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    Alinghi Challenge AC37

    Similar IQ too
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    Alinghi Challenge AC37

    I don't think it is either. It is a joke reference to red bull ads "red bull gives you wings" Don't read too much into it
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    Alinghi Challenge AC37

    Cant
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    Alinghi Challenge AC37

    Be fair, his experience is limiting to the boating pond, so he won't realise the difference that waves make
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    Alinghi Challenge AC37

    Thanks. Interesting. So yes, as long as you don't add, change or remove more than 15% you could change the shape quite a lot. Not just Trigger's broom, but Trigger's dustpan and brush that used to be a broom
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    Alinghi Challenge AC37

    I was questioning Mozzy's assertion that you could change the shape as much as you wanted if you used old cloth. The corrolary would presumably be you could repair a sail as much as you liked with new cloth if it didn't alter the form against the blueprint
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    Alinghi Challenge AC37

    Is that true? Mainsail skins have 85% of the area immutable And 4.23 says that such components are controlled against the blueprint of the original. So changes to shape (including I would have assumed all these changes to clear and tack) would count as changes irrespective if old cloth were used
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    Alinghi Challenge AC37

    That applies to modification of new sails, but if I understand 4.5 correctly, a legacy sail can't be modified to a different form at all
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    Alinghi Challenge AC37

    So even though that was a legacy sail, sailed on a legacy yacht, because they modified it, it counts as one their quota for the final boat. Yes?
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    Alinghi Challenge AC37

    I think it's good if the waves are going to be bigger. Comes back more towards "real" sailing where you have to deal with a variety of conditions.
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    Alinghi Challenge AC37

    Don't know about Alinghi but with Jim owning both I think they will put a lot of resources from F1 into AC. Colocation is more evidence of that. They wouldn't give up space at Brackley lightly
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    Alinghi Challenge AC37

    That's the intent -and to produce more RM to correct for the reduction in RM from reduction in weight. So much is clear, but the impact of that on other stuff is interesting
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    Alinghi Challenge AC37

    Maybe. Thing is that smaller foils tend to give you a higher pressure differential (to lift the same weight from a smaller area they have to) so they are liable to cavitate earlier. Did the others back off from such a design because they couldn't solve the cavitation problem? Did any team ever...
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    Alinghi Challenge AC37

    @Basiliscushave you looked at the new rule which seems be bound to produce even longer foils?
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    Alinghi Challenge AC37

    Because the bubbles need a surface for nucleation (in coarse terms seeding). That can come from impurities in the water or air bubbles, but a surface causes lots more. Hydrophobic surfaces reduce that effect
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    Alinghi Challenge AC37

    I'm an engineer, and I have a wide range of opinion on what other engineers are capable of too. Hydrodynamics specialism apart, the Merc guys gave a very good explanation of where they could help and it made a lot of sense. Fwiw I think the Ineos tie up will gain more because the shared...
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    Alinghi Challenge AC37

    His point was that F1 do know a lot about fluid dynamics because aero-dynamics is a a subset of fluid dynamics. But they won't have the expertise in hydro-dynamics (which in turn includes cavitation). I suspect it is well enough understood that with designers from AC36 they and their models can...
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    Alinghi Challenge AC37

    More than it has to do with the AC
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    Alinghi Challenge AC37

    Well he might need a new job soon
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    Alinghi Challenge AC37

    So the flaps consist of steel, some fairings and flaps made up of something else. A composite of things one might say ;) But I had missed that bit of the protocol. Thanks Shanghai
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