How British and American yards refined each other's turbines

British and American machinery development benefited from designs moving between the two countries. The Brown shipyard in Britain took American turbine designs and extracted additional power, prompting the original supplier to seek an example for examination. Parsons turbines also travelled to America and were refined there. The American yard is tentatively recalled as Bath Iron Works, and that identification remains uncertain. These exchanges help explain the machinery expertise available for the proposed American fast-battleship alternative.