Saturday, October 29, 2011

VOR 70s & J/24 Style Decks!?

Volvo 70 Puma Mar Mastro sailing off Newport, RI- Ken Read skipper (Alicante, Spain)- Yes, according to Ken Read (he would know, of course)!  And, there are significant design differences, too.  Ken Read (USA), skipper of PUMA Ocean Racing, provides his observations of the fleet-

"One of the best parts of participating in a development class is when the boats break out of the shed and you see all of the parts and pieces that others have thought of…and they in turn see what you have done. We went with as low a CG as possible with our entire program. Deck and cabin house design were done to get the weight low and to make sure we kept the all up boat weight at or below the minimum. A couple of the new boats went with "J-24" style decks with no cabin house for a lower windage look. It is all a wash probably, but we like where we ended up.

Abu Dhabi also went with an open cockpit design to get their sail stack lower. We think that the new rules concerning less sails and the lack of being able to fill the very aft compartment in the boat with gear in heavy downwind conditions dissuaded us from going open cockpit. We felt we needed the stacking area downstairs, area that an open cockpit wouldn't give you.

Camper's adjustable headstay system has been a major topic. While the rest of the fleet pinned their headstay at one length, Camper has a hydraulic ram to adjust the rake of the mast in different conditions. For sure the rest of the fleet read the rule in a way that you couldn't do this, but the rules makers had a different idea.

The Camper boat is also different with the daggerboards behind the keel and mast. The rest of the fleet has gone in the other direction. Our daggerboards are actually further forward than even Ericsson 4 had last race - the winning Juan K design. All the Juan K-designed boats - us, Telefonica and Groupama - have negative dihedrals on the daggerboards, also a new look for the class (bottom of board angles toward each other).

The hull shapes have all gone fuller forward. The three Juan K boats are noticeably fuller forward than even Ericsson 4. A very flat forward section underwater with a distinct forward rocker is clearly there to try and get the bow out of the water at pace. Abu Dhabi is even more extreme as their huge bow section is certainly designed for "bow up" sailing, although they
seem to have less transom immersion than the Juan K boats. Camper on the other hand seems to be a bit of a development from our old PUMA boat with some new fullness forward, but not nearly where the other boats have gone.

Look for each boat to have their condition, including Sanya who may "own" light air in this fleet.  The die is cast. This is going to be a serious boat race with a ton of lead changes depending on the conditions."

Good Luck, Ken!  Fair Winds, Fast Sailing! The J/Community will channel positive energy to the PUMA MAR MASTRO gang around the globe!