On 11 May 2018, at 18:06, Phil Pugliese (via tml list) <xxxxxx@simplelists.com> wrote:
>
> According to several books I read some decades ago & as best I remember;
>
> When the USN began building Dreadnoughts it also began an evaluation of propulsion schemes by building pairs of ships (classes) w/ differing propulsion;
>
> #1 reciprocating vs turbine  (YES, the USN actually built early Dreadnaughts w/ reciprocating engines!)
>      the turbines won so;
>
> #2 turbine vs turbine (2 competing turbine designs. I believe that one was named 'Parsons')
>      one design was selected & then;
>
> #3 conventional turbo propulsion vs turbo-electric

According to my copy of Janes:

South Carolina and Michigan : both triple expansion with coal fuel

Delaware : triple expansion coal, vs North Dakota : turbine (Curtis, replaced by Parsons) coal

Utah and Florida : Parsons turbine coal

Arkansas and Wyoming : Parsons turbine coal

New York and Texas : both triple expansion (the offered turbines were not deemed suitable) coal

Oklahoma : triple expansion oil vs Nevada : Curtis turbine oil

Pennsylvania : Curtis turbine oil vs Arizona : Parsons turbine oil

New Mexico : GE turbine oil fuel and electric reduction gear vs Idaho : Parsons turbine oil fuel vs Mississippi : Curtis turbine oil fuel

Phil Kitching