Greetings,
Apart from using
1. A couple of Voith-Schneider Propellers (p'hap a ferry style double-ender with one at each end),
2. One or more Schottel units, or
3. Twin screws (I have a contraption with twin screws and steerable Kort nozzles, everything independently controlled – witch tends to confuse my poor brain – so my [stupid] idea is to try something else – possible less taxing for mu brain)
Which provides more maneuverability (assuming a single screw – and probably a bow thruster)?—
A. A Steerable Kort nozzle
B. A fixed Kort + rudder
C. Fixed Kort + Becker rudder
D. No nozzle, becker rudder
E. No nozzle, twin rudders (a lot of the river boats/ship exhibited as models at the SWiss transportation museum in Luzern had a single screw and twin rudders IIRC).
F. No nozzle, plain old rudder.
6. Something else I haven't thought about.
tia/tm