Click for Ocean Alexander Click for ZF Click for United Click for Walker Click for Cheoy Lee

Wavepiercers, Trimarans, SWATH and such...

Discussion in 'General Catamaran Discussion' started by YachtForums, Jun 27, 2004.

  1. BMcF

    BMcF Senior Member

    Joined:
    Mar 8, 2007
    Messages:
    51
    Location:
    Maryland
    That is the USN PHM hydrofoil that you are referring to. Their Key West duty was their only real deployment after they were constructed, originally as fast attack craft with anti-ship missiles. Incredibly capable machines but with high cost of operation and maintenance, they were unceremoniously scrapped by the navy quite a few years back. One survives in the hands of private owners who hope to restore it to operational condition..a lofty goal.

    http://www.ussaries.org/

    But powered hydrofoils are 'not dead yet'..here's a shot of one (of the slender monhul, ama-stablised off foil variety) that is still around ( a model/test craft) and a larger version is being built in Norway.

    [​IMG]
  2. K1W1

    K1W1 Senior Member

    Joined:
    Sep 30, 2005
    Messages:
    7,393
    Location:
    My Office
    Hi,

    I undertand this is a Model of No 3.

    Attached Files:

  3. catmando

    catmando Senior Member

    Joined:
    Mar 3, 2005
    Messages:
    471
    Location:
    Arlington Tx
    This hydrofoil has been in development for awhile now. Originally slated for 1500hp gas engines, Turbine Marine in Pompano Beach, Fl. has been contracted to fit their Lycoming 1400-1800hp motors.

    Carl have you seen this craft out testing?

    http://www.hydrofoil.com/50 spec.pdf
  4. YachtForum

    YachtForum YachtForums Publisher

    Joined:
    Dec 22, 2002
    Messages:
    1,323
    Location:
    South Florida
    To the best of my knowledge, only r/c models have been built of the Zytoran. Ken Cook, an expert in the field and president of Hydrofoils, Inc., mocked up an open cockpit, 1/2 scale version of the concept and used it as a test-mule some years ago. I haven't spoken with Ken in ages, so I don't know the status of development.
  5. brian eiland

    brian eiland Senior Member

    Joined:
    Jul 28, 2004
    Messages:
    2,809
    Location:
    St Augustine, Fl and Thailand
    Triton Warship

    At one time I was very interested in what might become of this experiment being carried out jointly with the British and USA navies. I've not heard much of the results, although I was always concerned that the USA might just say' not invented here' and move on.

    So my question is did anyone ever hear some solid data on this experiment??

    One of my reasons for asking relates to this superyacht projection:
    http://www.skysails.info/fileadmin/user_upload/Pressedownload/Dokumente/Brochure_Humphreys.pdf
  6. catmando

    catmando Senior Member

    Joined:
    Mar 3, 2005
    Messages:
    471
    Location:
    Arlington Tx
    Looks like the real thing has been built because Turbine Marine has an announcement about it on their site. All it shows is the pic on Cook's site but I think John Arruda probably went to see the boat, then put it on his site. I'll call John tomorrow and get the scoop.
  7. brian eiland

    brian eiland Senior Member

    Joined:
    Jul 28, 2004
    Messages:
    2,809
    Location:
    St Augustine, Fl and Thailand
    Prout Tri-strike Concept


    Appearing more like the original Navy project, here is the announced Prout Tristrike project.


    The Tristrike 420 Project​


    Michael Ferris, Director of Prout International Super Yacht Division has announced to the Tristrike 420 Project. This 420’/128m tri-hull, motor yacht intended for all oceans, long range, and expedition passage making. Based on a proven military design heritage the Tristrike platform is a “mind blowing” 128m / 420’ X 27.5m / 90’.

    Attached Files:

  8. paulgd

    paulgd New Member

    Joined:
    Apr 4, 2007
    Messages:
    24
    Location:
    UK
    Wave Piercers: Pros and cons.

    Have recently been looking at the wave piercer designs and can't understand why they do not appear to have become more popular. Is it because the design is too radical !!! The main company seem to be New Zealand Yachts; and although they have designed several models none seem to be in production. Is there a basic flaw in the handling of these yachts or is just that no mainstream shipyard has taken the bold step of building one.
    Paul
  9. Seafarer

    Seafarer Senior Member

    Joined:
    Sep 3, 2007
    Messages:
    716
    Location:
    Hudson River
    More importantly for motoryacht use, unless you have a giant high lumbering behemoth of tremendous beam, you're going to leave it docked when the seas kick up. It doesn't take more than a few tall waves slamming the center section to knock your fillings out and send you scurrying home.
  10. SAB

    SAB New Member

    Joined:
    Jul 7, 2004
    Messages:
    77
    Location:
    Melbourne, Australia
    Trimaran motoryacht

    FYI : Azurra Yachts (Australia) have an interesting build underway- a 93' high performance trimaran. You will see it on their website under Projects- Motoryachts.
  11. catmando

    catmando Senior Member

    Joined:
    Mar 3, 2005
    Messages:
    471
    Location:
    Arlington Tx
    I like this one Lars do you? I think it's beautiful;

    http://www.bgvinnovation.fr/bgvanglais/bgv63.htm
  12. Dan Evans

    Dan Evans Senior Member

    Joined:
    Jun 17, 2007
    Messages:
    125
    Location:
    Port Townsend
  13. AMG

    AMG YF Moderator

    Joined:
    Jul 26, 2004
    Messages:
    5,204
    Location:
    Sweden
  14. Marmot

    Marmot Senior Member

    Joined:
    May 20, 2007
    Messages:
    3,315
    Location:
    9114 S. Central Ave
    Why do little rice burners have airfoils on the boot?

    Why did 1960s American cars have tailfins? Because some stylist thought they looked good and some other fool thought they might actually do something. :rolleyes:
  15. Dan Evans

    Dan Evans Senior Member

    Joined:
    Jun 17, 2007
    Messages:
    125
    Location:
    Port Townsend

    That tail is going to catch every sidewind and slow that thing down. Whats that yacht called that some guy built, down in Florida I beleive, out of an old airliner fuselage?
  16. YachtForums

    YachtForums Publisher/Admin

    Joined:
    Dec 22, 2002
    Messages:
    19,481
    Location:
    South Florida
    It was named Cosmic Muffin when Jimmy Buffet owned it. Originally commissioned by Howard Hughes...

    [​IMG]
  17. Fishtigua

    Fishtigua Senior Member

    Joined:
    Jul 20, 2007
    Messages:
    2,519
    Location:
    Guernsey/Antigua
    I see Sully Sullenberger and his co-pilot went back to work today, is this an omen? :)
  18. discokachina

    discokachina Senior Member

    Joined:
    Mar 21, 2010
    Messages:
    1,298
    Location:
    Ft. Lauderdale
    Bahamas Wave Piercing Ferry

    Took these pics of the Balearia Bahamas Express docked at the Western end of Dodge Island, the Port of Miami last week. The same company is also trying to setup Bahamas service from Port Everglades in Ft. Lauderdale and then later to Cuba. http://blogs.sun-sentinel.com/south-florida-travel/2011/08/19/port-everglades-courts-ferry-to-bahamas-later-to-cuba/ She can carry up to 463 passengers and 80 vehicles.

    Unless I was James Bond I would sure hate to find myself infront of or underneath this 74m x 26m behemoth. :eek:

    Attached Files:

    • WP1.JPG
      WP1.JPG
      File size:
      61.6 KB
      Views:
      2,157
    • WP2.JPG
      WP2.JPG
      File size:
      66.2 KB
      Views:
      3,017
    • WP3.JPG
      WP3.JPG
      File size:
      74 KB
      Views:
      1,918
  19. KnitWit

    KnitWit New Member

    Joined:
    May 31, 2011
    Messages:
    20
    Location:
    Miami, Fl
    I wonder how efficient that hull actually is?
  20. Garry Hartshorn

    Garry Hartshorn Senior Member

    Joined:
    Jun 14, 2005
    Messages:
    504
    Location:
    Directly above the center of the earth
    google "INCAT WAVEPIERCER" They are pretty amazing gadgets.

Share This Page