charges were carried. As built, the Yūgumo class had four Type 96 anti-aircraft guns in two twin-mounts forward of the aft smokestack. as with other destroyer classes, as the Pacific War progressed, anti-aircraft armaments were increased. From 1943, two triple-mounts replaced the twins aft and one twin-mount Type 96 was added forward of the bridge and a Type 22 radar. Units surviving into 1944 had a second pair of 25mm triple-mounts added on a platform behind the forward smokestack. The six units surviving into late 1944 received up to twelve additional single-mount Type 96s and a Type 13 radar. also received a number of Type 93 13mm machine guns. Operational history The Yūgumo class were considered elite units and always assigned to escort primary fleet units. They were all lost during the Pacific War. Ships in class Notes References , History of Pacific War Vol.51 The truth of Imperial Japanese Vessels Histories 2, Gakken (Japan), August 2005, Collection of writings by Sizuo Fukui Vol.5, Stories of Japanese Destroyers, Kōjinsha (Japan) 1993, Model Art Extra No.340, Drawings of Imperial Japanese Naval Vessels Part-1, Model Art Co. Ltd. (Japan), October 1989, Book code 08734-10 The Maru Special, Japanese Naval Vessels No.41 Japanese Destroyers I, Ushio Shobō (Japan), July 1980, Book code 68343-42 External links http://www.combinedfleet.com/yugumo_n.htm Destroyer classes