The ship in the photograph is called E SHIP and is owned by the German Wind Turbine manufacturer - Enercon. The ship came into service on the 2nd August 2008 and is used to deliver Enercon's products Worldwide.
Newly joined - apologies for resurrecting a topic long done-with, but I just wonder :- are the rotors for electricity generation? not, presumably, directly contributing to propulsion. Also, is there a gyroscopic effect on stability?
Mike
As far as I can tell from the press release, they're for propulsion, and, although nothing says so, they could be useful for close quarter manoeuvring given that there is one at each corner of the ship.
I'm not quite sure how you generate electricity from a rotor - they are not self-spinning, but have to be powered. You could use several instead of the blades of a windmill I suppose (thinking about it, that may have been done) but I'm open to ideas.