Note that SOUTH CAROLINA and MICHIGAN were laid-down BEFORE HMS Dreadnought, where the choice of turbines was part of the gamble of building her.  Also note that the first class of German dreadnought battleships after Dreadnought used reciprocating engines. 
The reversions on TEXAS and NEW YORK was a Josephus Daniels' special, due to his irritation at the substandard turbine offers available from domestic sources.

C.T.
-----Original Message-----
> From: "Postmark (via tml list)" <xxxxxx@simplelists.com>
> To: xxxxxx@simplelists.com
> Date: 05/11/18 19:11
> Subject: Re: [TML] HMS Queen Elizabeth aircraft carrier
>
> 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
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