Global turbine supply creates hidden wartime dependencies

Florida and Utah marked a propulsion change from earlier two-screw American dreadnoughts by using four Parsons turbines and four screws. Their machinery leads into a discussion of the international market for marine turbines before the First World War. Parsons supplied British, American, German, and other builders because it remained the leading turbine maker. American Curtis designs and the later Brown-Curtis partnership offered another strong source, while German domestic production developed more slowly. Those peacetime supply relationships become liabilities when nations that share machinery technology become enemies. Replacing an entire turbine set with a different design would require lengthy yard work, so access to spares and specialist support becomes an operational constraint rather than a minor procurement detail.