Wednesday, March 29, 2006

Twin keel ?

We will feature later today a very interesting and incisive article on the use of a twin keel in the America's Cup, written by our good friend Patrick Carpenter, New Zealander and adopted Valencian. Patrick is extremely knowledgeable about America's Cup yacht design as he is in charge of the modification of NZL-38, right here in Valencia.

In the meantime, take a look at USA-76 and USA-87 being towed out of Port America's Cup on Wednesday morning, for the team's two-boat training and testing session. They were taken at the exact same spot, a few seconds apart. Even a layman can observe the differences in the painting of the hull.

USA-87 being towed out of Port America's Cup on Wednesday morning. Valencia, 29 March 2006. Photo taken by Valencia Sailing

USA-76 being towed out of Port America's Cup on Wednesday morning. Valencia, 29 March 2006. Photo taken by Valencia Sailing

2 Comments:

At 8:41 PM, Anonymous Anonymous said...

Hi,
I'm from Brazil and I was looking the pics. Seens like the USA-76 is longer from the mast to the bow than USA-87. You can see this looking at the forestay of teh 2 boats, in the USA-87 the forestay is closer to the bow than in the USA-76. So this can make the difference in painting, the white part of the hull is longer in the USA-76 due to its longer section. Am I correct? I can see lots of differences between the two boats, bow angle, maybe the USA-76 is longer than USA-87 as well.
Tahnks and keep the awsome work, I check the upadtes daily.

 
At 4:30 AM, Anonymous Anonymous said...

Forget the paint, it can throw you off. The reason the distance from the forestay to the bow is shorter on the new boat is because they have essentially eliminated part of the bow, therefore the need for the bowsprit, essentially they have eliminted a lot of weight forward, more weight for the bulb??. Comparing mast to furthest forward point (bow/bowsprit) and mast to forestay (J measurement), distance is pretty much the same. Comparing mast to aft waterline mast is slightly forward in the new boat. Should be very interesting

 

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