----- Original Message ----- > From: Onno Meyer <[email protected]> > > Brandon replied to David: > >> There are several modern warships that combine a diesel (for cruising) >> and a gas turbine (for high speed) to one shaft (Combined Diesel And >> Gas, CODAG). There are other ships with two gas turbines powering one >> shaft, alternating engines for cruise and using both for top speed. It >> appears that the 60+ ships of this Arleigh Burke-class use the COGAG >> (Combined Gas And Gas). > > Steam turbines can also be combined in different configurations, > e.g. two turbines on two shafts for flank speed and a different > turbine driving both shafts for cruise. > > Does size matter?
At TL7 size might matter, but by TL you may be able to pair gas turbines on something as small as a tank. > Re CODAG, wikipedia seems to disagree on the Arleigh Burke. I see it listed with four gas turbines and two shafts. While COGAG isn't specifically mentioned, I think it's a logical assumption. Brandon _______________________________________________ GurpsNet-L mailing list <[email protected]> http://mail.sjgames.com/mailman/listinfo/gurpsnet-l
