Asahi-class destroyer

The Asahi class of destroyers is a class of warships of the Japan Maritime Self-Defense Force. The Ashai is largely based on the Akizuki-class destroyer; While the Akizuki-class specialized in anti-air warfare, the Asahi-class was designed to specialize in anti-submarine warfare. The design was initially designated "25DD", referring to a date on the Japanese calendar, specifically the 25th fiscal year of the Heisei period (2013), the year that procurement of the class began.

JS Shiranui (DD-120)
Class overview
BuildersMitsubishi Heavy Industries
Operators Japan Maritime Self-Defense Force
Preceded byAkizuki class
Cost
  • DD119: JPY72.3 billion
  • $893 million (constant 2009 USD)
Built2015–2019
In service2018-present
In commission2018–present
Completed2
Active2
General characteristics
TypeDestroyer
Displacement
  • 5,100 t (5,000 long tons) standard
  • 6,800 t (6,700 long tons) full load
Length151 m (495 ft 5 in)
Beam18.3 m (60 ft 0 in)
Draft5.4 m (17 ft 9 in)
Depth10.9 m (35 ft 9 in)
PropulsionCOGLAG, two shafts, two GE LM2500 turbines
Speed30 knots (56 km/h; 35 mph)
Complement230
Sensors and
processing systems
  • OYQ-13 ACDS
  • FCS-3A AAW system
  • OPY-1 AAW system
  • OQQ-24 ASW system
  • OQR-4 Towed sonar array system
  • NOLQ-3D-2 EW system
  • OPS-48 surface search radar
Armament
  • 1 × Mk. 45 Mod 4 127 mm (5 in)/62 gun
  • 8 × Type 90 Anti-ship missile in quad canisters
  • 2 × 20 mm Phalanx Block1B CIWS
  • 2 × HOS-303 triple 324 mm (12.8 in) torpedo tubes
  • Anti-torpedo System
  • 32-cell Mk. 41 Vertical launching system
    • RIM-162 ESSM SAM
    • RUM-139 VL-ASROC
    • Type 07 VL-ASROC
Aircraft carried1 × SH-60K helicopter

The lead ship, Asahi, is the third ship to hold the name after the Asahi-class destroyer escort lent from the United States Navy in 1955, and the Imperial Japanese battleship. The second ship of the class, Shiranui, is the third ship to hold the name after the Murakumo and Kagerō-class destroyers.

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