their props being called 'itty bitty.' One big turbine engine driving one big shaft with one big prop at the end. Oh, wait, I think subs are nuclear. Rats, I left my engineering hat in the other room. Hey, check out some of the web sites on individual ships, like the Jarret that Tom was on - or the USS Kearsarge. Beautiful boats, all.
Some specs from the Jarret:
Propulsion:
Two General Electric LM2500 Gas Turbines (40,000 Shaft Horsepower)
One Controllable-Reversible Pitch Propeller
Two 350 Horsepower Electric Drive Auxiliary Propulsion Units