Philippe Briand-designed ‘Vertigo’ on schedule...

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Philippe Briand-designed ‘Vertigo’ on schedule...

Industry News

Under construction at Alloy Yachts’, she will be the largest yacht to ever launch in New Zealand come December. She will take the title from the same yard's third Kokomo, which launched just 12 months earlier.


Auckland, New Zealand-based Alloy Yachts is on schedule with its project ‘AY41’, SY Vertigo. She should go into the water in December ‘10 after a 27-month build programme and an eventual handover in early ‘11.
This Philippe Briand-drawn ketch has an LOA of 67.2m (220ft) and pushes the yard’s capacity to the absolute maximum. Indeed by quite a margin she is the biggest yacht to ever launch in New Zealand; the previous largest was the same yard’s just delivered 58.4m (191ft) new Kokomo.
SY Vertigo will be the first sailing yacht of her size to have an almost vertical stem. This feature allows for a greater waterline length, thus making for a considerable improvement in speed both under sail and engine power. With an air clearance restricted to 68m (223ft) for access to the Suez Canal) and a draft restriction of 5m (ft), the designer was particularly concerned with enhancing efficiency of the sail plan and keel. A ketch rig and daggerboard keel extension delivering a maximum draught of 9.1m (29ft 9in) were the only suitable options.
Note the mainsail and mizzen roaches, the like of which have never been seen aboard yachts of this size. They mean more surface area up where the wind is strongest, but require running rather than permanent backstays.
The spars and EC6 rigging are all from Auckland-based Southern Spars.
Under sail she is expected to reach at speeds of almost 20 knots with a true wind speed of 20 knots. And in lighter airs, say less than 10 knots of breeze, she should outperform all existing super-sailers; or at least that’s the claim!
Under engine Vertigo should manage a maximum speed of around 17 knots; at a constant 12 knots the range is estimated at over 4,000nm.
Probably the biggest ‘wow’ aboard will be the integration of deck saloon and cockpit, which combine to deliver a seamless living space some 30m (98ft) long. The uber-cool Christian Liaigre has been responsible for her interior; the owner’s brief to him requested an ‘urban at sea’ feel; the basic ingredients are walnut and ‘clawed oak’ veneers, Oberflex decking, and anodized aluminium and stainless steel detailing.
The lower deck provides a huge owner’s cabin aft that includes a his-her ensuite bathroom almost as big as the bedroom; that has direct access to the lazarette and bathing platform, and four guest cabins amidships, three doubles and a twin-bed plus pullmans.
Unusually there's a massive storage space for tenders and equipment in the centre of the boat; it occupies the space around the main mast step. Hull doors provide the access and tender docking.
Then up forward there’s enough accommodation for 11 crew and the galley and crew mess.
On deck the lack of clutter will surprise for a yacht of this size, as will the swimming pool beneath the sun pads at the rear of the cockpit.
The project manager is Australian Andrew Senn.

Basic Spec – SY Vertigo...
Type: Super-Ketch
LOA: 67.2m (220ft)
LWL: 61m (200ft)
Max Beam: 12.53m (41ft 1in)
Draught (Centreboard Up-Down): 5.05-9.10m (16ft 7in-29ft 10in)
Sail Area
‒ Upwind Max 2,290m² (24,636ft²)
‒ Downwind Max 3,330m² (35,825ft²)
‒ Mainsail 740m² (7,961ft²)
‒ Mizzen 610m² (6,562ft²)
‒ Mizzen Staysail 480m² (5,164ft²)
‒ Light Genoa 940m² (10,112ft²)
‒ Blade Jib 660m² (7,100ft²)
‒ Free-Luff Staysail 320m² (3,443ft²)
‒ Gennaker 1,500m² (16,138ft²)
Main Engines: 2 x 1,400hp (1,043kW) Cats
Fuel: 64,000L (16,913 US gals)
Water: 13,900L (3,673 US gals)
Guests: 12
Crew: 11
Exterior Design/Naval Architecture: Philippe Briand
Interior Design: Christian Liaigre
Construction: Aluminium
Builder: Alloy Yachts
Launch/Delivery: Late 2010/Early 2011

Check out the New-Build Report: New Zealand feature in Yachtbuilder Magazine Issue No3 – just go to and click the ‘Latest Issue’ front cover on the right-hand side.

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© Phil Draper