The Murasame-class destroyer (むらさめ型護衛艦 Murasame-gata-goei-kan) is a class of destroyers, serving with the Japan Maritime Self-Defense Force (JMSDF). This is the first class of the second-generation general-purpose destroyers of the JMSDF.
JS Samidare in Pearl Harbor
|Builders:||IHI Tokyo Shipyard and Japan Marine United|
|Operators:||Japan Maritime Self-Defense Force|
|Preceded by:||Asagiri-class destroyer|
|Succeeded by:||Takanami-class destroyer|
|Cancelled:||5 (Converted to order for Takanami-class destroyers)|
|Length:||151 m (495 ft)|
|Beam:||17.4 m (57 ft 1 in)|
|Draft:||5.2 m (17 ft 1 in)|
|Speed:||30 knots (35 mph; 56 km/h)|
|Sensors and |
|Electronic warfare |
|Aircraft carried:||1 × SH-60J/K anti-submarine helicopter|
Since FY1977, the JMSDF started construction of general-purpose destroyers (汎用護衛艦 Hanyou-goei-kan) under the eight ships / eight helicopters concept. In this concept, each flotillas would be composed of one helicopter destroyer (DDH), five general-purpose destroyers (DD), and two guided missile destroyers (DDG). By FY1986, construction of twenty first-generation DDs (twelve Hatsuyuki-class and eight Asagiri-class) required for all four flotillas had been completed.
In the original plan, it was supposed to shift to destroyer escorts for local District Forces afterwards. However, if the use of these first-generation DDs was continued to the full extent of ships' life, the relative performance obsolescence was concerned. Thus the JMSDF decided to advance the construction of the new generation DDs. And this was first class of the second-generation DDs.
The hull design was completely renovated from first-generation DDs. In addition to increasing the size in order to reduce the underwater radiation noise, both superstructure and hull was inclined to reduce the radar cross-section. There is however no angled tripod mainmast like the one of the American Arleigh Burke-class destroyer because of the heavy weather of the Sea of Japan in winter. The aft was designed like a "mini-Oranda-zaka" as with the Kongō-class to avoid interference between helicopters and mooring devices.[Note 1]
The basic configuration of the equipment is the same as first-generation DDs, but they are updated and enhanced throughout. Concepts of its combat system were partly based on those of Kongō-class. Two large-screen displays and OJ-663 consoles are introduced in its OYQ-9 combat direction system as Aegis Weapon System (AWS). And OYQ-103 ASW combat systems, based on OYQ-102 of Kongō-class and indirectly AN/SQQ-89, presents an integrated picture of the tactical situation by receiving, combining and processing active and passive sensor data from the hull-mounted array, towed array and sonobuoys.
The advanced OPS-24 active electronically scanned array radar and OPS-28 surface search and target acquisition radar introduced into the fleet with the latter batch of the Asagiri-class remains on board, and there are some new system such as the NOLQ-3 electronic warfare suite and OQS-5 bow mounted sonar.
To enhance the low-observability and combat readiness capability, vertical launching systems were adopted on its missile systems: Mk 41 for VL-ASROC and Mk 48 for Sea Sparrow replace the traditional swivel octuple launchers. And the surface-to-surface missile system is alternated by the SSM-1B of Japanese make. Currently, ships of this class have been switching the point defense missile system from the traditional Sea Sparrow (RIM-7M) to the Evolved Sea Sparrow by FY2012.
|Pennant no.||Name||Laid down||Launched||Commissioned||Home port|
|DD-101||Murasame (Village Rain)||18 August 1993||23 August 1994||12 March 1996||Yokosuka|
|DD-102||Harusame (Spring Rain)||11 August 1994||16 October 1995||24 March 1997||Sasebo|
|DD-103||Yudachi (Evening Downpour)||18 March 1996||19 August 1997||4 March 1999||Ominato|
|DD-104||Kirisame (Drizzle)||3 April 1996||21 August 1997||18 March 1999||Headquarters: Kure Home port: Sasebo|
|DD-105||Inazuma (Sudden Lightning)||8 May 1997||9 September 1998||15 March 2000||Kure|
|DD-106||Samidare (Poetic term for the Rainy Season)||11 September 1997||24 September 1998||21 March 2000||Kure|
|DD-107||Ikazuchi (Ferocious Thunder)||25 February 1998||24 June 1999||14 March 2001||Yokosuka|
|DD-108||Akebono (Light of Daybreak)||29 October 1999||25 September 2000||19 March 2002||Sasebo|
|DD-109||Ariake (Daybreak)||18 May 1999||16 October 2000||6 March 2002||Sasebo|
Media related to Murasame class destroyers at Wikimedia Commons
An active electronically scanned array (AESA) is a type of phased array antenna, which is a computer-controlled array antenna in which the beam of radio waves can be electronically steered to point in different directions without moving the antenna. In the AESA, each antenna element is connected to a small solid-state transmit/receive module (TRM) under the control of a computer, which performs the functions of a transmitter and/or receiver for the antenna. This contrasts with a passive electronically scanned array (PESA), in which all the antenna elements are connected to a single transmitter and/or receiver through phase shifters under the control of the computer. AESA's main use is in radar, and these are known as active phased array radar (APAR).
The AESA is a more advanced, sophisticated, second-generation of the original PESA phased array technology. PESAs can only emit a single beam of radio waves at a single frequency at a time. The AESA can radiate multiple beams of radio waves at multiple frequencies simultaneously. AESA radars can spread their signal emissions across a wider range of frequencies, which makes them more difficult to detect over background noise, allowing ships and aircraft to radiate powerful radar signals while still remaining stealthy.Japanese destroyer Akebono
Four Japanese destroyers have been named Akebono (曙 / あけぼの, "dawn" or "daybreak"):
Japanese destroyer Akebono (1899), an Ikazuchi-class destroyer of the Imperial Japanese Navy during the Russo-Japanese War
Japanese destroyer Akebono (1930), a Fubuki-class destroyer of the Imperial Japanese Navy during World War II
JDS Akebono (DE-201), a destroyer escort (or frigate) of the Japanese Maritime Self-Defense Force in 1955
JDS Akebono (DD-108), a Murasame-class destroyer (1994) that entered into service of the Japanese Maritime Self-Defense Force in 2000Japanese destroyer Ariake
Four Japanese destroyers have been named Ariake (有明 / ありあけ, ”dawn” or "daybreak"):
Japanese destroyer Ariake (1904), a Harusame-class destroyer of the Imperial Japanese Navy (IJN) during the Russo-Japanese War
Japanese destroyer Ariake (1934), a Hatsuharu-class destroyer of the IJN during World War II
JDS Ariake (DD-183), a destroyer of the Japanese Maritime Self-Defense Force (JMSDF), formerly USS Heywood L. Edwards (DD-663)
JS Ariake (DD-109), a Murasame-class destroyer (1994) of the JMSDF launched in 2000Japanese destroyer Ikazuchi
Four Japanese destroyers have been named Ikazuchi (雷 / いかづち, "thunder"):
Japanese destroyer Ikazuchi (1898), lead ship of the Ikazuchi-class destroyer, a class of six destroyers of the Imperial Japanese Navy during the Russo-Japanese War.
Japanese destroyer Ikazuchi (1931), an Akatsuki-class destroyer (1931) of the Imperial Japanese Navy during World War II.
JDS Ikazuchi (DE-202), lead ship of the Ikazuchi-class destroyer escort, a class of two destroyer escorts of the Japan Maritime Self-Defense Force in 1956–1977.
JS Ikazuchi (DD-107), a Murasame-class destroyer (1994) of the Japan Maritime Self-Defense Force in 1999.Japanese destroyer Inazuma
Four Japanese destroyers have been named Inazuma (電 / いなづま, "lightning"):
Japanese destroyer Inazuma (1899), an Ikazuchi-class destroyer of the Imperial Japanese Navy during the Russo-Japanese War
Japanese destroyer Inazuma (1932), an Akatsuki-class destroyer (1931) of the Imperial Japanese Navy during World War II
JDS Inazuma (DE-203), an Ikazuchi-class destroyer escort of the Japan Maritime Self-Defense Force in 1956–1977
JS Inazuma (DD-105), a Murasame-class destroyer (1994) of the Japan Maritime Self-Defense Force in 1999Japanese destroyer Murasame
Four Japanese destroyers have borne the name Murasame (村雨 / むらさめ, "passing shower").
Japanese destroyer Murasame (1903) was a Harusame-class destroyer destroyer of the Imperial Japanese Navy, launched in 1902 and decommissioned in 1923.
Japanese destroyer Murasame (1935) was a Shiratsuyu-class destroyer of the Imperial Japanese Navy, launched in 1935 and sunk 1943 in the Battle of Blackett Strait.
JDS Murasame (DD-107) was the lead ship of the Murasame-class destroyer (1958) in the Japan Maritime Self-Defense Force, launched in 1958 and deleted in 1988.
JDS Murasame (DD-101) is the lead ship of the Murasame-class destroyer (1994) in the Japan Maritime Self-Defense Force, launched in 1994 and as of 2006 still active in service.Japanese destroyer Murasame (1935)
Murasame (村雨, "Passing Shower") was the third of ten Shiratsuyu-class destroyers, and was built for the Imperial Japanese Navy under the "Circle One" Program (Maru Ichi Keikaku). This vessel should not be confused with the earlier Russo-Japanese War-period Harusame-class torpedo boat destroyer with the same name.Japanese destroyer Yūdachi
Four Japanese destroyers have been named Yūdachi (夕立 / ゆうだち, "evening shower"):
Japanese destroyer Yūdachi (1906), a Kamikaze-class destroyer (1905) of the Imperial Japanese Navy during World War I
Japanese destroyer Yūdachi (1936), a Shiratsuyu-class destroyer of the Imperial Japanese Navy during World War II
JDS Yūdachi (DD-108), a Murasame-class destroyer (1958) of the Japanese Maritime Self-Defense Force in 1958
JDS Yūdachi (DD-103), a Murasame-class destroyer (1994) that entered into service of the Japanese Maritime Self-Defense Force in 1999Murasame-class destroyer
Murasame-class destroyer may refer to:
Murasame-class destroyer (1958) (1958–1988), a class of destroyers in the Japan Maritime Self-Defense Force
Murasame-class destroyer (1994), a third-generation warship class in service with the Japan Maritime Self-Defense Force
Combatant ship classes of the Japan Maritime Self-Defense Force
|Helicopter Destroyer (DDH)|
|Guided Missile Destroyer (DDG)|
|All Purpose Destroyer (DDA)|
|Anti Submarine Destroyer (DDK)|
|Destroyer Escort (DE)|
|Frigate Multi-Purpose / Mine(FFM)|
|Patrol Frigate (PF)|
|Ocean Minehunters/Minesweepers (MHS)|
|Coastal Minehunters/Minesweepers (MHC)|