Agano and the late-war scouting problem

The Agano class offers a revealing comparison because it was built after Japan had left the treaty system but still made difficult trade-offs between light-cruiser firepower and reconnaissance equipment. The ships combined high speed and long range with only six 6-inch guns and two floatplanes. That fit sat uneasily between a destroyer leader and a fleet reconnaissance cruiser. Contemporary British Crown Colony cruisers show that a much heavier light-cruiser battery was possible under wartime construction conditions. Japan had been outside the treaty framework for years and was already moving toward war, so the modest design cannot be blamed on treaty ceilings alone. Agano therefore shows that strategic and industrial preparation remained incomplete even after legal limits disappeared.