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Vic-Maui Tactics RVYC, February 23, 2002 9am start 30 minutes including questions Presented by: David Shore This presentation is available.

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Presentation on theme: "Vic-Maui Tactics RVYC, February 23, 2002 9am start 30 minutes including questions Presented by: David Shore This presentation is available."— Presentation transcript:

1 Vic-Maui Tactics RVYC, February 23, 2002 9am start 30 minutes including questions Presented by: David Shore david@davidshore.com This presentation is available for download from www.davidshore.com/VicMaui/VicMauiTactics.pptwww.davidshore.com/VicMaui/VicMauiTactics.ppt Copyright protected, Galvin Enterprises, Inc. Reproduction forbidden without permission.

2 Vic-Maui Tactics Topics Race Prep Start and Strait Polar Speeds Where to Enter Trades Tatoosh to Feeder Trades Feeder Trades and Trade Winds Finish Resources Questions.

3 Vic-Maui Tactics Race Prep Ensure all drivers know your boat’s downwind polars for 5 to 25 knotspolars Watch weather trends in the months before the race, consider downloading historical data from the NOAA ArchiveNOAA Archive Consider starting race diet and sleep rotations the day before the race Get to the starting area early – it can take 45 minutes from harbour – do some sail handling to shake out the jitters Back down on the start to clear any kelp and check the tide Take VHF weather from Sherringham Point and Race Rocks and add to your log Determine wind at Race Rocks, might need to look for Port Angeles smoke stacks Topics Race Prep Start and Strait Polars Enter Trades? Tatoosh to Feeders and Trades Finish Resources Questions.

4 Vic-Maui Tactics Start and Strait Go for the Sea Q trophy for best start! Flood tide often parallels the start line – if winds are light, beware of the downstream end Windward side of the line is usually favoured Topics Race Prep Start and Strait Polars Enter Trades? Tatoosh to Feeders and Trades Finish Resources Questions Shortly after the start, check speed and cover closest competition.

5 Vic-Maui Tactics Start and Strait West wind usually follows geographic bend: starboard lifts near William Head Wind Go through Race Rocks and look for back eddies between Church Pt and Beachy Hd. Eddies Lifts Start Topics Race Prep Start and Strait Polars Enter Trades? Tatoosh to Feeders and Trades Finish Resources Questions.

6 Vic-Maui Tactics Start and Strait East wind usually rises over William Head leaving light patches Wind Light Go through Race Rocks unless flood is strong. Look for back eddies between Church Pt and Beachy Hd. Eddies Start Topics Race Prep Start and Strait Polars Enter Trades? Tatoosh to Feeders and Trades Finish Resources Questions.

7 Vic-Maui Tactics Start and Strait Usually best to go to US side, but you will initially lose pace to Canadian side boats Stay away from Pillar Point and from within one mile of US shore, especially at night Floods stronger Ebbs stronger Light wind, Kelp Topics Race Prep Start and Strait Polars Enter Trades? Tatoosh to Feeders and Trades Finish Resources Questions.

8 Vic-Maui Tactics Start and Strait Winds often get light at night, stay more than a mile from shore, cover right side Very light at night Topics Race Prep Start and Strait Polars Enter Trades? Tatoosh to Feeders and Trades Finish Resources Questions.

9 Vic-Maui Tactics Polar Speeds Polar Diagrams are derived from a VPP for each boat. They help to determine the trade-off between speed and distance. Downwind polars help navigators estimate the optimum wind angle in a variety of wind speeds Masthead boats can generally sail deeper downwind angles Polars are available from US Sailing and can be programmed into your instruments Topics Race Prep Start and Strait Polars Enter Trades? Tatoosh to Feeders and Trades Finish Resources Questions.

10 Vic-Maui Tactics Where To Enter Trades Work backward from Maui to determine best point to enter trades Keep from the laylines to maintain options 30N Lay lines Polar Angles Trade Winds High Trade winds usually form at 30N Topics Race Prep Start and Strait Polars Enter Trades? Tatoosh to Feeders and Trades Finish Resources Questions. 140W

11 Vic-Maui Tactics Tatoosh to Feeder Trades Sail to the point where you want to enter the trades (around 30N)enter the trades Winds between Tatoosh and the feeder trades will be light and variable. Boat speed is usually more important than direction (which will probably take you south) High 30N 45N Trade Winds Topics Race Prep Start and Strait Polars Enter Trades? Tatoosh to Feeders Feeders and Trades Finish Resources Questions.

12 Vic-Maui Tactics Feeder Trades and Trade Winds Plot the high twice a day and watch for trends 30N 45N High Trade Winds A compact high makes the shortest route tempting… Sail downwind polars, avoid heating up for speed records Topics Race Prep Start and Strait Polars Enter Trades? Tatoosh to Feeders Feeders and Trades Finish Resources Questions.

13 Vic-Maui Tactics Feeder Trades and Trade Winds …But if you get stuck inside when the high expands or moves east, eastern boats will pass with more wind. 30N 45N High Trade Winds And if it does get lighter, your polars will tempt you to heat up, further into the high Topics Race Prep Start and Strait Polars Enter Trades? Tatoosh to Feeders Feeders and Trades Finish Resources Questions.

14 Vic-Maui Tactics Finish Tide Finish X Twice Trades Keep an eye on the GPS rather than landmarks; the tide will push you west Wind in the channel is twice the trades, except dawn, when quite light in lee of island ‘Visual’ Course steered Topics Race Prep Start and Strait Polars Enter Trades? Tatoosh to Feeders and Trades Finish Resources Questions.

15 Vic-Maui Tactics Resources Weather links: www.davidshore.com/weatherwww.davidshore.com/weather Includes Stan Honey, WeatherGuy, DS articles, 2000 Roll Call Logs and this presentation. Topics Race Prep Start and Strait Polars Enter Trades? Tatoosh to Feeders and Trades Finish Resources Questions.

16 Vic-Maui Tactics Questions? Have a safe, fun and fast trip! Topics Race Prep Start and Strait Polars Enter Trades? Tatoosh to Feeders and Trades Finish Resources Questions.


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