Takanami-class destroyer

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Class overview
Name	Takanami-class destroyer
Builders	Mitsubishi Heavy Industries - Nagasaki shipyards IHI Marine United, Yokohama IHI Marine United, Uraga
Operators	Japan Maritime Self-Defense Force
Preceded by	Murasame class
Succeeded by	Akizuki class
Built	2000–2004
In commission	2003–present
Completed	5
Active	5
General characteristics
Type	General-purpose destroyer
Displacement	4,650 long tons (4,725 t) standard 6,300 long tons (6,401 t) full load
Length	151 m (495 ft 5 in)
Beam	17.4 m (57 ft 1 in)
Height	10.9 m (35 ft 9 in)
Draft	5.3 m (17 ft 5 in)
Propulsion	2 × Ishikawajima Harima LM-2500 gas turbines 2 × Kawasaki Rolls-Royce Spey SM1C gas turbines 60,000 shp (45 MW) 2 shafts
Speed	30 knots (56 km/h; 35 mph)
Complement	175
Sensors and processing systems	OPS-25B radar OPS-28D surface-search radar OPS-20 navigational radar OQS-5 sonar UQR-2 towed sonar Type 81 fire-control system
Electronic warfare & decoys	NOLQ-3 ECM system 4 × Mk137 chaff dispensers
Armament	1 × Otobreda 127 mm/54 gun 2 × missile canister up to 8 Type 90 (SSM-1B) 2 × 20 mm Phalanx CIWS 2 × Type 68 triple torpedo tubes VLS Mk 41 (32 cells)   • Evolved Sea Sparrow SAM   • RUM-139 VL ASROC
Aircraft carried	1 × SH-60J(K) anti-submarine helicopter
Aviation facilities	Hangar and helipad

The Takanami-class destroyer (たかなみ型護衛艦, Takanami-gata-goei-kan) is a class of destroyer serving with the Japan Maritime Self-Defense Force (JMSDF). This warship is the slightly modified class of second-generation, general-purpose destroyers of the JMSDF.^[1]

Since FY1991, the JMSDF started construction of the second-generation, general-purpose destroyers (汎用護衛艦, Hanyou-goei-kan), Murasame class. These destroyers are generally satisfactory for the fleet, but there is some discontent.^[1] From FY1998 onwards, a slightly modified version that corrected these dissatisfaction points was to be built: Takanami class.^[1]

The hull design is generally based on that of the Murasame class. However, the weapons mounted are different, and as a result, the internal structure has also been changed. The large lattice mast affected the stealthiness of the Murasame class, so in Takanami class, it was planned to change to two small masts, but that was not implemented.^[2]

Although their displacement become slightly increased, there was no change to their main engines, as it was not a big difference so it had little effect on the performance of the ship.^[2]

The combat system was slightly improved. The combat direction system is similar to the Murasame class in the first three ships, but in the fourth ship, workstations were changed to AN/UYQ-70, and in the fifth ship, it corresponded to the communication in Link 16.^[3] Radars are the same as those of Murasame class, sonars are also small revision type.^[4]

In terms of weaponry, instead of the 3-inch gun that has been adopted by conventional destroyers, a larger Oto Melara 127 mm gun was introduced. Although vertical launching systems were divided into two places in the Murasame class, 16-cell Mk 41 for VL-ASROC on the bow deck and 16-cell Mk 48 for Sea Sparrow (later replaced with Evolved Sea Sparrow) on the middle deck, they are compiled in one place, 32-cell Mk 41 on the bow deck in this class.^[4]

• List of naval ship classes in service

• Wertheim, Eric (2013). The Naval Institute Guide to Combat Fleets of the World, 16th Edition. Naval Institute Press. ISBN 978-1591149545.

• Abe, Yasuo (July 2000). "History of JMSDF Destroyers". Ships of the World (in Japanese) (571). Kaijinn-sha. NAID 40002155847.
• Fujiki, Heihachiro (August 2003). "Development of multi-purpose DDs for "8-8 escort flotilla". Ships of the World (in Japanese) (614). Kaijinn-sha: 94–99. NAID 40005855328.
• Kaijin-sha, ed. (August 2003). "All of the new Takanami-class DD". Ships of the World (614). Kaijin-sha: 75–101. NAID 40005855324.
• Kōda, Yōji [in Simple English] (August 2012). "Brand-new destroyer Akizuki : its design concept". Ships of the World (764). Kaijin-sha: 91–97. NAID 40019366483.
• Yamazaki, Makoto (October 2011). "Combat systems of modern Japanese destroyers". Ships of the World (in Japanese) (748). Kaijin-sha: 98–107. NAID 40018965310.

Wikimedia Commons has media related to Takanami class destroyers.

• GlobalSecurity.org; JMSDF DD Takanami Class
• MaritimeQuest Onami DD-111 Photo Gallery
• Naval Technology.com
• JMSDF home page (in Japanese)