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lundi 20 août 2012

AMERICA - AMERICA'S CUP - 100 GUINEA CUP - SCHOONER YACHT AMERICA VICTORY, Cowes AUGUST 22nd, 1851 - 161st ANNIVERSARY, August 22nd 2012 - THERE IS NO SECOND - QUEEN VICTORIA - EARL WILTON - JOHN COX STEVENS - CAPTAIN DICK BROWN - GEORGE STEERS - AMERICA SAIL PLAN


August 22nd 2012: 161st anniversary of the America’s victory at Cowes, Isle of Wight!

... a pictorial history.



“Who is first?”
America!”
“Who is second?”
Ah, Your Majesty, there is no second.”


©François Chevalier - America's sail plan
©François Chevalier - America's lines - Sections can be seen in our book: America's Cup Yacht Designs, pp. 42 & 43

Queen Victoria

Although the population of Cowes could already see it with their own eyes, this probably apocryphal dialogue between Queen Victoria and her Signals Master marked the moment on 22 August 1851 that the unexpected news became official - the American rakish schooner yacht skippered by Captain “Dick” Brown had won the race around the Isle of Wight.


Schooner America off New York by James E. Buttersworth

Theodore Walter

Collection Jacques Taglang

 This legendary conversation demonstrates perfectly the stunned reaction of the entire membership of Britain’s Royal Yacht Squadron headed by commodore Lord Wilton.

Lord Wilton - Commodore of the RYS in 1851

Later that evening the crew of the America received their prize in the shape of a “luxuriant” silver bottomless ewer crafted by the Royal Jeweler Robert Garrard: the “One Hundred Guinea Cup” also referred to as the “Queen's Cup.” 

The America Cup (sic) 1874...
The following day the Queen herself stepped aboard the yacht to congratulate America’s ship-owner and American head syndicate John Cox Stevens, the Commodore of the New York Yacht Club.


John Cox Stevens - America's head syndicate

For the winners the Cup became the “Holy Grail” and a significant symbol of the emergence of the New World over Old Europe. The America’s sporting accomplishments had clearly demonstrated excellence in American marine technology.
America at the Nab Light, Isle of Wight
America - The Illustrated London News 1851

America - The Illustrated London News 1851

To encourage “friendly competition between foreign countries,” George L. Schuyler, the sole surviving member of the America syndicate, assigned this Cup to New York Yacht Club through a Deed of Gift. 

George L. Schuyler - America's syndicate member

The New York Yacht Club subsequently announced it would accept challenges for it from any organized yacht club of a foreign nation.

The first challenge issued by British tycoon James Lloyd Ashbury was raced in 1870. Some years later the trophy was known as the America’s Cup, its present name.

James Lloyd Ashbury, circa 1870


Next year, the 34th challenge will be raced in San Francisco. And, as the tradition of technological superiority remains since 1851 the basis for the America’s Cup, the “Holly Grail” should be raced aboard 72-foot (22-meter) wing sail catamarans.

©François Chevalier 2012 - New Zealand AC72

America’s Cup legendary status is still underway! More than ever…

Jacques Taglang






Schooner yacht America specifications


Winner of the "One Hundred Guinea Cup", August 22nd 1851, defeating 14 British yachts round the Isle of Wight, in a fleet race organized by the Royal Yacht Squadron.

Scarce image of the British cutter Aurora, second on August 22nd 1851...
Schooner Yacht America 1851

1851
USA
New York Yacht Club

Owner: Syndicate headed by John Cox Stevens, with Edwin Augustus Stevens, Hamilton Wilkes, George L. Schuyler, J. Beekman Finlay.

The yacht America winning the International Race, 1851, by Fitz Henry Lane

Keel schooner.

Builder: William H. Brown, 12th Street, East River, New York, USA.
Sailmaker: R.H. Wilson, New York and Port Jefferson, Long Island.
Mast/rig: William H. Brown.

George Steers, modeler of the yacht America, 1851

Modeler: George Steers of Great Neck, Long Island and New York.

Launched: May 3rd, 1851

Collection Jacques Taglang - Launch of the America - William H. Brown yard, New York
NOTA: when launched the America's hull was painted in white...

Captain Richard "Dick" Brown, skipper  and helmsman of the America in 1851

Skipper & helmsman: Captain Richard « Old Dick » Brown.
Afterguard: Horatio Nelson « Nelse » Comstock, mate. Robert Underwood, English pilot aboard, August 22nd 1851.
Crew: 14.

Fred S. Cozzens

Data:
Hull material: wood (white oak, locust wood, cedar, chestnut). White hull when launched. Hull painted in black at Le Havre, France, end of July 1851.

The Illustrated London News - Black hulled America... August 1851

LOA: 30,85 m
LWL: 27,39 m
Beam: 6,95 m
Draft: 3,33 m
Sail Area: 498 m2.
Displacement: 170 tons.
Rating: none.

Gleason - America ahead the British fleet - August 22nd 1851

Currier - Yankee Doodle...
The America by Vincent del Piano

Since her launching, May 3rd 1851 until July 27th 1901 -
51 races, 12 win.

1851, September 1st: sold to Lord John de Blaquière, England.
1856: sold to Viscount Templeton, RYS. Renamed Camilla.
1858: sold to Henry Sotheby Pitcher, England.
1860: sold as Camilla to Henry E. Decie, Royal Western YC.
1860 (Autumn): cruise of West Indies.
1861: arrived Savannah, Georgia, USA. Then returned to Europe.
1861 (December): sold at Jacksonville, Florida, to Confederate States Navy by Decie.
1862: found by Federal Navy, then involved in the civil war.
1870: refitted to sail the first America’s Cup challenge.
1870-1873: shoo ship at United States Naval Academy
1873: sold to General Benjamin F. Butler
1893: Paul Butler (son of General), owner
1897: Butler Ames, owner.
1917: sold to company headed by Charles H. W. Foster, NYYC.
1921: owned through America Restoration Fund – thanks to E. Jared Bliss - by Naval Academy. America berthed at Annapolis.
March 29, 1942: during record Palm Sunday snowstorm, shed over America’s hull collapsed. 1945: remnants of America and collapsed shed removed by clamshell crane and burned…

America was often altered: i.e. in 1886 by Edward A. Burgess (as designer, he won three times the America’s Cup in 1885, 1886 and 1887). Her rig was modified (fore topmast added).



America after alterations by Edward "Ned" Burgess, 1887


mardi 7 août 2012

WALLY - WALLY CENTO - WALLY CLASS - SCOW - MAXI SCOW - YACHT RACING - PROJECT - FRANCOIS CHEVALIER - BOX RULE - YACHT PLAN - YACHT DESIGN - LINES DRAWING - LUCA BASSANI

WallyCento and MaxiScow - a new concept



The author thanks Donan Raven for the translation of his text.



Publishing naval architect François Chevalier's original design for an out-and-out racer immediately reveals a great blend of today's most generalised trends for breaking speed limits as well as displays the author's great ability to look into the breadth of working concepts in yachting history and formalise a proposal that could establish herself as a capable prize winner, advocating the scow bow as tomorrow's cornerstone in building racing yachts. 
Donan Raven.
Mr. Chevalier writes:

I had had early etchings for these two 100ft projects, which I named MScow, laying on my draftboard since last summer, together with a Volvo Open 70 and an IMOCA Open 60. 
The two MScow projects
When the Volvo Ocean Race announced that future editions would use a one-design, I decided to finalise the two 100ft sailing yachts: a Wally Cento and a Maxi Scow.
WallyCento, lines and half-deck
WallyCento, sailplan
WallyCento, interior layout
©François Chevalier 2012
The reason to design yet another Wally lays in the designation of the WallyCento rule itself: owners remain keen on the combination of comfort, performance, modern design and bleeding edge technology in a yacht. Even if the Wally Cento open box rule forbids canting keels and includes a minimum displacement figure, she remains true to the Wally essence which has begot its prestigious fleet: simple handling, automated sailing systems, utterly flush decks, light and minimalist interior spaces.
MaxiScow, lines and half-deck

MaxiScow, sailplan

MaxiScow, interior layout
©François Chevalier - 2012

The "Record" designation of the MaxiScow version, which features a more lightweight displacement and a canting keel, rid of all the modcons and automation usually presented in Wallys, targets ocean records and line honours in crewed races such as the Newport-Bermuda, the Fastnet or the Sydney-Hobart.

 As featured in the wetted surface diagrams comparing the MScow concept with conventional monohulls when heeling, the key advantage of the MScow is her stiffness, sailing at an angle which would be three times smaller than a conventional yacht. On the one hand, the righting moment is a lot more efficient, whether or not she is fitted with a canting keel, and on the other hand, the keel remains in the centerline under sail: The result is the MSow's better ability in pointing to windward, by one or two degrees depending on configuration.

To improve the sailing platform's performance, the bowsprit can be orientated and the clew of headsails can be adjusted in the lateral plane.
WallyCento and Maxi Scow compared with conventional 100-footer
On a level plane, the lines of the WallyCento and MaxiScow are reminiscent of a windsurfing board.
On a heel, the angle of the wetted line with the centerline is a third of that of a conventional racing 100-footer.




As far back as the 1970s, I made a concept for a crossoceanic windsurf designated for a double-handed Transatlantic race. As for many projects of this kind, the model is still hanging on my office wall. The idea remerged ten years ago when I wrote an article investigating the orgins of planing hulls. The craze which governed the American skimming dishes at the turn of the twentieth century, with waterline length as the only limitation, had given me the idea to develop an IMOCA Open 60 for the Vendée Globe single-handed circumnavigation race.
 I decided to develop a progressive chine-bilged scow, and instead of a pram bow, I proceeded to cut away the stem very significantly to avoid wave slamming as much as possible. By tapering the bow both in height and in width, shocks with head waves are dampened significantly and the scow skims the surface immediately and displacing as little water as possible.
François Chevalier, August 4th, 2012


specificationsWallyCentoMaxiScow
naval architectureFrancois Chevalier YDFrancois Chevalier YD
buildcarbonfiber, built to WallyCento open rulecarbonfiber
Length Over All100ft (30.48m)100ft (30.48m)
Load Waterline Length87ft 7 in (26.70m)87ft 7 in (26.70m)
beam23ft 7in (7.20m)23ft 7in (7.20m)
draughtmaximum 20ft 4in (6.20m), minimum 14ft 9in (4.50m), dropkeel18ft 4in (4.50m) canting keel
displacement45 tonnes38 tonnes
air draught147ft 8in (45m)150ft 11in (46m)
mainsail + jib area6,370sqft (592m²)6,760sqft (628m²)
mainsail + gennaker area11,000sqft (1000m²)11,900sqft (1110m²)



dimanche 5 août 2012

WALLY - WALLY CENTO - WALLY CLASS - SCOW - MAXI SCOW - YACHT RACING - PROJECT - FRANCOIS CHEVALIER - BOX RULE - YACHT PLAN - YACHT DESIGN - LINES DRAWING - LUCA BASSANI


WALLYCENTO ET MAXISCOW :

UN NOUVEAU CONCEPT


Ces deux projets, MScow, accompagnés d’une version Volvo 70 et d’un 60’ IMOCA restaient sous forme de croquis sur une de mes tables à 
dessin depuis l’été dernier. 

Les deux projets MScow 

Mais lorsque les dirigeants de la Volvo ont annoncé un monotype, je me suis mis sur ma planche pour finaliser ce concept sur deux voiliers de 100’, un WallyCento et un MaxiScow.

WallyCento, plans de forme et demi-pont

WallyCento, voilure

WallyCento, emménagements
©François Chevalier 2012

Pourquoi un Wally de plus ? Il convient d’admettre que la formule Wally attire un grand nombre de propriétaires sensibles à un mélange de confort, de performance, de modernisme et de technologie de pointe. Même si la jauge WallyCento interdit les quilles basculantes, et impose un déplacement minimum, elle trouve son intérêt dans la formule High-teck du reste de sa flotte prestigieuse : manœuvres automatisées, ponts dégagés, voilures simplifiées, aménagements spacieux clairs et épurés.

MaxiScow, plans de forme et demi-pont

MaxiScow, voilure

MaxiScow, emménagements
©François Chevalier - 2012


La version Record, MaxiScow, plus légère et à quille basculante, dénuée des nombreux équipements de confort et d’automatisation des Wally, vise les records océaniques et une victoire en temps réel dans les grandes courses en équipage, Les Bermudes, Le Fastnet ou Sydney-Hobart.



Comme on peut le voir sur les dessins des comparatifs entre les flottaisons des MScow et monocoque classique à la gîte, l’avantage principal de ce concept est que le MScow navigue avec un angle trois fois moins important que celui d’un voilier classique. D’une part, le couple de rappel est beaucoup plus efficace, avec ou sans quille basculante, et d’autre part, la quille reste dans l’axe du voilier à la gîte. Il en résulte un meilleur cap au près de un à deux degrés suivant les configurations.

Pour améliorer les performances de cette plateforme, le bout-dehors est orientable, et le point d’amure des voile d’avant est réglable latéralement.







WallyCento et Maxi Scow contre 100’ Racing, comparaison    
 À plat, les lignes de formes du WallyCento et du MaxiScow sont celle d’une planche à voile.


À la gîte, l’angle de la flottaison avec l’axe du voilier est plus trois fois moins important que sur un 100’ Racing traditionnel.


Déjà, dans les années 70, j’avais conçu une planche à voile transocéanique, pour une tentative de traversée de l’Atlantique en double. Comme de nombreux projets de ce type, le model est resté accroché sur le mur au-dessus de mon bureau.

L’idée est venue alors que je rédigeai un article sur les origines des voiliers au planning, il y a une dizaine d‘années.

La folie qui a animé les architectes américains au tournant du XX siècle, lorsque la jauge s’est libérée des contraintes autres que la longueur de flottaison, avait fait germé en moi l’idée d’une maxi planche à voile de 60’ pour le Vendée Globe.

L’idée d’un MScow à bouchain plus qu’évolutif germe alors. Reste à modeler cette marotte pour limiter les coups de butoirs dans les vagues. En découpant cette étrave dans les deux sens, hauteur et largeur, le voilier amortit le choc, se soulève rapidement et glisse sur l’obstacle au lieu de foncer dedans.



François Chevalier



Fiches techniques :

WallyCento
Architecte : Francois Chevalier YD
Chantier : Multiplast (Vannes), Cookson Boats (NZ) ou Green Marine (Hyth, UK) de préférence
Construction : Carbone composite
Conforme à la jauge WallyCento
Longueur : 30,48 m - 100’
Flottaison : 26,70 m
Bau : 7,20 m
Tirant d’eau : 6,20/4,50 m
Déplacement : 45 t
Quille rétractable
Tirant d’air : 45 m
Voilure, GV + foc solent : 592 m2
Voilure, GV + genaker : 1000 m2

MaxiScow
Architecte : Francois Chevalier YD
Chantier : Multiplast (Vannes), Cookson Boats (NZ) ou Green Marine (Hythe, UK) de préférence
Construction : Carbone composite
Longueur : 30,48 m - 100’
Flottaison : 26,70 m
Bau : 7,20 m
Tirant d’eau : 5,60 m
Déplacement : 38 t
Quille pendulaire
Tirant d’air : 46 m
Voilure, GV + foc solent : 628 m2
Voilure, GV + genaker : 1110 m2













mercredi 1 août 2012

AMERICA'S CUP - UPDATE ETNZ’s AC72 PLANS - COMPARISON BETWEEN ETNZ AC72 WINGSAIL AND ARTEMIS WINGSAIL – MISES À JOUR DES PLANS DE L'AC72 ETNZ – COMPARAISON DE L'AILE D'ETNZ ET D'ARTEMIS – 2nd VERSION ETNZ’s AC72 DRAWINGS – AUGUST 2012



ETNZ’s AC72 UPDATE DRAWINGS – 2nd VERSION

MISE À JOUR DES PLANS DE L'AC72 D'ETNZ - 2ème VERSION




As everybody may imagine, it is possible as time elapsed, to watch more and more interesting photos of the big cat. This allows us to focus our observation on different elements of the boat.

We will update regularly the drawings in accordance of our wish to ensure our data is accurate and up-to-date.

Comme on peut l’imaginer, le temps passant, il est possible d’observer et d’analyser de plus en plus d’images intéressantes du grand catamaran. Cela nous permet d’améliorer le dessin de plusieurs éléments du bateau.

Dans cette logique, une mise à jour régulière de ces plans sera réalisée conformément à notre souci de presenter des informations et des données à jour.

François Chevalier & Jacques Taglang

The central beam is slightly placed forward and the hull is a little bit more hollow 

La poutre centrale est légèrement avancée et la coque est un peu plus creuse
The first version had been fitted with photos extremely distorted and in spite of several tens of hours trying to get everything right some setting error would remain 
La première version était montée avec des photos extrêmement déformées
et malgré des dizaines d'heures passées à essayer de redresser le tout, il restait quelques erreurs de calage