Momi was a Japanese interwar destroyer, the keel of which was laid in 1918, launched in June 1919, and commissioned in the Imperial Japanese Navy in December 1919. The total length of the ship at the time of launching was 85.3 m, width 7.9 m, and her full displacement - about 1050 tons. The maximum speed of the ship was 36 knots. The armament of the unit at the time of launching consisted of 3 120 mm guns and 2 twin 533 mm torpedo tubes.
Momi was the leading unit of the destroyer class of the same name, with a total of 21 ships. Units of this type were built in the years 1918-1920 as part of the so-called Program 8-4 and were to be a specific complement to the larger destroyers of the Minekaze class. It is worth noting that the design of the Momi type units was, on the one hand, a clear development of the Enoki-class destroyers (e.g. the maximum speed was significantly improved, but also the artillery armament was strengthened), and on the other hand, it used many solutions used on Minekaze units. The destroyer Momi was built at a shipyard in Yokosuka and remained in the line until 1932, but did not take part in any major clashes. In 1932, it became a hulk, and was used for various types of tests until 1936.
Wakatake was a Japanese destroyer whose keel was laid in 1921, launched in July 1922, and commissioned in the Imperial Japanese Navy in December 1922. The length of the ship at the time of launching was 85.3 m, width 7.9 m, and the actual full displacement - 1,100 tons. The destroyer Wakatake's top speed was up to 36 knots. The main armament at the time of the launch was 3 120 mm guns in single mounts, and the additional armament was 2 7.7 mm machine guns, depth charge launchers and four 533 mm torpedo tubes.
Wakatake was the first destroyer of the type with the same name - the Wakatake. Ships of this type were built as part of the fleet expansion program of 1921, as a supplement to much larger Minekaze class units. Originally, it was planned to create as many as 23 Wakatake destroyers, but due to budget cuts and restrictions resulting from the Washington Treaty - the number of units was limited to eight. The design relied heavily on the Momi class: the same main armament and ship layout were kept, but the seaworthiness and high-wave stability of the ship were improved. The combat career of destroyer Wakatake began shortly after entering service from combat patrols off the coast of China. These missions continued in the 1930s, especially in the period after 1937, that is, since the outbreak of the regular Japanese-Chinese war. At the time of the outbreak of the Pacific War with the USA in 1941, the ship was perceived as rather outdated and did not participate in key operations of that period. In the first weeks of the war, he searched for American submarines in the home waters, and from the beginning of 1942 until the moment of sinking, he performed primarily escort and convoy functions in the waters of Southeast Asia, e.g. in the region of the Philippines or French Indochina. Wakatake was sunk on March 30, 1944 as a result of an air attack.