Erwankerauzen

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About Erwankerauzen

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  1. Erwankerauzen

    Emirates Team New Zealand.

    My English is far from perfect, I wrote bow down is better for max speed... While I should have written: bow down is the consequence of sailing @max speed for a set of foils that must also perform their duties during slower phases. Just physics
  2. Erwankerauzen

    Emirates Team New Zealand.

    Apologize to Phil NZ too, For the same above-mentionned reasons. Cheers Mate Erwan
  3. Erwankerauzen

    Emirates Team New Zealand.

    Apologize Skipstone, So much msg to read , I read yours to quickly and superficially, and repeated the velocity/distances sailed issue, uselessly. Cheers Mate Erwan
  4. Erwankerauzen

    Emirates Team New Zealand.

    Sorry Tornado-Cat, I would not share your point of view: You cannot throw allegations without any evidences or at least a bit of reasonning. Just like me, you had access to races datas, after the races, and just like me you have noticed, that ETNZ won consistently Just like me, digging into the datas, each time ORACLE velocity was superior to ETNZ velocity, you had the information about the distances in (meters or feet) both boats have been sailing during the race. And each time Oracle showed a little extra velocity, she used to sail significant longer distances, it just means that Oracle bear away 1 or 2 extra degrees windward and was pointing 1 or 2 extra degrees downwind. So it was not an apple & apple comparison. To have a relevant speed test, you need to work hard to prepare the procedure to be sure that nothing will pollute the outcomes. "Rigging" a relevant test is a job in itself, it is not like dropping your opinion. At the end the KIWI wons, that' s all that matters. According to the following old Wild West adage: When you want to hang somebody, call him a horse thief. It is exactly what you are doing, seeding rumors about illegal computer aid for ETNZ. -Now when it comes to the subject of bows down. Uflux has sum up the point: It is about physics. I would suggest you to find 2 different videos, one in light wind, and another one in stronger wind, you should observe the bow is not as down in light than in stronger wind, but probably a very little difference because: With these "apparent wind machines", velocity on foils is pretty the same, whatever is the true wind speed, as long as you have enought wind to take off, so once on the foil at max speed, no much difference in bow down attitude. Bow up or not as down as expected, should be observed at the start of the foiling phase, before the boat achieves her max speed. But if you pull your fingers out of your ... then try to understand the CLASSIC issue of Induced drag / Friction drag, you should be able to understand why bow down is better for max speed, with foils that must also perform their duties before foiling speed is achieved. At the end of the day, the Cup is in KIWILAND with a smart Aussie leading a pack of talentuous mates, who are not mercenaries, and abid to strict fair-play practices. They just don't need to cheat, it is not their minset.
  5. Erwankerauzen

    Emirates Team New Zealand.

    The rules only say that the change for the rudder is limited et 3°, then the crew find the best trade-off between windward and downwind optimum for the rudder foil, from 25knt upwind to 40 knts downwind the difference in lift 2.5 higher, everything else equal
  6. Erwankerauzen

    Emirates Team New Zealand.

    If bow down attitude was simply the consequence of a migration for the Centers of Pressure, for both the rig and the foils with increasing velocity ?
  7. Erwankerauzen

    SailGP 2020

    Smack, Just being serious for one time, I would like to share with you my analysis of your SailGP project Honestly, I think SailGP business model is perfect for a global sponsor, with global market, looking for global audience.. a sponsor like...... ORACLE for instance. In Australia, but Quantas, many big company could afford 7 m$, but they would prefer a local audience, just like a French fresh vegetables company who is paying for the boat: Prince de Bretagne You never heard about them, but they invest probably more than 7m$. So you would better spend your time improving this obviously flawed business model. Another solution could be to convince Larry that if he wants to become the Medicis of High Performance Sailing, it would require more sacrifice than just a few millions seed-capital. Good Luck
  8. Erwankerauzen

    SailGP 2020

    You never read it, just look at the publication date and make a good job with photoshop I am not able to do, congrats
  9. Erwankerauzen

    SailGP 2020

    Smack If you have a bad "karma" , maybe it is not your fault. It took me years to get this book I heard about it in 96 during an A-Cat world, and I finally got it from BibliOZ around 2004. Great people behind this website, and I am happy to have this opportunity to advertize their business on this forum, guessing Mr CLEAN would not complain for this free ad. I think you should get it, not only you will understand why Aussie and Kiwis are so cool and so talentuous at the same time, and it will be helpful improving your "karma" The chapter about "Attitude" looks like if it has been written especially for you. A Must Read Cheers Your beloved Wanker
  10. Erwankerauzen

    SailGP 2020

  11. Erwankerauzen

    SailGP 2020

    Smack, Just have a look at the front page of your prefered website you use to advertize your business. I think you forgot a golden rule The 3 fundemental laws of Mother Nature also apply to business world 1-Symbiosis 2-Commensality 3-Parasitism While I am ready to give your boss some credit for both the great media coverage I discovered in 2013, and for these fabulous cat AC 72 and AC 50. (While these boat were born with Larry, these have been grown up with some Kiwi & Aussie talents.) I am afraid that among the 3 above mentionned options, you have choosen the 3rd one. Only the Future will tell to which extend it has been insulted. I would think, time is ripe for you to stop throwing shit, and suss out a symbiotic solution for the future of your business. One can observe: Ashby rules the A-Cat, Slingsy rules the Moth, Aussies & Kiwis rules the waves. and Smack rules the "sh.." fan. Hard work ahead for you good luck. Post Scriptum: Your picture above, is not a red-neck trick, it is a cost-effective solution. "Continues comme ça mon grand, pour moi, tu es un bon client" Wanker
  12. Erwankerauzen

    SailGP 2020

    You intellectual dishonnesty is crystal clear, you mention """if the AC continues ... just like if I addressed the topic and you are answering .... a red-neck trick 7 millions, not accounting the hundreds spent by AC teams for the 2017 Cup in order to achieve the boats you are using at sailgp now.
  13. Erwankerauzen

    SailGP 2020

    Smack, By throwing shit all the time on AC, you are just insulting the future, The problem, that it is not your future It is the future of the crews sailing the 50, you are insulting. Your strategy is clear, if all these talents were involved in AC campaign, you will organize SailGP with 420 or laser. So it is not surprising to see you, digging a gap, as wide as possible, between sailgp and AC. A crappy strategy to secure your talents, not really a long term alignment of interests. Just looking forward, if the funding is not there, these guy will have to look for another sailing opportunity, while you will have cornerized them. Beware of the coming mutiny. Be careful too, Amed's boat or Flipper, has removed its front carbon pole in order to kebab your rectum asap.
  14. Erwankerauzen

    The new sailing twin skin setup

    Greg Johnston is available, Just listen to the first 50mm, Quite easy to understand as Greg speaks clearly enought for a non-English native. I think I could understand around 60%, really a great podcast for wing geekS, Thanks again DJ4374 Interesting remark regarding the performance windward of a jib+soft wingsail combination AFAIU, the jib provides better / higher lift due to less parasitic/separation?? on the mast behind, and more interesting: With a flat jib and larger slot, they sail faster & higher.(To be checked) Also, as expected, he mentionned that as soon as on the foil, it is only about drag, much enought apparent wind for the lift required. 2 skins + D mast or similar arrangement, almost mandatory to sail high if you don't want the luff to invert behind the mast The issue is you need power to accelerate and get up on the foil, before to reduce the power It is very easy with 2 elements hard wingsail on a cat. Flattening the sail on foiler Moth is mentionned as an illustration of the issue (I feel confident some Mothie sailors will drop a few words about it). A monohull has not the initial righting moment of a cat, especially with this foiling system. So each time you go down from the foil and slow down, you will loose more ground than with the AC50 cat. My "condoleances" to all Aussies, and feel confident that these guys who managed to take the Cup with Australia II, who brought to the sailing world the 18 skiff, the foiling Moth, among other great "inputs" .... I feel confident they will make Australia great again (But for Scott Morisson,... I have no evidence). Cheers Mates Erwan
  15. Erwankerauzen

    Building an A-class Catamaran

    Of course Max, It was just to illustrate that a bigger boat with bigger loads than an A-Cat can stand these load without being build in one piece. But of course, the quality (& price )of the carbon used for the C-Cat is probably very different from those used for A-Cat. Interesting remark regarding the mast acting like a dolphin striker, not impossible, and it could make sense if you consider it as a kind of "pre-bending" the plateform. It is just an assumption to feed the ongoing debate, A-Cat specialists are obviously in better position than me to provide the relevant explanations. Cheers