Sodebo Ultim 3 Foiling Trimaran

Discussion in 'Multihulls' started by Doug Lord, Jan 1, 2019.

  1. Doug Lord
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    Doug Lord Flight Ready

    Actualités - Sodebo Ultim' 3 | Sodebo https://www.sodebo.com/actus/voile/sodebo-ultim-3/
    ----------------------
    If the renders on the website are accurate this boat is not using a lifting foil on the daggerboard or an uptip foil on each ama. In fact the foils ,as drawn, appear very much dated. However, the renders on Gitana were not accurate until almost the launch. So I bet the foil shapes will change and I believe they'll use a daggerboard lifting foil as well as uptip ama foils-we'll see.

    Picture by Fred Morin, Team Sodebo:
    Sodebo-newest #3.jpeg
     
    Last edited: Jan 1, 2019
  2. Doug Lord
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    Sodebo in French:
     
  3. Doug Lord
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    Heads Up!!! from Tip & Shaft Newsletter today:. Thomas Coville’s new Ultim trimaran, Sodebo, will come out of the Multiplast yard in Vannes on Saturday at 11:30 am.



    Vid starts at 15:50 in--boat at 37 min in..
    -- large uptip ama foils in, no sign of daggerboard foil
    --renders at end of vid show no main foil, but neither did Gitana renders.. Sodebo may be going with no main foil?
    -- cockpit in front of the mast
    =======================================
    This quote may indicate that Sodebo will use a mainfoil:
    From the latest Yacht Racing Forum:
    Renaud Bañuls, Bañulsdesign, designing a new foiling Sodebo for Thomas Coville, and a number of foiling craft for weekend sailors: “After achieving foiling, the next big step is creating dynamic righting moment.”
    Unless they settle for differential rudder flaps to develop extra RM(lee+center rudder T-foil) using "up flap"(downforce) from the mainfoil is the only way to develop dynamic righting moment. Will be interesting to see........
     
    Last edited: Mar 2, 2019
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  4. Dolfiman
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    Really impressive design and building, and the unveiling from the hangar is worthy of the one of a new Airbus or Boeing !
     
  5. Doug Lord
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    Doug Lord Flight Ready

    =========
    Have you heard anything on their foils?

    More foil info and speculation:
    High Performance MPX Foil/Self-righting Trimaran-The Test Model https://www.boatdesign.net/threads/high-performance-mpx-foil-self-righting-trimaran-the-test-model.36058/page-192 posts 2876 and 2877 (bottom of last page)
    ========================================
    From sa and:
    Ultime. Cockpit devant le mât : Coville l’audacieux ! [Vidéo] https://www.letelegramme.fr/voile/ultime-coville-l-audacieux-video-02-03-2019-12221112.php

    Sodebo:

    18 months of construction

    50,000 hours of study

    110,000 hours of construction

    - 32 m long by 23 m wide and 34 m high mast, the surface of 4 tennis courts ...

    - 65 tons of compression in the mast foot ball

    - 17 tons of tension in the mainsheet

    - Nearly 700 m² of downwind

    - Max speed envisaged: between 45 and 50 knots

    - More than 400 suppliers

    - Air draft: 36 m

    - More than 16,000 m² of carbon

    - KM of tips: 2.5 km

    - Surface nets: 270 m²

    - Optical fiber footage: 330 m

    - KM of electric cables: 4 km

    - Foils: 2.5 m under shell; total height foils: 4 m

    - Painting area: 750 m²

    - Surfaces of the sails:

    GV: 277 m²

    Day: 420 m²

    D1: 261 m²

    D2: 170 m²

    D3: 92 m²
     
    Last edited: Mar 2, 2019
  6. Doug Lord
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  7. Dolfiman
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    Dolfiman Senior Member

    Some key points : an engineer coming from the car industry joined the design team to work intensively on a new vision of the masses centering and the spectacular result is this pilot cabin in front of the mast, On the other hand, they decided to be conservative at first with relying only on foil assistance (although full flying option seems still open later on).
    Excerpt : "The concept of piloting, we find in this cockpit integrated in the front arm that will give a completely different view of the way of sailing. Since the departure, the boat is very conservative. We did not want to make it a flying boat. It will progress as and when."
     
  8. Doug Lord
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    Doug Lord Flight Ready

  9. Doug Lord
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    Doug Lord Flight Ready

    From Pressure Drop: Pressure Drop - Coville's New Tri Emerges http://www.pressure-drop.us/forums/content.php?9015-Coville-s-New-Tri-Emerges

    To draw this boat, Renaud Bañuls has also been working with Vincent Lauriot-Prevost, GSEA Design, Hervé Devaux and Martin Fischer. " To imagine a boat like this one, We Did not want it in the hands of one Knowing goal the result of joined work Where everyone can express Themselves. Who says new boat, Said new methods and why not a design team with people I Had coasted to Their expertise. By setting up this Design team, I Knew He Was going to-have me explain to Several People That I Had the taste in the mouth, music, the picture I Had in mind. The transcription of the act is quite disproportionation . There aren't Many acts That measure 32m long and 23 m wide and 34 high! "
     
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    Corley epoxy coated

  11. Doug Lord
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    Doug Lord Flight Ready

  12. Doug Lord
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    Doug Lord Flight Ready

    From Voiles et Voiliers
    https://voilesetvoiliers.ouest-france.fr
    thanks to qbf on sa for the machine translation:
    https://voilesetvoiliers.ouest-fran...ifferent-0cf35612-3dd3-11e9-81df-04eb0a99a092

    Sodebo Ultim. One of the architects explains the risk of being fundamentally different
    MACHINE TRANSLATION

    In the high-flying design team assembled by Thomas Coville, Renaud was one of the very first to work on the project. At the request of the skipper, the architect looked at the beginning of 2015, and for a year and a half, on this very innovative project. He explains the choices we've chosen.

    Sails and Sailboats: What was the idea that guided your work, did other boats inspire you?

    Renaud Bailey: The idea of Thomas (Cotown) was to start from a white sheet and try to be as creative as possible. We were not trying to innovate to innovate but we said: What would we do if we wanted to do something really good even if we had to be fundamentally different? And the basis of the reflection is to seek to have the most efficient sail plan possible and then draw the platform to keep this sail plan super efficient. That's what led us to draw this platform a little bit different.

    Sails and Sailboats: What was the idea that guided your work, did other boats inspire you?

    Renaud Bailey: The idea of Thomas (Cotown) was to start from a white sheet and try to be as creative as possible. We were not trying to innovate to innovate but we said: What would we do if we wanted to do something really good even if we had to be fundamentally different? And the basis of the reflection is to seek to have the most efficient sail plan possible and then draw the platform to keep this sail plan super efficient. That's what led us to draw this platform a little bit different.
    [Renaud Banuls, ici sous la coque centrale du nouveau Sodebo Ultim 3, le jour de la présentation du bateau.]
    Renaud Bailey, here under the central hull of the new Sodebo Ultim 3, on the day of the presentation of the boat. | LOÏC MADELINE/sails and sailboats

    Sails and sailboats: so this cockpit in front of the mast is first to have a more efficient mainsail?

    Renaud Bailey: Yes it allows to have a mainsail that comes to the bridge. We tried to increase the efficiency of the mainsail and all the sails but also to decrease the drag of the platform drastically.

    Sails and sailboats: This can amount to a percentage, this drag gain?

    Renaud Bailey: Yes, we're pretty happy, we expect 3% gain which is huge for a platform but we must not forget that there are other factors that are fundamental, where you gain a few points on a platform, with a new generation of foils there are a Llures or you will earn 20 to 25% efficiency! The performance will go to the sailor's ability to lead the boat to 100% of its potential.
    [Le cockpit très protégé est solidaire de la poutre avant, une architecture radicale qui place le barreur en avant du mât.]
    The highly protected cockpit is in solidarity with the front beam, a radical architecture that places the helmsman in front of the mast. | LOÏC MADELINE

    Sails and Sailboats: will these foils be enslaved?

    Renaud Bailey: Today the Ultim class is without servo and the foils have been designed and drawn to operate without any control. If the class changes and the regulations change, we'll be ready.

    It was already necessary to put in the chassis the maximum performance

    How to define Sodebo compared to other existing boats?

    Renaud Bailey: The difference is in the chassis. We work on the same objectives, Appendices, Vol... There we thought that if we left a blank page, we had to put the maximum performance in the chassis. We're talking about passive speed and active speed. Passive speed is all that will give performance to the boat without asking for action from the sailor. Active speed is what will ask for action to the sailor. The foils for example, it requires the action of the sailor, because they must be mounted, because they have to be adjusted and it takes enormous efforts in view of the size of the foils. We worked on the active speed but we tried to go much further on the passive speed, not only to lower the winches a few centimeters to gain in center of gravity.
     
  13. Doug Lord
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    Doug Lord Flight Ready

  14. Doug Lord
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    Doug Lord Flight Ready

     

  15. Doug Lord
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    Doug Lord Flight Ready

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