rudder for a trimaran superyatch

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?????

 

Are .. you .. kidding?

 

A 3.5 HP British Seagull for propulsion.
Styrofoam rudders float when broken and can be recovered by trained swiming monkeys.

 

LOL this guys a frikkin idiot isnt he????

 

Just because your monkeys can't swim is no reason to talk like that.

 

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

 

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.

 

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.

 

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.

 

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.

 

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.

 

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

 

Good grief ! 602 tonnes ! How did you get the 2 tonnes ? With or without the rudder ?

 

1/2" steel plate

 

PAR it is not a cat but a tri that is out of the bag.