Please select your home edition
Edition
upffront 728x90

America's Cup- AC45 ticks all the boxes on just her second day out

by Richard Gladwell on 19 Jan 2011
AC45 on the Hauraki Gulf on Day 2 of sea trialling © Richard Gladwell www.richardgladwell.com

Sail-World was very privileged to get a look at the new AC45 sailing on the Waitemata Harbour and Hauraki Gulf, in conditions that were testing - a 20kts SW breeze, gusting to 26kts.

It was very hard, or impossible to find fault with the AC45, which turned in a remarkable performance by any standard and particularly for a multihull.

She exhibited excellent speed up and downwind - hitting 13-16kts upwind and 27-30kts downwind.

The sailing angles were very good - comparable with a keelboat, maybe not up at the angles of an AC Version 5 - noted for their closewindedness.


Handling was an absolute dream - even some quite radical maneuvers such a several 'S' bend bearaways at speed from an on the wind course, there was no tendency to bury a bow, and she stayed almost level throughout.

Tacking was unbelievable - far quicker than a monohull - even an AC class yacht - and more akin to a very well sailed foiling moth - which does not put her hull in the water during a tack. The AC45 put both hulls in the water for maybe a second as she went through the eye of the wind, and then she was back flying a hull again on the new tack.

Gybing was slightly less radical, but still well above the standard of a monohull - giving the impression that matchracing will be very possible in these boats - if the AC72 scales up from the AC45.


(The video's below are not high quality - being shot from an iPhone4 in a chase boat doing around 30 kts downwind and 16kts upwind - so there is a bit of camera shake. The first is of a two minute speed burst in which the AC45 was moving at 25-30kts. The points to note are the stability of flight, the leeward bow not diving - especially cutting through a powerboat wake at 25kts plus, and the speed of the boats following. In the second, sailing upwind the stability of flight is probably the key point.)





Leaving the dock was a little tricky in the conditions, and you couldn't have got a more difficult place in the wind conditions. A bearaway off the dock, two gybes and she was out in the harbour - all alone and without assistance. Returning was easy with a chase boat strapped alongside.

The dropping in and out of the water was not much of a problem due to a clever system used to lift the boats, the main trick being to keep the boat head to wind while the rudders were fitted and then squeezing out of the confines of the marina berth.

We'll have a full review, more pictures, comments from Murray Jones and video later tonight. (Excuse the quality of the video - shot from a chase boat using an iPhone4 at 30kts - however if you look closely you will see that the AC45 has few vices, including cutting through a powerboat wake at close to 30kts).





[Sorry, this content could not be displayed]

North Technology - Southern SparsWildwind 2016 660x82Newport Boat Show 2016 660x82

Related Articles

Gladwell's Line - Does the America's Cup really need a Star Chamber?
The first meeting of the three-man America's Cup Arbitration Panel is believed to have taken place in London The first meeting of the three-man America's Cup Arbitration Panel is believed to have taken place in London in the past week or so. Officially the date hasn't been publicly announced. The venue hasn't been publicly named, and the parties have appeared before a Panel that is publicly nameless.
Posted on 23 Jul
America's Cup - Glenn Ashby on Emirates Team NZ's road to Bermuda
Part 2 of the interview with Emirates Team NZ skipper Glenn Ashby. In this part of the interview we look at what is going to happen once Emirates Team NZ get their 'AC49.5' sailing in Auckland, and how the campaign may shape up before they leave for Bermuda. Ashby wouldn’t be drawn on whether Team New Zealand had started their AC50 build, with July being the usual start of what is usually a five-month build and commissioning period for an end of December launch.
Posted on 10 Jul
America's Cup - Glenn Ashby on Emirates Team NZ's new AC49.5
Sail-World talks with Emirates Team NZ skipper, Glenn Ashby on what is different about the team's new test boat Just under 11 months out from the 35th America’s Cup, Team New Zealand does not seem to be in its customary place at the front of the starting grid to be the first to launch their Challenger, or are they? Although they will be one of the last of the six teams to launch an AC45 Surrogate, Emirates Team New Zealand may have stolen a march with a boat that is as close as you can get to an AC50.
Posted on 9 Jul
Gladwell's Line - Emirates Team NZ launches shadow AC50
Emirates Team NZ took a late but significant step along the road to the 35th America's Cup, with the launch of their AC4 Emirates Team NZ took a late but significant step along the road to the 35th America's Cup, with the launch of their AC45S - as the test boats are called in the Protocol which governs the 2017 event. The bloated Protocol, which now runs to 83 pages of legalese, is restrictive on the size of boat that can be built as a test platform but doesn't restrict the number that can be built.
Posted on 22 Jun
Platino recovery - Family confirms that tug has made rendezvous
Reports in social media say a salvage tug has made a rendezvous with the Platino earlier than expected. Reports in social media by family and friends of Nick Saull, the crew member killed during a catastrophic incident abroad the 66ft yacht Platino say the salvage tug which left on Tuesday night has made the rendezvous earlier than expected. The Facebook report says the tug, Sea Pelican, arrived on Friday morning, the weather in the area has eased and with a more favorable outlook.
Posted on 16 Jun
Rio 2016 - Double Olympic medallist on the delights of Guanabara Bay
Olympic Gold and Bronze medallist Bruce Kendall updates on the 2016 Olympic venue at Guanabara Bay. Olympic Gold and Bronze medallist, and now a windsurfer coach, Bruce Kendall has made several trips to the 2016 Olympic venue at Guanabara Bay. He updates on the pollution issue which is clearly not going to be resolved in a couple of months, and also shares his views on the venue from a sailing competition perspective.
Posted on 14 Jun
America's Cup - Artemis win Chicago as Team Japan wins two races
Louis Vuitton America's Cup World Series got three races away on Super Sunday. After losing the first official day of racing due to light winds and the non-arrival of the onshore breeze, Louis Vuitton America's Cup World Series got three races away on Super Sunday. From a racing perspective this was probably the best day of racing yet in the series which counts for points in the Qualifying Series of the America's Cup in 11 months time.
Posted on 12 Jun
America's Cup - Emirates TNZ NZ and Oracle capsize in Chicago Practice
Emirates Team New Zealand and Oracle Team USA capsized in Practice Racing at the Louis Vuitton ACWS Chicago There was action aplenty on Practice Day at Louis Vuitton America's Cup World Series Chicago, after Emirates Team New Zealand capsized in their match with Oracle Team USA, and then Oracle Team USA capsized later in the day. Team NZ's skipper skipper Glenn Ashby performed some impressive acrobatics ejecting from the AC45 capsize, without injury.
Posted on 11 Jun
America's Cup - Changes proposed to control future Cup options
Changes are being mooted to put the America's Cup on a longer-term footing according to the Daily Telegraph (UK) News that changes are being mooted to put the America's Cup on a longer-term footing is being floated in the Daily Telegraph (UK) by the British Challenger, Land Rover BAR. According to the Telegraph, some of the teams in the 2017 America's Cup are keen to lock-in parameters which would bind successive holders of the a style and frequency for the next America's Cup Match.
Posted on 8 Jun
America's Cup - AC50 construction uncovered - Part 2 - Wings and Costs
Second part of a two-part series looking at the AC50 construction progress at Core Builders Composites Second part of a two-part series looking at the construction progress at Core Builders Composites, and features of the AC50 class which will be used in the 35th America's Cup in Bermuda. Tim Smyth takes us on a tour of the CBC facility in Warkworth, and hour's drive north of Auckland. Where several AC50's, components and wingsails are under construction or have already been shipped to the teams.
Posted on 5 Jun