Rebuilding Giulio Cesare into a 27-knot battleship

The rebuild reduced the main battery from thirteen guns to ten but raised power from roughly 31,000 to 75,000 shaft horsepower and speed from 21 to 27 knots. Boiler count fell from twenty-four to eight, four shafts became two, and cruising range improved to 6,400 nautical miles at thirteen knots. The hull became longer, wider, deeper, and more than 4,000 tons heavier, while deck and barbette protection increased substantially. Boring the main guns from twelve to 12.6 inches extracted more striking power from existing weapons, showing how an established industrial base could modernize a capital ship under tight money and time constraints.