| The IJN further classified its destroyers by types, classes, and eventually sub-classes. The "type special" is named as such because of how much a leap forward it was, redefining the general ship design of all future IJN destroyers. Later in WWII, the IJN ordered many specialized destroyers, now divided into type A, for the main combat ones, type B, for the AA-focused ones, type C for the most formidable ones (only experimental), and type D for the cheaper ASW-focused ones. | | The IJN further classified its destroyers by types, classes, and eventually sub-classes. The "type special" is named as such because of how much a leap forward it was, redefining the general ship design of all future IJN destroyers. Later in WWII, the IJN ordered many specialized destroyers, now divided into type A, for the main combat ones, type B, for the AA-focused ones, type C for the most formidable ones (only experimental), and type D for the cheaper ASW-focused ones. |