Cargo container motion equation

Hello everybody,
I’m a rearcher from university of Calabria, I’m working on a ship simulator, the ship is Lexa Maersk Container Ship. I woud need to know how turn rate change with respect to the speed and the rudder degree.
Thanl you

[QUOTE=caluni;69677] I woud need to know how turn rate change with respect to the speed and the rudder degree.
[/QUOTE]

You might get better results by asking the people who already make ship simulators, or ask the naval architects who designed the ship you want to model.