''The 'Long 10cm' was a new, high-angle anti-air gun with ground-breaking, long-barreled, semi-auto-loading guns installed in a powered turret. Used as the primary weapon of the Akizuki-class air-defence destroyers, it was used as the aft main gun of the miracle destroyer that crossed the sea post-war. It was installed in a unique turret that was locally made for this gun.