Please select your home edition
Edition
Barton Marine 2019 728x90

The Appliance of Science

by Penny Haire on 10 Sep 2010
Localised differences in current - Rolex Big Boat Series and Melges Worlds San Francisco Penny Haire
Local knowledge of the strong and variable currents found in San Francisco has always been the preserve of a few ‘old salts' and some local pro-sailors. This is now set to change as Tidetech release a new tidal current model of the Bay which shows all the features and eddies of the tidal flow in incredible detail.


The high resolution model gives data about the current every 100m, at 30 minute time steps and can accurately predict the turn of the tide within five minutes. It even shows the effect of localised tidal acceleration, which can lead to big differences in current over small distances. Imagine what this will do for your tactics!


The model has been produced for by Tidetech's Dr Roger Flather, one of the world's most respected and experienced ocean scientists. He was assisted by Dr Roger Proctor who has produced tidal models for the UK Olympic Team for five Olympic Games.


The model is available now for competitors in GRIB and PDF format for the Rolex Big Boat Series and Melges 32 Worlds.

Palm Beach Motor YachtsCyclops Marine 2023 November - FOOTERDoyle_SailWorld_728X90px_cruise BOTTOM

Related Articles

How Seldén Carbon Masts are made
I took a look around the Seldén Mast factory with Richard Thoroughgood to find out more I took a look around the Seldén Mast factory with Richard Thoroughgood from Seldén to find out a bit more about how the carbon tow reels become the masts that we use when out sailing.
Posted on 12 May
SAY it with intent! SAY it in carbon…
You know, you might also have to SAY it in epoxy. You know, you might also have to SAY it in epoxy. Get all that, and you are certainly someone who needs to know about SAY Carbon Yachts. It's all about efficiency, acceleration, pace, and the amount of horsepower required to get there.
Posted on 8 May
Night sailing, Transat Paprec, Congressional Cup
Night sailing, encountering light airs in the Transat Paprec, Congressional Cup We bundled up as the last of the rays sunlight dipped below the Olympic Mountains and night quietly fell on Puget Sound. We'd been racing for about twelve hours in the Seattle Yacht Club's Protection Island Race (April 26), and we were getting tired.
Posted on 6 May
For the love of slightly larger, even faster boats
Bring it on. No chicken chutes allowed. Celestial, the newest Cape 31 in Oz is up and racing Thank you. You have let For the love of small, fast boats run before the breeze like a superlight planning hull under way too big a kite, with immense sheep in the paddock, and the Sailing Master grasping the flare gun in his pocket... No chicken chutes.
Posted on 4 May
Touching base with Erden Eruç
Erden Eruç on his 2026 Golden Globe Race campaign Adventures come in all sizes, scales, speeds, and price tags. My longtime friend and sometimes shipmate Erden Eruç was the first person to complete a human-powered solo circumnavigation. He's now turning his attention to the 2026 Golden Globe Race.
Posted on 1 May
The Allure of Timber
The longevity, and sheer beauty, of boats made of wood In these days of exotic materials, high modulus carbon and ultra lightweight construction, it's possible to overlook the longevity, and sheer beauty, of boats made of wood.
Posted on 29 Apr
A look inside the Spirit Yachts yard
A close look at what makes their yachts unique Traditional skills in boatbuilding could be regarded as a lost art from a bygone era. In the world of fibreglass and carbon, the joinery and laminating techniques of wood ribs and cedar strips are a thing of the past.
Posted on 28 Apr
Transat Paprec, Classics, US Sailing, Cup news
Some parts of North America are experiencing a faster approach of spring's warm tidings than others While some parts of North America are experiencing a faster approach of spring's warm tidings than others, the offshore racing action is plenty hot in the Transat Paprec.
Posted on 22 Apr
Make me smile even wider and brighter
What's better than writing about a great programme to get people into yachting? Only one thing... What's better than writing about a great programme to get people into yachting? Well, how about actually speaking with a former participant who has then gone on to work in the industry. That's what!
Posted on 22 Apr
Cup bust-ups; SailGP time-out
A few situations that have been on the build for a while all came to a head within the same week. It has been a tumultuous few weeks on the NZ sailing scene and internationally. A few situations that have been on the build for a while all came to a head within the same week.
Posted on 15 Apr