Jonsey- Interesting info. I notice that both the Arleigh Burke and T-45 have wider hulls than is usual. I imagine this helps stabilty but I wonder if it reduces speed. Looking at the specs, both ships seem to be able to reach normal destroyer speeds with regular powerplant specs. I find it intesting that the Arleigh Burke has variable pitch screws. I know the Spruance class can do 6 kts on its manueving motors, and thats with the considerable drag of the dead main screw. Being able to feather the mainscrew may allow the ship to cruise at station at decent speeds just on auxiliary motors for high endurance. I also noticed that the T-5 turbines will charge generators which will drive electric motors that turn the main screws instead of being directly connected to the shaft of the screws. I imagine this must enable auxiliary motors to run the main screw, however I dont know how efficiently the auxiliary motors would be able to turn such large screws. Have you served in the Navy?