Just for Bobk,
If you like the unusual job's, here is another of my long ago, retired models It is the USS Neosho. A stern wheel river monitor from the American civil war.
Built on a high density styro foam hull, 1/64 plywood sloping deck, plastic card and lime strip superstructure. The paddle wheel is belt and chain driven from a geared motor.
She uses four rudders, two ahead of the wheel and two behind. This model could steer wherever you wanted it to go, both ahead and astern.
If I get time to refit her, it may make an appearance at next years Wiki...........if......
Ian