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IJN-DD-春嵐

IJN-DD-春嵐（はるあらし）

春嵐型大型駆逐艦　春嵐

公試排水量 Displacement 3758.0 t
全長 Length 158.7 m (520.67 ft)
最大幅 Beam 12.0 m (39.37 ft)
吃水 Draft 4.00 m (13.12 ft )
出力 Propulsion 101,540 hp
速力 Speed 49.2 knots (56.61 mph; 91.12 km/h)
乗員 Complement 325

兵装 Armament
12 × 140 mm (5.5 in) guns (3×4)
6 × 25 mm type 96 (triple)
12 × 25 mm type 96 (single)
15 × 610 mm (24 in) type zero torpedo tubes (3×5)
2 x smoke generator

The Haruarashi-type large destroyer is a type of ocean-going large destroyer designed and built by the Empire in the late Ocean War to counter the American Keeling-class destroyers and even some of the light cruisers.
Since the designs of some light cruisers produced and put into service in the early stage of the war(including Tenryū-class, Kuma-class, Nagara-class and Sendai-class) could not keep up with the pace of the practical battle , their functions were partially allocated to the new heavy cruisers (such as Hotaka-class, Tokachi-class, Senjou-class, etc.) and multi-purpose destroyers (such as Haruarashi-class, Kuruarashi-class, and Niwakaame-class, etc.) newly built in the later stage of the war.Among them, some large destroyers were given the task of leading the torpedo fleet and serving as the fleet flagship. One of the representative new destroyers that undertook this task was the Haruarashi-class destroyer.
Compared to the various types of destroyers built by the Empire before, the Haruarashi-class is the first truly large destroyer. Its displacement is close to 4,000 tons, which is nearly 500 tons larger than the displacement of the Akizuki-class and Shimakaze-class. In addition, its length is also comparable to some old light cruisers.
Due to the configuration of larger caliber guns and more advanced armaments than the old destroyers, the firepower of the Haruarashi-class can be said to have surpassed even some old light cruisers in many aspects.

Compared with the old destroyers, the Haruarashi-class destroyers have some new design features.
The first is the use of a double-deck design in the middle of the hull, which has never been used in the history of IJN destroyers. The second deck is used as an air defense deck to enhance the destroyer's self-defense capability when facing attacks from carrier-based aircraft. It is worth mentioning that the designer added a ship-borne crane to the second deck of the Haruarashi-class destroyer, located between the two chimneys to assist in loading and unloading lifeboats, torpedoes, mines and other cargo, enhancing the versatility of this type of ship.The second deck uses two chimneys as support points, connecting the relatively independent searchlight platform and air defense platform of the IJN destroyer.
The second feature is that this type of ship is equipped with a 140mm quadruple gun. This type of gun was originally designed to be used as a secondary gun on battleships and heavy cruisers, but Haruarashi used it as the main gun and installed three , which greatly enhanced its firepower. But at the same time, this also caused it to have to use more space and armor to defend high-risk parts such as its ammunition depot.
Since some destroyers were attacked by US submarines in the previous stage of the war and were silenced, the senior military officials asked the designers to enhance the anti-submarine capability of the new warships. To this end, the Haruarashi-class destroyers are equipped with a retractable submarine detection sonar installed on the bottom of the ship. This is an experimental technology that is not equipped on other type of IJN ships of the same period. The record proves that this equipment still has a considerable effect on improving the anti-submarine reconnaissance capability of the ship. In addition, the Haruarashi-class destroyers can throw two different types of depth charges, one is the traditional depth charge thrown by the throwing machine to the sides and rear of the ship, and the other is a heavy depth charge that slides into the sea from the stern like laying mines. The projection requirements of heavy depth charges are relatively high and due to their long fuses, they have limited damage to submarines staying in shallow waters, but they have a deadly lethality to the new deep reconnaissance and attack submarines adopted by the US Navy-theoretically, they can rely on just one to shatter any submarine within the range of their explosion.
Finally, the ship was equipped with a new type of powerful engine, which enabled it to sail on the sea at a speed of nearly 50 knots in good sea conditions. However, the various new equipment, including the new engine, inevitably increased the construction cost of the ship. Due to budget cuts, only 36 of the 48 Haruarashi-class destroyers originally planned to be built in the late war counterattack phase were completed and equipped. Among them, 15 survived until the end of the war, 17 sank in battle, and 4 were converted into other types of non-combat ships and served until the end of the war.

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