The Amphion design considered two triple and two twin six-inch turrets, giving ten guns while seeking a smaller displacement than the Leanders. Triple turrets required a larger and more heavily built hull because of the forces they imposed. That structural demand helps explain the heavily built Town class and its subdivision. A suggested additional influence was a triple-gun test that reportedly split the concrete at the testing site.
Notable Point ยท 9:24-11:08
The proposed ten-gun Amphion
The proposed ten-gun battery raised structural demands that conflicted with the search for a smaller cruiser.