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Tipping point? The first two Class40s in the Route du Rhum were both new designs, even more powerful than the grunty previous generation and with much greater influence from the scow design school that now dominates the Mini 6.50 class. A ‘full’ scow is not achievable under Class40 rules but designers are instead pushing waterline beam out hard forwards, adding as much buoyancy as possible. Class40 winner in the Rhum was the 2018 Lombard design Veedol of Yvonne Richomme with Aymeric Chappellier’s (above) 2017 Manuard Mach40.3 Aina second. Is the Class40 now going to be dominated by these scow-influenced designs? Probably, yes


work in the America’s Cup and Vendée Globe, brings a mastery of computational fluid dynamics and finite element analysis to this project, just as he has in the past with other high-performance boats including many open monohulls and multihulls. Even at first glance the new Sun Fast is remarkable with a hull


that shows a double concavity along the rocker line, forward and aft of the keel. ‘These curved hollows on the centreline enable an improved distribution of dynamic pressure while limiting drag on the hull and minimising wetted surface below the waterline for greater performance,’ declared Guillaume. The straight ‘IRC keel’ has also been carefully refined for the minimum of drag (there is no bulb and the upper and lower chord lengths are identical) and optimised centre of gravity. Because the hull features maximised buoyancy aft, the rig has


been moved back to suit. The sailplan is large and powerful, but ‘race-quality’ deck systems should make it quite efficient and easy to handle. Trimming the big square-top main upwind is helped by the addition of twin backstays. Compared to the Sun Fast 3200, Andrieu said his new boat is


longer, lighter, brings more sail and is stiffer. Her overall length is 9.99m, her beam 3.40m, actually a bit less than the 3200 because the deck is narrower with a little tumblehome in the hull. The target was to minimise the surface area of the hull while still ensuring enough stability for the boat to be competitive with a full crew or a shorthanded/solo team. Of course there are two rudders (the standard for an IRC boat


of this type) but only one tiller for better ergonomics plus less weight and expense than a twin-tiller arrangement. On deck there are also a pair of JPK-style small forward-facing windows (which provide a surprising amount of extra light inside the cabin). The 3300 features a long fixed bowsprit for the big 128m2


asymmetrical spinnaker. The IRC rating should be around 1.015/1.020 and the first SF3300 n°0 will be delivered in early summer. The price will be about 110,000 euros ex-VAT etc.


Champion again Phil Sharp racing the Mach40 V2 Imerys Clean Energy finished the Route du Rhum with a remarkable third place behind only two of the latest more powerful designs, earning him the Class40 champion ship title for the second consecutive year. Securing a podium spot in each of the four championship races


he contested, Phil dominated an increasingly competitive series thanks to the arrival this year of many new boats and experienced new skippers. The talent of the British skipper is widely recognised, together with his temperament as a tenacious and resolute fighter which has earned him the friendly nickname of ‘Bulldog’! The Class40 finish in the Rhum was a nice reflection of the


fiercely contested 2018 season. Indeed, at least 15 of the solo entries, whether aboard latest-generation or fully optimised previous- generation 40ft monohulls were in contention for victory when the race started on 4 November. Phil reckons: ‘Winning the champion - ship for a second year has shown that above all we have been consistent, finishing every event over the last two years on the podium… and using a five-year-old boat. ‘But achieving this success has required a great deal of hard


work on and off the water from all the team, both technically and commercially… to pay the bills.’ Energy Challenge has now gone beyond race results and is meeting


its goals of demonstrating accessible new technologies to aid a wider transition to clean marine power. Imerys features a suite of the latest high-efficiency renewable energy systems, including new lightweight photovoltaic panels, the latest hydrogenerator plus the recent introduction of biodiesel which is produced with the help of Imerys filtration technologies. This new B100 biodiesel fuel is a direct renewable replacement for conventional fossil diesel. Imerys was the only boat in the Route du Rhum without any fossil fuel aboard. Phil Sharp is now putting all his efforts into the move up to the


Imoca. His Class40 objectives have been met, twice, which we hope makes a nice platform to take the big step…


SEAHORSE 21 w


CHRISTOPHE BRESCHI


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