Asahi class

Overview

Asahi class

JS Shiranui, an Asahi class destroyer, seen at sea in 2019.
Source: www.mod.go.jp - © GNU Attribution Share Alike license

Origin

Japan

Type

Destroyer

Entered service

2018

Status

In service

Development

Mid 2010's

Developer

Japan

Production

2015 - 2019

Producer

Japan - Mitsubishi Heavy Industries

Unit cost

$ 900 million

Number produced

Designations

25DD (project name)

Notable users

Japan

Details

Facts Asahi class

General

Origin

Japan

Type

Destroyer

Complement

About 230

Dimensions

Displacement

6.800 t full load

5.100 t standard

Length

151 m

Beam

18.3 m

Draft

5.4 m

Propulsion

Arrangement

COGLAG

Machinery

2x LM2500IEC gas turbine

2x IM400 gas turbine generator

1x S12U diesel generator

Power output

62.500 hp for gas turbines

2x 2.8 MW for turbine generators

1x 1.8 MW for diesel generator

Propulsion

2 shafts, variable pitch propellers

Mobility

Speed

30 knots

Sensors

Air/surface search

OPY-1 four-panel radar

Surface search

OPS-48 surveillance radar

Surface search

OPS-20 navigation radar

Sonar

OQQ-24 hull mounted sonar

Sonar

OQR-4 towed array sonar

Systems

Combat data management

OYQ-13

Information hub

OYX-1

Data exchange

NORA-1C-Y1 and NORQ-1 SATCOM

Data exchange

Link 16

ECM system

NOLQ-3D-2 radio detection jammer

ECM system

FAJ static jammer

Decoys

4x 6-tube Mk 137 SRBOC

Decoys

1x self-propelled decoy device

Guns

Dual purpose

1x 127mm Mk 45 Mod 4

CIWS

2x 20mm Mk 15 Phalanx Block IB

Self-defense

12.7mm M2HB heavy machine gun in manual and JSW remote control mounts

SSM

Anti-ship

2x4 Type 90 SSM-1B subsonic anti-ship missile

SAM

VLS

32-cell Mk 41 Mod 9

Short range

RIM-162 ESSM quadpack per Mk 41 VLS cell

ASW

Torpedo tubes

2x3 HOS-303 with Type 12 torpedoes

ASW rocket

Type 07 anti-submarine rocket in Mk 41 VLS

Type 97 or Type 12 324mm torpedo as payload

Aircraft

Facilities

Flight deck and hangar for 1 medium helicopter

Supported types

SH-60K

Media

Asahi class

JS Shiranui, an Asahi class destroyer, seen at sea in 2019.

Source: www.mod.go.jp

Asahi class

JS Shiranui, an Asahi class destroyer, seen in port in 2019.

Source: Hunini

Asahi class

Rear view of an Asahi class destroyer in port in 2019.

Source: Hunini

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Subcomponents

127mm Mk 45

1x 127mm Mk 45 Mod 4 dual purpose gun.

Type 90

2x4 Type 90 SSM-1B subsonic anti-ship missile.

RIM-162 ESSM

RIM-162 ESSM short range surface to air missile quad packed per Mk 41 VLS cell.

20mm Mk 15 Phalanx

2x 20mm Mk 15 Phalanx Block IB close-in weapon system.

Type 07

Anti-submarine rocket for standoff deployment for Type 97 and Type 12 torpedoes. Launched from Mk 41 VLS.

Type 97

Lightweight torpedo optimized for use in deep water. Launched from HOS-303 torpedo tubes and Type 07 anti-submarine rocket.

Type 12

Lightweight torpedo optimized for use in shallow water. Launched from HOS-303 torpedo tubes and Type 07 anti-submarine rocket.

Browning M2HB

Several 12.7mm M2HB heavy machine gun in manual and JSW remote control mounts.