rudder for a trimaran superyatch

Discussion in 'Propulsion' started by ruminame, Jan 27, 2010.

  1. ruminame
    Joined: Dec 2009
    Posts: 30
    Likes: 1, Points: 0, Legacy Rep: 28
    Location: Dhaka

    ruminame Junior Member

    i am designing a trimaran superyatch of 51 m length, breadth of vaca hull 5m,speed max 15 knot,displacement 602 tonnes,cb .236
    What kind of rudder should i choose???????
    plz tell me specific dimension of it.
    What propulsion system and steering system will suitable for this kind of superyacht?????
     
  2. mark775

    mark775 Guest

    Are .. you .. kidding?
     
  3. gonzo
    Joined: Aug 2002
    Posts: 16,190
    Likes: 1,362, Points: 123, Legacy Rep: 2031
    Location: Milwaukee, WI

    gonzo Senior Member

    A 3.5 HP British Seagull for propulsion.
    Styrofoam rudders float when broken and can be recovered by trained swiming monkeys.
     
  4. Itchy&Scratchy
    Joined: Jul 2008
    Posts: 140
    Likes: 3, Points: 0, Legacy Rep: 117
    Location: Oxford & South Africa

    Itchy&Scratchy Senior Member

    LOL this guys a frikkin idiot isnt he????:p
     
  5. gonzo
    Joined: Aug 2002
    Posts: 16,190
    Likes: 1,362, Points: 123, Legacy Rep: 2031
    Location: Milwaukee, WI

    gonzo Senior Member

    Just because your monkeys can't swim is no reason to talk like that.
     
  6. zeroname
    Joined: Oct 2008
    Posts: 276
    Likes: 5, Points: 0, Legacy Rep: 90
    Location: Europe

    zeroname Naval Architect

    there's a lot of newbie n students over here.. so u guys should teach or advice rather than criticize like stupid... or keep silent :)
     
  7. kistinie
    Joined: Aug 2007
    Posts: 493
    Likes: 8, Points: 0, Legacy Rep: -74
    Location: france

    kistinie Hybrid corsair

    Ruminame
    Try to look at trimaran war boats

    3 electric PMBL thrusters + few generators

    I think you even could avoid the rudders, so have a safer, simpler boat.
     

    Attached Files:

  8. Leo Lazauskas
    Joined: Jan 2002
    Posts: 2,696
    Likes: 151, Points: 63, Legacy Rep: 2229
    Location: Adelaide, South Australia

    Leo Lazauskas Senior Member

    Are you sure the maximum speed is 15 knots?
    Leo.

    P.S. Stop using up all the question marks! It looks like an idiot jumped on your keyboard.
     
  9. gonzo
    Joined: Aug 2002
    Posts: 16,190
    Likes: 1,362, Points: 123, Legacy Rep: 2031
    Location: Milwaukee, WI

    gonzo Senior Member

    Zeroname: This is my advise to students: Don't bite more than you can chew. Start by designing a small boat before you go to superyachts. That involves a degree of complexity that only a handful of designers in the world are capable of.
     
  10. kistinie
    Joined: Aug 2007
    Posts: 493
    Likes: 8, Points: 0, Legacy Rep: -74
    Location: france

    kistinie Hybrid corsair

    To student ?

    May be the trimaran case was imposed by a teacher ?

    May be the teacher knows what he is doing ?
    Or as you say Gonzo, may be not.
     
  11. gonzo
    Joined: Aug 2002
    Posts: 16,190
    Likes: 1,362, Points: 123, Legacy Rep: 2031
    Location: Milwaukee, WI

    gonzo Senior Member

    If they are given a superyacht to design by themselves, they should think about finding a new school. There are several threads from student asking questions like that. The problem is that they don't have the knowledge level to understand the answers.
     
  12. Itchy&Scratchy
    Joined: Jul 2008
    Posts: 140
    Likes: 3, Points: 0, Legacy Rep: 117
    Location: Oxford & South Africa

    Itchy&Scratchy Senior Member

    Well I apologise for my remark if he is in fact a student, Im normally the first one to try and help if my knowledge allows, but after reading the post I got the feeling that someone has offered him a load of dosh to design or even(gulp) build a boat. and hes asking for dimensions for the rudder, clearly if that is the case he doent have the necessary skills to attempt it , yet!
    Maybe he'll come back and clarify why etc and someone can try to help him.
    regards
    Itchy
     
  13. Fanie
    Joined: Oct 2007
    Posts: 4,603
    Likes: 174, Points: 63, Legacy Rep: 2484
    Location: Colonial "Sick Africa"

    Fanie Fanie

    Good grief ! 602 tonnes ! How did you get the 2 tonnes ? With or without the rudder ?
     
  14. gonzo
    Joined: Aug 2002
    Posts: 16,190
    Likes: 1,362, Points: 123, Legacy Rep: 2031
    Location: Milwaukee, WI

    gonzo Senior Member

    1/2" steel plate
     

  15. gonzo
    Joined: Aug 2002
    Posts: 16,190
    Likes: 1,362, Points: 123, Legacy Rep: 2031
    Location: Milwaukee, WI

    gonzo Senior Member

    PAR it is not a cat but a tri that is out of the bag.
     
Loading...
Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.