History
Empire of Japan
Name	Matsu
Builder	Mitsubishi Shipyards, Nagasaki
Laid down	3 November 1914
Launched	5 March 1915
Completed	6 April 1915
Decommissioned	1 April 1932
Fate	Scrapped, 1932
General characteristics
Class and type	Kaba-class destroyer
Displacement	655 long tons (666 t) (normal) 810 long tons (820 t) (full load)
Length	260 ft (79.2 m) (pp) 274 ft (83.5 m) (o/a)
Beam	24 ft (7.3 m)
Draught	7 ft 9 in (2.4 m)
Installed power	4 water-tube boilers 9,500 ihp (7,100 kW)
Propulsion	3 shafts; 3 triple-expansion steam engines
Speed	30 knots (56 km/h; 35 mph)
Range	1,600 nmi (3,000 km; 1,800 mi) at 15 knots (28 km/h; 17 mph)
Complement	92
Armament	1 × single 12 cm (4.7 in) gun 4 × single 3 in (76 mm) guns 2 × twin 450 mm (17.7 in) torpedo tubes

Matsu (松, "Pine Tree") was one of 10 Kaba-class destroyers built for the Imperial Japanese Navy during World War I.

Design and description

The Kaba-class destroyers were improved versions of the preceding Sakura class. They displaced 665 long tons (676 t) at normal load and 850 long tons (860 t) at deep load. The ships had a length between perpendiculars of 260 feet (79.2 m) and an overall length of 274 feet (83.5 m), a beam of 24 feet (7.3 m) and a draught of 7 feet 9 inches (2.4 m). The Kabas were powered by three vertical triple-expansion steam engines, each driving one shaft using steam produced by four Kampon water-tube boilers.^[1] Two boilers burned a mixture of coal and fuel oil while the other pair only used oil.^[2] The engines produced a total of 9,500 indicated horsepower (7,100 kW) that gave the ships a maximum speed of 30 knots (56 km/h; 35 mph).^[3] They carried a maximum of 100 long tons (102 t) of coal and 137 long tons (139 t) of oil which gave them a range of 1,600 nautical miles (3,000 km; 1,800 mi) at a speed of 15 knots (28 km/h; 17 mph). Their crew consisted of 92 officers and ratings.^[4]

The main armament of the Kaba-class ships consisted of a single quick-firing (QF) 12-centimetre (4.7 in) gun located on the bow. They were also armed with four QF 3-inch (76 mm) guns on single mounts. Two guns were positioned abreast the middle funnel, one gun was on the aft superstructure and the fourth gun was on the stern. The destroyers' torpedo armament consisted of two twin rotating mounts^[4] for 450-millimetre (17.7 in)^[5] torpedoes located between the superstructure and the stern gun.^[4]

Construction and career

Matsu was laid down at Mitsubishi's shipyard in Nagasaki on 3 November 1914,^[3] launched on 5 March 1915 and completed on 6 April.^[1] During World War I the ship patrolled the area around Singapore^[2] and later served as a convoy escort in the Mediterranean Sea.^[6] Matsu was damaged during the 1923 Great Kantō earthquake, but was repaired. She was stricken from the navy list in November 1931,^[4] was decommissioned on 1 April 1932^[2] and subsequently broken up.^[1]