Japanese destroyer Naganami

Naganami (長波) was a Yūgumo-class destroyer of the Imperial Japanese Navy.

Design and description
The Yūgumo class was a repeat of the preceding Kagerō-class destroyer with minor improvements that increased their anti-aircraft capabilities. Their crew numbered 228 officers and enlisted men. The ships measured 119.17 m overall, with a beam of 10.8 m and a draft of 3.76 m. They displaced 2110 t at standard load and 2560 t at deep load. The ships had two Kampon geared steam turbines, each driving one propeller shaft, using steam provided by three Kampon water-tube boilers. The turbines were rated at a total of 52000 shp for a designed speed of 35 kn.

The main armament of the Yūgumo class consisted of six Type 3 127 mm guns in three twin-gun turrets, one superfiring pair aft and one turret forward of the superstructure. The guns were able to elevate up to 75° to increase their ability against aircraft, but their slow rate of fire, slow traversing speed, and the lack of any sort of high-angle fire-control system meant that they were virtually useless as anti-aircraft guns. They were built with four Type 96 25 mm anti-aircraft guns in two twin-gun mounts, but more of these guns were added over the course of the war. The ships were also armed with eight 610 mm torpedo tubes in a two quadruple traversing mounts; one reload was carried for each tube. Their anti-submarine weapons comprised two depth charge throwers for which 36 depth charges were carried.

Construction and career
During the 30 November 1942 Battle of Tassafaronga, Naganami led a supply-drum transport run to Guadalcanal (cover), and engaged a U.S. cruiser-destroyer group. During this action, she possibly torpedoed the cruisers USS Pensacola (CA-24), and/or USS Northampton (CA-26).

On 23 October 1944, during the Battle of Leyte Gulf, Naganami escorted Admiral Kurita's 1st Diversion Attack Force. During this time period she assisted in the rescue of the survivors of the cruiser JAPANESE CRUISER Maya, later transferring them to the battleship JAPANESE BATTLESHIP Musashi. She escorted the damaged cruiser JAPANESE CRUISER Takao back to Brunei. During the escort, she tried to destroy Darter but she was rather unsuccessful at it, and just left afterwards.

On 10 November 1944 Naganami joined the escort of troop convoy TA No. 3 as it approached Ormoc, of what was then known as the Battle of Ormoc Bay. She was sunk by aircraft of Task Force 38 on 11 November in Ormoc Bay, west of Leyte (10.83333°N, 124.58333°W). An explosion amidships broke the ship in two. Her sister JAPANESE DESTROYER Hamanami, destroyers JAPANESE DESTROYER Wakatsuki and JAPANESE DESTROYER Shimakaze were all sunk along with Naganami, as were three transports.

Rediscovery
Naganami's wreck was found in November 2017 by Microsoft co-founder Paul Allen's research ship, RV Petrel 827 ft (252 m) below the surface of Ormoc Bay.