Comments by "Vikki McDonough" (@vikkimcdonough6153) on "Amity, Anzacs and Air Raids? - Albany, Australia" video.
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Imagine for a moment that some mad genius sees Turbinia in 1897 and realizes that, if you built the turbine to withstand somewhat-higher temperatures and you make sure to use oil (or another fuel which doesn't produce nasty ash residue when burnt), you can use the combustion gasses to drive the turbine directly, cutting out the whole "boiler" business entirely and freeing up a huge amount of weight for things like more gun, more armor, or more speed.
Our mad genius then gets to work, and, a decade and a half later, they've successfully produced a gas turbine suitable for powering a large warship. Admiral Fisher takes notice, and, realizing this will be perfect for making ship go fast, designs the Queen Elizabeths to use GT power.
What happens?
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