In his article, Peter Berghold writes:
> Looking at this another way... when an US Navy ship prepares to get
> underway from "Cold Iron" this can take a couple of days. When it tries the
> same stunt from some sort of "warm start" it can just be a few hours.
>
> Pete
Mostly true, depending on what you mean by "cold start". From what I
remember when I was in the Navy, if you include the inspections,
preventive maintenance, etc in that, it could take weeks regardless
of what type of power plant you have. However, lets assume that
all of that is out of the way, and that a "cold start" means
that you're ready to push the button to star the engines to
generate power. Both nuclear and boiler plants on ships generate
steam to turn the turbines. Generating the temperatures and
pressures for a steam plant average about 8 hours to get tooperating
capacity. However, the new gas turbine (read: jet engine) ships
can be underway in about 30 seconds from when the button is pressed.
>From this, you can project technology to get engines that start in
as long or as short a time as you want (yes, I said all of that
just for this). You may want to consider the purpose of the ship
in determining the cold start time, and whether you want to count
inspections or not (if someone is stealing a ship, did the
predessors, inspect it?), etc.
Just some things to think about
- --Bill
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