ETNZ's new AC72, LINES PLAN, NEW DESIGN, AMERICA'S CUP 2013, NZ's AC72 CATAMARAN, SECOND TNZ CHALLENGER 2013

SCOOP!

HULLS OF ETNZ's new ac72 (2013)

©2013 - François Chevalier

Drawing a plan of the hulls of ETNZ’s new AC72 has not been without problems.  The available photos shot with a wide-angle lens are distorted.  More than that, the hulls were transported inclined in their cradles, ready to be fitted to the cross-beams.  However, with a little patience and careful study, it is possible to draw up a lines plan and note some changes from the hulls of ETNZ’s first boat.

©2013-François Chevalier

The new bow is thinner, with a flat-bottomed section within the first 3 meters to help elevate the bow during acceleration.  The inboard side of the cockpit coaming is cut down, to the degree allowed by the Class Rule, while the outer sides are better protected. 

The shape of the hulls in a sense matters only a little in most situations, to the extent that the boat sails above the water much of the time, aloft on its foils.  The hulls are specially designed for transitional maneuvers.

When the cross beams and the new wing are seen, we will complement these drawings!

REPAIRED WING ORACLE AC72, NZ CORE BUILDERS COMPOSITES, WINGSAIL, CATAMARAN, AMERICA'S CUP, AC72, AC 72, WING,

SEASONS GREETINGS FROM FRANCOIS AND JACQUES

THE REPAIRED WING OF THE ORACLE AC72

©François Chevalier 2013

NZ Core Builders Composites has sent the wing of the second Oracle catamaran, which set off from Auckland enroute to San Francisco on Christmas!  It will get new flaps and be fitted on the restored cat that will be re-launched next February.

If the hulls of the catamaran appear to have some shortcomings – very narrow forward profiles and lack of transverse stiffness – their aerodynamics and finishes are particularly successful.

With respect to this wing – its thickness, simplicity, flexibility, form and profile – improvements can be seen.

Oracle Team USA’s second cat – with new wing and hulls – is well under construction. We will certainly make a comparative analysis when they are revealed!

MEILLEURS VŒUX 2013 DE FRANCOIS CHEVALIER & JACQUES TAGLANG

L’AILE DE L’AC72 D’ORACLE RÉPARÉE

©François Chevalier 2013

Le chantier néo-zélandais Core Builders Composites a reconstruit l’aile du futur defender de l’America’s Cup et a pris la route pour San Francisco à bord d’un cargo ce Noel!

Elle recevra de nouveaux volets et retrouvera le catamaran réparé et remis à flot début février 2013.

Si les coques du catamaran présentaient quelques lacunes - trop de finesse sur l’avant et manque de raidisseurs transversaux - l’aérodynamique et les finitions étaient particulièrement réussies.

En ce qui concerne cette aile, la finesse, la simplicité, la souplesse, la forme et les profils sont ce qui se fait actuellement de mieux.

Le second bateau, aile et coques sont déjà en construction. Nous ne manquerons pas de vous faire une analyse comparative.