Sendai-class cruiser

Sendai, note the wider third funnel
Class overview
Name: Sendai class
Builders:
  • Mitsubishi Nagasaki Shipyard
  • Kōbe-Kawasaki Shipbuilding Yard
  • Yokohama Dock Company
  • Sasebo Naval Arsenal
Operators:  Imperial Japanese Navy
Preceded by: Nagara class
Succeeded by: Agano class
Built: 1922-1925
In commission: 1924-1944
Planned: 8
Completed: 3
Cancelled: 5
Lost: 3
General characteristics
Type: Light cruiser
Displacement:
  • 5,195 long tons (5,278 t) (standard)
  • 5,595 long tons (5,685 t) (full load)
Length:
  • 158.53 m (520 ft 1 in) (waterline)
  • 162.15 m (532 ft 0 in) o/a
Beam: 14.17 m (46 ft 6 in)
Draft: 4.8 m (15 ft 9 in)
Depth: 8.85 m (29 ft 0 in)
Installed power: 90,000 shp (67,000 kW)
Propulsion:
Speed: 35.25 kn (65.28 km/h; 40.56 mph)
Range: 5,000 nmi (9,300 km; 5,800 mi) at 14 kn (26 km/h; 16 mph)
Complement: 440
Armament:
  • Sendai, 1924: 7 × 140 mm (5.5 in) guns
  • 2 × 8 cm/40 3rd Year Type naval gun (anti-aircraft guns)
  • 8 × 610 mm (24 in) torpedo tubes (4x2)
  • 16 × 610 mm (24 in) torpedoes
  • 56 × naval mines
  • Naka, Spring 1941: 7 × 140 mm (5.5 in) guns
  • 4 × 25 mm (0.98 in) anti-aircraft autocannons (2x2)
  • 2 × 13 mm (0.51 in) anti-aircraft machine guns (2x1)
  • 8 × 610 mm (24 in) torpedo tubes (2x4)
  • 16 × 610 mm (24 in) torpedoes
  • some depth charges
  • Naka, March 1943: 6 × 140 mm (5.5 in) guns
  • 2 × 127 mm (5.0 in) dual purpose guns (1x2)
  • 10 × 25 mm (0.98 in) AAGs (2x3, 2x2)
  • 2 × 13.2 mm (0.52 in) anti-aircraft machine guns (1x2)
  • 8 × 610 mm (24 in) torpedo tubes (2x4)
  • 16 × 610 mm (24 in) Type 93 torpedoes
  • some depth charges
Armor:
  • Deck: 2.9 cm (1.1 in)
  • Belt: 6.4 cm (2.5 in)
Aircraft carried:
Aviation facilities:
  • 1 × flying-off platform
  • 1 × catapult (1933)

The Sendai-class cruisers (川内型軽巡洋艦 Sendai-gata keijun'yōkan) were a group of warships operated by the Imperial Japanese Navy. The vessels in the class were named after rivers according to the navy's light cruiser naming rule. They participated in numerous actions during the Pacific War and were mainly used as destroyer flotilla leaders.

Design

The Sendai-class light cruisers were a development of the preceding Nagara class. Their boilers were better located, and they had four funnels instead of three. Each ship was designed with a flying-off platform and hangar, but did not actually carry aircraft until a catapult system was installed in 1929.

The layout of the Sendai-class cruiser

Ships in class

Three Sendai-class light cruisers were constructed in Japan during the 1920s; four were laid down, but the last — Kako — was scrapped on the slipway in accordance with the regulations of the 1922 Washington Naval Treaty. The other three were sunk during World War II.

Ship Builder Laid down Launched Completed Fate
Sendai (川内) Mitsubishi Nagasaki Shipyard 16 February 1922 30 October 1923 29 April 1924 Sunk during the Battle of Empress Augusta Bay on 2 November 1943.
Jintsū (神通) Kōbe-Kawasaki Shipbuilding Yard 4 August 1922 8 December 1923 31 July 1925 Sunk during the Battle of Kolombangara on 13 July 1943.
Naka (那珂) Yokohama Dock Company 10 June 1922 24 March 1925 30 November 1925 Hull was burned by earthquake, later scrapped. Laid down once again on 24 May 1924. Sunk during the Operation Hailstone on 17 February 1944.
Kako (加古) Sasebo Naval Arsenal 15 February 1922 Discontinued by Washington Naval Treaty on 17 March 1922 and scrapped. Naval budget was used for the Furutaka-class cruiser.
Ayase (綾瀬) Cancelled and re-planned as Furutaka-class cruiser in March 1922.
Minase (水無瀬)
Otonase (音無瀬)
and one cruiser		 Cancelled following the Washington Naval Treaty.

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