rd Pic for 7/3/2010 12Z

4th Pic 7/4/2010 12Z (from Gilles (leader) Position)
Optimum Route is in Yellow (Follow the Yellow Brick Road ;-) )
Wide red area shows that there are plenty of routes that will get you pretty quick to Maui

5th Pic for 7/5/2010 12Z (from my position)
Optimum Route in Yellow
The Red Zone is a LOT Wider than from last update, banging a corner might just be the ticket...

6th Pic Optimum Route in Orange with reverse isochrones in 2 hour time steps time of fix 7/6/2010 0715 UTC

Regards

--- Last Edited by Exmeromotu at 2010-07-03 00:26:54 ---

--- Last Edited by Exmeromotu at 2010-07-03 14:36:14 ---

--- Last Edited by Exmeromotu at 2010-07-04 16:07:14 ---

--- Last Edited by Exmeromotu at 2010-07-05 14:16:46 ---

--- Last Edited by Exmeromotu at 2010-07-06 08:02:06 ---
Attachments
Posted by
Gilles


Users avatar

Posts
127
Registered at
2009-07-18 11:05:22
2010-07-04 19:15:50 - Re: Victoria-Maui Tactics Articles
Nice that you make the homework for me.... but difficult to read the angle or the latitude on the graph :-(

Cheers!!!
Posted by
76Trombones


Users avatar

Posts
362
Registered at
2009-08-03 18:04:56
2010-07-06 16:40:21 - Re: Victoria-Maui Tactics Articles
Here's another look at reverse isochrones, calculated from Exmeromotu's position and .5deg grib.us weather. Colour bands/contours are 2h intervals.

Tight race!
Attachments
Posted by
Exmeromotu


Users avatar

Posts
71
Registered at
2008-12-10 15:22:17
2010-07-06 18:47:23 - Re: Victoria-Maui Tactics Articles
Impressive!! How did you get the fleet positions into Bluewater?
Posted by
76Trombones


Users avatar

Posts
362
Registered at
2009-08-03 18:04:56
2010-07-06 19:00:49 - Re: Victoria-Maui Tactics Articles
Not bad eh? I'm impressed with how flexible bluewaterracing is.

http://sailonline.org/googleearth/race_245_data.kml

I imported the data from the kml. You can bring it in as route data and each boat will show up as mark.

To import as position data (each boat becomes it's own route, can be "routed to finish" and if you were to update regularly would have all the tracks saved as well) I converted the xml/kml to csv/text.

Pretty neat - since all the course data,config,polar etc are text files for very little effort you should be able to pretty much fully integrate BWR with SOL. Marks/courses can be loaded from the kml as well, so no need to manually define the race.

Posted by
Exmeromotu


Users avatar

Posts
71
Registered at
2008-12-10 15:22:17
2010-07-07 07:06:01 - Re: Victoria-Maui Tactics Articles
For whoever is interested here's a copy of the Riptide 50 polar for Bluwater

--- Last Edited by Exmeromotu at 2010-07-07 07:07:18 ---
Attachments
Posted by
Schakel


Users avatar

Posts
183
Registered at
2008-12-19 09:19:00
2010-07-07 07:15:39 - Re: Victoria-Maui Tactics Articles
Hmm, odd. I get slightly different figures using the polar I get from the client Help tab's Boat Polar option.

For instance, at ws 10, twa 30 you have a bs of 6.17 whereas I get a bs of 6.27.

Wonder how that happened?

Philip

Please login to post a reply.

Races

Next Race: 00d 00h 00m

Current Races:

Round Hong Kong TIMED Race 2025

This month’s TIMED race takes us to the hectic, bustling sea lanes of the South China Sea for a 118 nm race beginning and ending in Hong Kong rounding several of the 260 nearby islands along the way. The boat for this race is the South African built Cape 31. This is a TIMEDrace so you may RE-REGISTER HEREto try again after finishing a run. You will have 13 days and 11 hours to test your skill and decision making after the race opens.
Race #1964
INFOby brainaid.de
Cape 31 Particulars
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking:
TRQ4 - TRCH - SUPSOL - SYC
RACE CLOSE: Saturday,
22 November at 23:00 UTC
Race starts: Nov 09th 12:00 Registration will open soon
▶ Flash
GO TO RACE

Red Eye - Frisian Isles Trophy 2025

For our final “Red Eye” race, we invite you to cross the Noord Zee to the Wadden Zee, where a 160nm course around a few sandy islands raced on SOL only once before in 2010 awaits you. We don’t have a replica of Erskine Childers’ Dulcibella in our boathouse, and in any case if we took her out, we might well contract more than one “Red Eye”, so instead we’ll race our very own riddle of the sands in Farr 400s!
Race #1848
INFOby brainaid.de
Farr 400 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: SYC - RED

RACE CLOSE: Tuesday,
November 11 at 2300 UTC.
Race starts: Nov 05th 12:00 Registration Open!
▶ Flash
GO TO RACE

Fernando de Noronha to Faroe 2025

The RWW Series concludes with a spectacular journey from Fernando de Noronha to the Faroe Islands, a legendary destination in the wild North Atlantic. Panning 4,100 nautical miles, this leg will be a true test of endurance, strategy, and sheer determination. Also the penultimate leg of the 2025 Ocean Championship, it’s your chance to prove your mettle against the sea, the wind, and yourself. We’ll be racing aboard the Ragamuffin 100, a vessel built for speed and challenge — demanding planning, precision and grit from every sailor on deck. Do you have what it takes to master the Northern Atlantic?.
PRIZE: SMPF
Race #1960
INFO by brainaid.de
Ragamuffin 100 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: RWW - OCQ4 - OCCH - SUPSOL - SYC
Race starts: Nov 03rd 11:00 Registration Open!
▶ Flash
GO TO RACE

ORCV Melbourne to Devonport Race 2025

Welcome to the legendary Rudder Cup, Australia’s oldest and most storied yacht race—sailed for over 110 years across the challenging Bass Strait from Melbourne to Tasmania. Organized by the Ocean Racing Club of Victoria, this 195nm classic tests sailors’ skill, strategy, and endurance against the unpredictable Southern Ocean. This year, our SOLers will be racing the timeless Swan 36, Nautor’s very first production yacht—a Sparkman & Stephens masterpiece renowned for her elegance, balance, and seaworthy performance. Get ready for a true ocean racing adventure!
Race #1951
INFO by brainaid.de
Swan 36 PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: SYC
RACE CLOSE: Saturday,
November 8 at 2300 UTC.
Race starts: Oct 31st 03:30 Registration Closed
▶ Flash
GO TO RACE

Sinbad by Balloon 2025 - Carnarvon to Dondra


From here, our home in Bharatavarṣa is now north west of us – said Sinbad to his fellow balloonists. Perhaps we can ride the wind first further north, and then catch the winds that every year bring the rain, perhaps not. It’s 2600nm and we could be aloft awhile, so, Master el-Quarters, victuals only, no sandbags, provisioning the giant hamper. It will be not a picnic!
Race #1886
INFOby brainaid.de
SOL Balloon PARTICULARS
WX Updates:
0430 / 1030 / 1630 / 2230
Ranking: SYC - SBB
Race starts: Oct 15th 11:00 Registration Closed
▶ Flash
GO TO RACE

Go to race archive

SYC Ranking

  1. Sailonline Yacht Club Member KaSToR
  2. Sailonline Yacht Club Member CriticalHippo
  3. Sailonline Yacht Club Member WRmirekd
  4. Sailonline Yacht Club Member vida
  5. Sailonline Yacht Club Member CollegeFund
  6. Sailonline Yacht Club Member Panpyc
  7. Sailonline Yacht Club Member BRENTGRAY
  8. Sailonline Yacht Club Member Sax747
  9. Sailonline Yacht Club Member Kipper1258
  10. Sailonline Yacht Club Member brellis

View full list

Series

Mobile Client

SYC members have the benefit of access to our mobile/lightweight web client!

The mobile client