Sail-World.com  Friday 19 September 2014

Home Graphical | News Text | Powerboat-World | MarineBusiness | Newsletters | SW Aus | NZBoating-World | Emirates TeamNZ | Features | Photo Gallery | FishingBoating | Newsletter Subscription Here | Search Sail-World


sail-world.com -- America's Cup: Can Emirates Team NZ foil upwind? + Video

America's Cup: Can Emirates Team NZ foil upwind? + Video    
Thu, 18 Jul 2013


Sail-World's resident photo and videographer, John Navas, was out on the water today and captured video of Emirates Team NZ's AC72 sailing a close reach - near windward course while foiling.

Speed is dramatic - 30-35kts clocked off the chasing powerboat - compared to the usual 20-23kts seen in racing to date.

Note in the still shot above, the leeward hull is clear of the water, but a significant part of the foil is immersed - reducing leeway. To achieve reasonable VMG, leeway must be kept to a minimum.

Something for the aficionados to work out is whether foiling upwind, sailing faster and lower (and carefully playing the shifts) is better than slower and higher.

The estimated numbers are:

Course over ground: 300° magnetic.
Wind direction: 245° magnetic (TWA 55° - it is not known what the 'normal TWA is for an AC72, but a monohull is 45°).
Wind strength: 12-14 kts
Sailing angle is reported at 300 degrees.

Video quality is a bit jerky, as would be expected at this speed.

<: embed_code :>

by John Navas



Our advertisers are committed to our sport, please support them! (Graphics)
Contact us , ph: +61 2 8006 1873, , fax: +61 2 8076 0459 or complete our feedback form. View our Privacy Policy. Photographs are copyright by law, if you wish to use a photograph from www.sail-world.com, please Contact us. [Go Home(Graphics)]
Make sail-world.com Australia my default page.    Make sail-world.com Cruising International my default page.  Make sail-world.com Cruising Australia my default page.  Make sail-world.com Asia my default page.   Make sail-world.com New Zealand my default page.   Make sail-world.com UK my default page.   Make sail-world.com USA my default page.  


Visit another region : Sail-World Australia    Sail-World Cruising International   Sail-World Cruising Australia   Sail-World Asia   Sail-World New Zealand   Sail-World UK   Sail-World USA  

Onesails.com - Workforce
OneSails is the culmination of over 35 years of experience accumulated by our team in design and technology applied to sail-making.
[More info]
http://www.onesails.com

VicSail Sydney
Vicsail Sydney Pty Ltd, launched into the Australian sailing fraternity in 1983 and has been sailing strong ever since. At Vicsail, “We Sail the Boats We Sell”.
[More info]
http://www.vicsailsydney.com.au