I have been on a ferrie down in north carolina and it had stern propulsion and they took the whole ferrie and turnted it around. So it is possiable we will have to do this in the game.
Okay...but since the ferry in itself is double-ended it should be created as such in the game as well.
I have worked on over 20 double-ended ferries myself, and most of them have a manouvre-position in each end of the wheelhouse. However, the newer ones have one manouvre-position in the middle of the wheelhouse.
This consists of a turnable chair with control levers at both sides.
On these ferries, you have one azimuth-thruster in each end, providing both propulsion and steering.
It works like this: when you sit in your chair, you have one control lever in each hand, at both sides of the chair.
In your right hand, you have the control lever for the aft thruster(by this I mean AFT depending on which way the ferry moves, so it`s the thruster behind your back....hard to explain for a non-englishman
)
In your left hand is the control lever for the thruster in front of you - the bow in this direction.
When the ferry leaves the dock the chair is turned the opposite way and because of this you will still have the thruster behind you in your right hand and the one in the bow in your left....geddit?
For those unfamiliar with double-ended ferries: the ferry is run by both thrusters, pointing backwards, but steered with the one behind your back. When approaching the docks, the thruster in the bow is turned 180 degrees and is used to stop the ferry and steer its bow, while the thruster in the back may have a pitch/rpm of maybe 20-30% and is used to steer the ferry`s stern. This is at least how it`s done on many norwegian ferries.
Hope this may be of some help - if someone involved with making the game or anybody else needs more information, I
will do my very best to be of assistance.
Oh, and by the way: for a picture of the control lever for the thruster, go to: http://www.lilaas.no/sw251.asp ...it consists of a regular throttle, this is mounted on a 360 degrees "plate" so that you choose the way you want to thrust - almost as an outboard motor.