I januari så dök skisserna på Ker 11.5 upp. Nu är första båten, Peacemaker, i sjön. Ser ut att landa på 1.162 i IRC (motvarar ~1.45 i LYS) vilket är högt, men Ker har ju haft bra koll hittills… Vi får se när den dyker upp på American Yacht Club Fall Series till helgen (förresten, inte dåligt att få ihop 11 J/122 i en klass). Foton: Team Peacemaker.
OK… I was prompted to check out this site this morning and now I see why! I fully agree that the 11.3 is a good 2nd hand buy that suits many people’s requirements, it’s fun to sail and rewards good crews, there is still a strong demand for them as evidenced by the many E-mails we recieve for poeple trying to buy one. With 11.3’s winning their classes in South China Sea and Rolex Sydney Hobart races, that market has recently got even stronger. Well sailed 11.3’s have won plenty of inshore IRC regatta’s through the years and a very well sailed 11.3 was the top boat inshore in the 2002 Rolex Commodores Cup, also raced under IRC. The moulds for the 11.3 still exist so it may be possible to obtain a new one!
On the other hand we are now in 2009, the competition doesn’t stand still and there are also some who wish to have a good chance to win both inshore and offshore against recent generations of IRC yachts. Strangely enough it wasn’t too hard for us to make a serious improvment in performance in comparison to a design from eight years ago.
Rating – If they had the same sailplan the rating is approximately the same between the 11.5 and the 11.3, however we plan for the 11.5 to have a 150m2 bowsprit kite, so a slighly higher rating will be normal. It is often forgotten by many that handicap racing is not about the handicap, it is about the relationship between the handicap and the actual performance…
Sailplan – The 11.5 has the stability required to benefit from bowsprit-on-centerline, however it certainly also can be equiped to carry symetric and assymetric on a pole. The first boat is to be launched with the owner’s 11.3 sails, including spinnakers on spi pole. The final one-design sailplan hasn’t been decided on but certainly IRC friendliness will be an important consideration and the not-for-release-yet sailplan pasted at the top of the thread is certainly at the more extreme end of the spectrum.
Hull Form – The 11.5 is a race-boat, we are not trying to squeeze it down into a class of similar sized cruiser-racers so a reduced rated length is not important (IRC rates length pretty fairly). The transom is wider because the waterline beam is wider than the 11.3, so the transom needs to be wider to match. The condiderably more advanced hull design has lower wave drag, which at least balances an increase in friction drag without reducing light airs performance.
Rudder position – The rudder is in an identical position to most of the current TP52’s and other box-rule boats, and a lot further back than most cruiser racers designed for low IRC ratings with high transoms. This position allows excellent control downwind while keeping it far enough forward to be normally under water (and therefore efficient) upwind. The rudder section design is also very much more advanced than those we were using eight years ago…
Performance – We run a virtual “Fleet” of designs in the computer including most of our own along with various others, which we have calculated the performance of using advanced and verified CFD and VPP methods. The 11.5 is one of the top performers in this fleet, as is our new 46′ racer which is currently being built at Salthouse in NZ. As several of our boats ranking at a similar level or below it in the fleet are state-of-the-art winners, so we can confidently recommend the performance of the new design.
Summary – For many the right choice will be a 2nd hand 11.3, but that will not be enough for others. It depends on their competion, their budget and their aspirations.