Changes

米海軍の条約型重巡洋艦の主兵装として開発され、同主力重巡洋艦群に装備された三連装主砲兵装の改修後期型です。20cm級の砲を一基三門に集約したベーシックでありながら、大火力の主砲兵装として米海軍条約型重巡Northampton級などで運用された三連装重巡主砲、その熟成改良型です。

米海軍の条約型重巡洋艦の主兵装として開発され、同主力重巡洋艦群に装備された三連装主砲兵装の改修後期型です。20cm級の砲を一基三門に集約したベーシックでありながら、大火力の主砲兵装として米海軍条約型重巡Northampton級などで運用された三連装重巡主砲、その熟成改良型です。

This is a late model upgrade of the gun developed by the USN for their treaty heavy cruisers that was mounted on them in triple mounts. It possesses great firepower even though it is just a basic mounting of three 20cm guns in a single turret. This refined and upgraded model was used as the main guns of the USN's Northampton-class treaty heavy cruisers.

''This is a late model upgrade of the gun developed by the USN for their treaty heavy cruisers that was mounted on them in triple mounts. It possesses great firepower even though it is just a basic mounting of three 20cm guns in a single turret. This refined and upgraded model was used as the main guns of the USN's Northampton-class treaty heavy cruisers.''

==Notes==

==Notes==

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==Akashi's Improvement Arsenal==

==Akashi's Improvement Arsenal==