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Multihulls / Catamarans

Discussion in 'General Catamaran Discussion' started by Crewagency, May 6, 2010.

  1. Crewagency

    Crewagency Guest

    Carl,Lars maybe you should think about opening a new category for Multi-hulls or Catamarans ?

    I am just in progress to start a market research for a high quality and luxury Cat production in the range from 65feet - ??m. First project could also be a 30m Cat.
    Maybe with Wing Technology like on BMW Oracle and also now on Wally.
    Its seems to be working.
    http://www.harborwingtech.com/products_demo.htm

    Back to my question: What is the truth about Cat Sailing and Owning ?

    Compared to the living area space on a Cat / Mono hull Yacht is the berth really double expensive ?
    Here I need some help of the Captains in different Ports to send me info about prices maybe 2 x 20m Berth / Year compared to 1 x 25m Berth / Year or are there already some Ports that offer special Cat places ?

    Is a Cat more stable at anchor ?
    Is a Cat more stable at sea ?
    Is a Cat always xx % faster ? ( We are not talking about high tech racing Yachts )
    Is the closed hauled / hard on the wind course the same ?

    Any other comments about advantages but also disadvantages are very welcome.
  2. YachtForums

    YachtForums Publisher/Admin

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    Good idea. We've had a lot of discussions on the topic. A quick search turned up a bunch of threads. I'm working on another project right now, but will add this to my To-Do list.
  3. Catamaran

  4. Crewagency

    Crewagency Guest

    I had many discussions with some of my Motor Yacht Owners on the German Yacht Show in January and I was very surprised that there is a bigger interest now for Sailing Cats from this side especially the bigger ones with a fly-bridge.

    Just one month later we sold already a new 62 footer to a former Sunseeker MY owner.
    Also investigations for moorings in the Mediterranean Sea comes to the result that some Marinas did not charge additional rent for a Cat compared to a mono hull or just 25 % on Top.

    Also on an 80 footer the Owners cabin can be located on the Main Deck and that will also be a nice feature for Motor Yacht clients.

    Diesel electric propulsion is very good idea for a Cat but this has to be done by specialists otherwise it will end up in reconstruction to normal diesel shaft propulsion what already happened on 2 projects I know.
  5. ____

    Agree, on Hybrid propulsion are made many mistakes and hopeful thinking ending up in money vaporising disasters.

    Can not say too much yet but in short time I can open some more info from running tests with 60' cat running on electric propulsion and regenerated power under sail. So far now the results are awesome.

    Keep fingers crossed as I prefer to not run on one night thick ice.

    Still some small issues to fix and then we're ready to show.

    Greatzzzz
  6. brian eiland

    brian eiland Senior Member

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    Diesel/Electric Propulsion

    I might suggest you gentlemen read thru a few of these discussions:

    http://www.yachtforums.com/forums/technical-discussion/2229-diesel-electric-propulsion.html

    http://www.boatdesign.net/forums/hybrid/diesel-electric-propulsion-sailboats-9310.html

    In these discussions you will find a number of references to some excellent articles that appeared in the publication, "Profession Boatbuilder". Seek those out...very good material.

    Back in the heyday of Superyacht construction just prior to this worldwide recession there was lots of work being done on lots of exciting new projects. The economy now has forced a whole lot of thes advanced projects and companies out of business.

    I was real excited about rim-drive propulsion units (electrical), and the DE work by Glacier Bay. Galcier Bay could no longer sustain their development project, and I see very little new progress on rim-drive....such a shame.
    There are some more links to DE, Rim-Drive, Chain Drive, etc contained in this portion of my website:
    http://www.runningtideyachts.com/dynarig/


    Have a look at the layout on this Humphrey's tri-hull proposal...great aft deck, and great owners cabin
    http://www.yachtforums.com/forums/general-sailing-discussion/8127-new-age-trawler-motorsailer-kite-assisted-poweryacht.html

    And I believe this trend may increase even more as fuel really heats up in price over the next few years (I'm talking doubling in less than 3 years), and owners become more green oriented (even pressured by public opinion).
  7. Ep

    _________

    Dear Steamer,

    I'm very sorry but I cannot really get too much into detail as that is clearly agreed with my client.
    Agreed is agreed, but I'm sorry that I lifted a point of the blanket..it makes indeed hot and is teasing.
    Little I can say:
    The test is done now with 60' sailing yacht with double EP backed up by generators. Under sail we re-generate power by the props and loosing little Kn of course. But we charge enough to motor on the battery banks 50% of our time on the sea.

    That sounds promising but we still have some small issues to fix.

    That needs to be resolved before we go public. You know that some people prefer to kill you on these points before you get your success and for that we didn't made the investments.

    All must be 100% and then we come with figures out which can be checked by every body.

    Lets say were more then confident that a 50' production vessel with this system is under design now and we start to build hull001 I think within 3 months.

    Sure keep you updated here.
  8. lobo

    lobo Senior Member

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    Hudson Marine ?

    Sounds very much like the new Gunboat operation at Hudson Yacht & Marine in Xiamen ;-))
    make sure to give us a shout once the blanket's up
  9. brian eiland

    brian eiland Senior Member

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    Speaking of a great aft deck...on slender hulls ;)

    ...lets see, now shortened this vessel up a little bit and use a single engine powerplant with a controllable pod propulsion...hmmm:cool:

    Attached Files:

  10. brian eiland

    brian eiland Senior Member

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    ...and maybe leave some armament on there for those pirate situations :rolleyes:
  11. Gunboat

    _______

    Nope it isn't......

    More spectacular.... :D
  12. Yacht News

    Yacht News YF News Editor

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  13. brian eiland

    brian eiland Senior Member

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    That would make for quite a superyacht...imagine the interior volumn avaliable :eek:

    And I think it is nicely done, particularly when considering all those 'curvy windowed' new designs (I commented on this before HERE).
  14. brian eiland

    brian eiland Senior Member

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