Akatsuki-class destroyer (1931)

Not to be confused with the much earlier Akatsuki class of the Russo-Japanese War period.

For other ships with the same name, see Akatsuki-class destroyer.

Ikazuchi in Chinese waters, circa 1938
Class overview
Name:	Akatsuki class
Builders:	Sasebo Naval Arsenal Maizuru Naval Arsenal Uraga Dock Company Fujinagata Shipyards
Operators:	Imperial Japanese Navy Soviet Navy
Preceded by:	Fubuki class
Succeeded by:	Hatsuharu class
In commission:	1932—1944
Completed:	4
Lost:	3
Retired:	1
General characteristics
Type:	Destroyer
Displacement:	1,750 long tons (1,778 t)
Length:	118.5 m (388 ft 9 in)
Beam:	10.4 m (34 ft 1 in)
Draft:	3.2 m (10 ft 6 in)
Propulsion:	2 shaft Kampon geared turbines 3 boilers 50,000 hp (37,000 kW)
Speed:	38 knots (44 mph; 70 km/h)
Range:	5,000 nm at 14 knots (9,200 km at 26 km/h)
Complement:	233
Armament:	6 × Type 3 127 mm 50 caliber naval guns (3 × 2) 2 × Type 93 13mm machine guns (2 × 1) 9 × 610 mm (24 in) torpedo tubes (3 × 3) 18 × Type 93 torpedoes 18 × depth charges

The Akatsuki-class destroyer (暁型駆逐艦, Akatsuki-gata kuchikukan) was a class of four destroyers of the Imperial Japanese Navy. Almost identical in appearance to the previous Fubuki class, they are regarded as a sub-class by many authors, partly because the Imperial Japanese Navy itself kept the improvements made a secret, and did not officially designate these four destroyers as a separate class.

Background

After a number of years of operational experience with the Fubuki class, the Imperial Japanese Navy General Staff issued requirements for four additional Special Type destroyers (特型, Tokugata) destroyers, with a maximum speed of 39 knots (72 km/h), range of 4,000 nautical miles (7,400 km) at 14 knots (26 km/h), and armed with Type 8 torpedoes. These destroyers were intended to operate with the new series of fast and powerful new cruisers also under consideration as part of a program intended to give the Imperial Japanese Navy a qualitative edge with the world's most modern ships. The new vessels were built from 1931-1933.

Design

The Akatsuki vessels had larger boilers and a narrower fore funnel than the previous Fubukis, and internally the number of boilers was reduced from four to three due to improvements in boiler design and efficiency. Other improvements over the Fubuki class included a splinter-proof torpedo launcher-turret, which allowed the torpedo launcher tubes to be reloaded in action.

However, the Akatsuki class shared a number of inherent design problems with the Fubuki class. The large amount of armament combined with a smaller hull displacement than in the original design created issues with stability. After the Tomozuru Incident, in which the basic design of many Japanese warships was called into question, additional ballast had to be added. In the Fourth Fleet Incident, during which a typhoon damaged virtually every ship in the Fourth Fleet, issues with the longitudinal strength of the Akatsuki class hull was discovered. As a result, all vessels were reconstructed in 1935-1937. This increased the displacement to 2050 tons standard tons and over 2400 tons full load. The rebuild reduced the top speed slightly.

The main battery consisted of six Type 3 127 mm 50 caliber naval guns, mounted in pairs in three weather-proof, splinter-proof, gas-tight gun turrets . Ammunition was brought up on hoists from magazines located directly underneath each gun turret, which had a greater rate of fire than other contemporary destroyers, where ammunition was typically manually loaded. The mounts could elevate each gun separately to 75° elevation for AA use. Originally Type 8 torpedoes were carried, arranged in three triple mountings. These were later replaced with the famous Type 93 "Long Lance" oxygen-propelled torpedoes during World War II.

List of Ships

Type III (Akatsuki)

Kanji	Name	Builder	Laid down	Launched	Completed	Fate
暁	Akatsuki	Sasebo Naval Arsenal, Japan	17 February 1930	7 May 1932	30 November 1932	Sunk in action off Guadalcanal [09.17S, 159.56E] on 13 November 1942; struck 15 December 1942
響	Hibiki	Maizuru Naval Arsenal, Japan	21 February 1930	16 June 1932	31 March 1933	surrendered 5 October 1945; prize of war to USSR on 5 July 1947; scrapped 1953
雷	Ikazuchi	Uraga Dock Company, Japan	7 March 1930	22 October 1931	15 August 1932	torpedoed W of Guam [10.13N, 143.51E] on 13 April 1944; struck 10 June 1944
電	Inazuma	Fujinagata Shipyards, Japan	7 March 1930	25 February 1932	15 November 1932	Torpedoed W of Celebes [05.08N, 119.38E] on 14 May 1944; struck 10 June 1944

External links

• Pacific War Online Encyclopedia