Originally Posted by PCP
and they go in the right direction: less costs and more reliability.
The hulls will be free (inside the existent rules) but the keels and masts will be standardized.
Two kinds of masts will be allowed: fixed with masts spreaders and rotating wing masts, type "tuna" with their big outriggers.
In what regards the keels they will be more reliable since they will be all carved from a steel block. More expensive and unreliable carbon fiber or welded structures will not be allowed (of course, the bulb will be lead).
There was talk about the canting keel system to be also standard but it seems that did not went ahead also has the old idea to have the boats using only renewable energies.
and some figures related with $$$$$$$ and the IMOCA class:
816 TV hours and over 400 million euros media value for the past 4 years
and that's why it is a great class with beautiful fast boats and a big evolution in what regards design: the average life of a winning boat is of about 4 or 5 years. No money, no new boats, no high tech, no development.
Some very interesting additional information and some corrections:
It seems that after all the canting mechanism will be standard. I read an interesting interview with Vincent Lauriot-Prévost that explains the consequences of these modifications namely about the importance of the elimination of the limitations regarding the heel at 10º.
Without the elimination of that limitation the old boats would be faster than the new ones. The canting system will be more reliable but also heavier as well as the keel foils, now in solid steel, while the faster boats had it made in Carbone or in a kind of void steel structure.
The standardization of masts will also imply a stronger mast but also an heavier one.
All that would give an heavier boat and the small hull improvements risked not to be enough to compensate that. They would have a problem in what regards making faster new boats.
To compensate that they eliminated an old rule (from 1996) that demanded that a boat in its worst configuration, meaning ballast full and the keel on the wrong size, should not have an angle of heel superior to 10º
VLP says that rule does not make sense anymore because it created prejudicial results: For respecting that angle the solution passed for creating water ballast that had no influence on that angle (more nearer the center of the boat). He says that the water ballast needed to achieve that arrived to 4000 liters on a boat that weighted about 7000kgs.
without that limitation it is possible to have boats that need a lot less water ballast, boats that will be lighter while sailing. VLP says that the design of the new boats will pose new challenges. Now they can put the ballast on the more effective position and use less ballast for the same effect. The boats will have a max RM of 25,5 t/m at 25° of Wheel. To manage that there are a lot of options now and the boat design is a lot more open. The bulb will have a max weight of 3 100 kg but it is possible to have less and compensate with water ballasts.
The max beam is a bit reduced (5.85m) and the angle of the canting keel is the same for all: 38º
Juan Kouyoumdjian and VPLP-Verdier have made about the same recomendation to make the new boats faster (the ones that where adopted) while Farr purposed to take measures to make the existent boats slower.
We will see if they manage to make faster boats than the ones from the next generation and it will not be easy since the bulb max weight was bigger (3 500kg) and the max RM at 25º was bigger too (26,5 t/m).
With heavier masts and heavier keel foils and heavier canting keel mechanisms it will be a true challenge to make faster boats.
The only advantage of the new boats will be a more effective position of water ballasts (needing less water) and improvements in what regards hull design and boat balance.
Very interesting stuff and again very interesting developments ahead in what regards boat design: the new boats will be probably much more different between them since there are more options to achieve the same result in what regards Max RM allowed
Jauge IMOCA-Vincent Lauriot-Prévost : « On a supprimé un facteur pervers : le test de gîte à 10°? » - Annonce bateaux - Annonces bateaux - Occasion Bateaux - Occasion Voiliers - Occasion voiles