JS Hatsuyuki (DD-122)

History

In the late 1970s, the Japanese government introduced a new batch of guided-missile destroyer battleships, recognized as the Hatsuyuki class. This resulted in a construction period from 1979 to 1986, during which 12 ships were completed to the same standard.

Led by JS Hatsuyuki (DD-122), the class is all traditionally powered and has a relatively traditional design layout. The Hatsuyuki DD-122 was laid by Sumitomo Heavy Industries in Uraga on March 14, 1979 and launched on November 7, 1980.

She was commissioned on March 23, 1982 and transported home from the Yokosuka Naval Base.

The warship remained in service until its decommissioning on June 25, 2010. The First Snow-class guided missile destroyers replaced the Yamagumo-class destroyers, which were built from 1964 to 1977 and in service from 1966 to 2006, with six completed.

The Mitsuyuki class was the first Japanese Maritime Self-Defense Force (JMSDF) class to be equipped with a pure gas turbine engine, and the first to be equipped with the American Harpoon anti-ship and Sea Sparrow (improved). Anti-aircraft missile system - now the main component of current Japanese warships. In all respects, these additions expand the tactical and strategic value of the class and provide the Japan Maritime Self-Defense Force with a capable ocean-going vessel in the region.

Although they are locally classified as destroyers, Western sources tend to view these ships as frigates.

The Hatsuyuki class was scheduled to receive a displacement of 3,100 tons under standard load and 4,065 tons under full load. The overall length reaches 430 feet, the beam is 44.6 feet, and the draft is 13.8 feet. Installed power includes 2 Kawasaki (Rolls-Royce) Olympus TM3B gas turbines rated at 45,000 hp and 2 Kawasaki (Rolls-Royce) RM1C gas turbines rated at 9,900 hp. They drive two axles under the stern and are arranged in a COGOG (combined gas or gas) arrangement to increase efficiency during driving and sprinting maneuvers.

Warships can travel at 30 knots.

With a crew of 200 on board, installed systems include OPS-14 air search radar, OPS-18 surface search radar and OQS-4 hull mounted sonar (towing system added in 1994). Also carries full electronic warfare (EW) gear.

The weapon is a mixture of projectile and missile technology. There is a 76mm OTO Breda deck gun with a turret and 2 Harpoon anti-ship missile launchers above the forecastle, mounted in 4 units. The Mark 29 launcher serves the Sea Sparrow missile. ASROC (anti-submarine rocket) launchers counter the submarine threat to some extent, and provide close-range airstrikes by 2 x 20mm phalanx Gatling artillery platforms (similar turrets added from 1982 to 1996) Defense.

Like other JMSDF battleships, Hatsuyuki is equipped with 2 x 324 mm HOS-301 triple torpedo tubes.

To further emphasize the offensive capabilities of the class, a flight deck was added to the stern. This was used to support a Sikorsky SH-60J(K) Seahawk naval helicopter equipped with an anti-submarine warfare (ASW) role. In addition to hunting submarines, helicopters can also be used as observation platforms, reconnaissance platforms or general observation platforms.

In fact, the primary mission of the first snow class is submarine hunting. The addition of the helipad also makes the class the first JMSDF warship capable of deploying anti-submarine helicopters.

Viewed from the side, the main deck runs uninterrupted from bow to stern. The 76mm deck gun and turret were mounted around the hull, facing the bow with a good angle of fire. The bridge superstructure sits behind the ASROC launcher and also supports the lattice-like main mast.

The mast contains various systems including the radar antenna and is heavily guarded by two CIWS units. The low-profile funnel is located amidships and the secondary hull superstructure is mounted aft. The fire control radome is located on the structure.

The flight deck is located above the main deck at the stern, and the quarter deck section is fitted with sea sparrow units.

Hatsuyuki's sisters served from 1982 to 1987, while the DD-122, DD-123, DD-124, DD-125, DD-126, DD-127, and DD-128 all served from 2010 to 2014 retired. At the time of writing (December 2017), the DD-129, DD-130, DD-131, DD-132, and DD-133 are all still in service.

DD-123, DD-129, DD-131 and DD-133 were all modified at various times to become training ships, these ships received from TV-3517, TV-3519, TV-3518 and TV-3513 New hull numbers that respectively mean classrooms and other modifications to the base design to suit the characters.

Specification

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