Even a gun-focused destroyer cannot dispense with torpedoes, because they supply its most dangerous threat against larger opponents. Finding deck space for the launcher competes with the superstructure and gun positions, while a poor location can also restrict its firing arc. Its position reshapes the rest of the ship's arrangement. The design reaches its allowance before rangefinders, acoustics, RDF, and radar are included, so the combat systems compound the displacement problem.
Chapter · 14:14-18:12
A gun destroyer still needs a torpedo threat
On the larger hull, torpedo placement competes with guns, firing arcs, sensors, and balance.