The Mark VIII pom-pom was not a static 1923 design; its mountings evolved while the Bofors was being refined. The octuple mounting entered service in 1930 for carriers, capital ships, and cruisers, concentrating eight barrels under one control team. The quad mounting followed in 1936 and made the weapon practical for lighter cruisers and, increasingly, destroyers. That sequence shows how a navy can diffuse an established weapon down the fleet through mounting design instead of replacing the gun itself.
Notable Point · 34:37-35:47
Mark VIII mountings spread medium AA down the fleet
The 1923 pom-pom design reached capital ships through the 1930 octuple mount, then lighter cruisers and destroyers through the 1936 quad.