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Japan's Imperial Navy flag

Japan's Sendai class cruiser

Photos

IJN Naka in 1925:
IJN Naka in 1925
Imperial Japanese Navy
IJN Sendai:
IJN Sendai
US Naval Intelligence, A-503-FM-30-50

Design

The Sendai class was based upon the Tenryu class / Nagara class of cruisers.

The Sendai class was to built under the 1920 Program and approved by the 1921 - 1922 Estimates. The Washington Treaty was signed right after the ships were ordered and several had to be cancelled to stay with its limitations.

Was originally going to be called the Nara class, but as it was damaged in an earthquake the Sendai ended up being finished first and the class named after her.

Aircraft

Under the navigation bridge was a hanger for the aircraft. Initially there was a flyoff platform, but no aircraft were ever operationally used from there. Later a catapult was installed between the aft guns, Nos. 6 and 7 and a Type 94 floatplane was used.

Armament

Name Elevation Range
5.5" / 14 cm L/50 Type 3 30° 19,100 m

Engines

Only one Kanpon mixed firing boiler was installed. It was placed in the forward boiler room with its own uptake.

Ships

IJN Ayase

  • Manufacturer: Sasebo Navy Yard
  • 1922: Cancelled.

IJN Jintsu, IJN Zintu

  • Manufacturer: Kawasaki at Kobe
  • March 19, 1921: Named Jintsu.
  • August 4, 1922, October 4, 1922: Laid down.
  • December 8, 1923: Launched.
  • July 31, 1925: Completed.
  • August 1927: Special Great Maneuvers. Collided with and sank the destroyer Warabi.
  • 1929: Catapult installed.
  • 1934: Catapult and tripod mainmast installed.
  • 1940: 21" torpedo tubes replaced by 24".
  • December 1941: Flagship of 2nd Destroyer Flotilla, Southern Force.
  • December 1941 - March 1942: Supported invasions of Philippines, Celebes, Ambon, Timor, and Java.
  • February 1942, February 27, 1942: Battle of Java Sea. All torpedoes fired missed Allied ships.
  • March 1942: Arrived in Japan.
  • May 1942: Member of invasion force, Midway operation.
  • August 18 - 19, 1942: Landed troops on Guadalcanal.
  • August 1942, August 25, 1942: Damaged by a bomb near Guadalcanal. 24 crewman were killed. Japan for repairs.
  • January 1943: Arrived in Truk.
  • July 12, 1943: Sailed from Rabaul to reinforce Kolombangara.
  • July 12 - 13, 1943, July 13, 1943: Sunk by torpedoes and radar controlled gunfire from TF 18 in the Kula Gulf during the Battle of Kolombangara.

IJN Kako

  • Manufacturer: Sasebo Dock Yard, Sasebo Navy Yard
  • March 19, 1921: Named Kako.
  • February 15, 1922: Laid down.
  • March 17, 1922: Cancelled.

IJN Kamo

  • November 5, 1921: Named Kamo.
  • Cancelled.

IJN Kizu

  • November 5, 1921: Named Kizu.
  • Cancelled.

IJN Minase

  • Manufacturer: Uraga
  • 1922: Cancelled.

IJN Naka

  • Manufacturer: Mitsubishi at Yokohama, Yokohama Dock Yard
  • March 19, 1921: Named Naka.
  • June 10, 1922, May 24, 1924: Laid down.
  • September 1923, September 1, 1923: Damaged during Kanto earthquake.
  • March 24, 1925: Launched.
  • November 30, 1925: Completed.
  • August 1927: Special Great Maneuvers. Collided with and cut off stern of a destroyer at night.
  • 1929: Catapult installed.
  • 1934: Catapult and tripod mainmast installed.
  • 1940: 21" torpedo tubes replaced by 24".
  • December 1941: Flagship of 4th Destroyer Flotilla, Southern Force.
  • December 1941: Supported landings at Luzon and Lingayen Gulf.
  • December 10, 1941: Damaged in air attack.
  • January 1942: Supported landings at Tarakan and Balikpapan. Dutch submarine K XVIII missed with torpedoes.
  • February - March 1942: Supported landings in Java.
  • February 27, 1942: Battle of Java Sea. All torpedoes fired missed the Allied ships.
  • March 31, 1942: Invasion of Christmas Island.
  • March 31 - April 1, 1942, April 1, 1942: Torpedoed by USS Seawolf near Christmas Island. Towed to Singapore by Natori.
  • May 1942: Temporary repairs in Singapore.
  • June 1942 - April 1943: One 5.5" gun replaced by 5" Type 89 twin mount. Two 25 mm triple mounts added. A 13 mm quad mount was replaced by a 13 mm twin mount.
  • March 1943: Repairs completed at Maizuru.
  • February 17, 1944: Sunk by aircraft from USS Bunker Hill and USS Cowpens west of Truk. 210 crewman were rescued.

IJN Nayoro

  • November 5, 1921: Named Nayoro.
  • Cancelled.

IJN Otonase

  • Manufacturer: Sasebo Navy Yard
  • 1922: Cancelled.

IJN Sendai

  • Manufacturer: Mitsubishi at Nagasaki
  • March 19, 1921: Named Sendai.
  • February 16, 1922: Laid down.
  • October 30, 1923: Launched.
  • April 29, 1924: Completed.
  • 1929: Catapult installed.
  • 1934: Catapult and tripod mainmast installed.
  • 1940: 21" torpedo tubes replaced by 24".
  • December 1941: Flagship of the 3rd Destroyer Flotilla, Southern Force. Escorted troop convoys to Malaya.
  • January 27, 1942: Helped sink destroyer HMS Thanet off Endau.
  • February - March 1942: Supported landings at Palembang and Java.
  • March 1942: Supported invasion of Sumatra.
  • April 1942: Supported operations around Andaman Islands in Indian Ocean.
  • May 1942: Member of Main Body at Midway.
  • August 1942: Guadalcanal.
  • November 14 - 15, 1942: Member of force that was to bomb Henderson Field on Guadalcanal. During the night battle fired guns and torpedoes at American destroyers. Battleship IJN Kirishima was lost.
  • May - June 1943: Refit in Japan. One 5.5" gun removed. Two 25 mm triple mounts installed.
  • November 2, 1943: Sunk by torpedoes and gunfire from TF39 in Empress Augusta Bay. 185 crewman died.

Specifications

  Sendai class
Crew 450
Displacement 5,113 tons, 5,195 tons
Displacement - Loaded 7,100 tons, 7,609.5 tons
Physical Characteristics  
Length 532', 534', 534' 9", 535'
162.154 m, 162.75 m, 163.03 m
Length - Water Line 513.915', 520'
156.641 m, 158.5 m, 158.53 m
Length - Between Perpendiculars 490', 500'
152.4 m, 152.5 m
Beam 46' 6", 46' 9", 48' 5"
14.17 m, 14.173 m, 14.2 m
Draft / Height 15' 10.5", 15.915', 16', 16' 1"
4.851 m, 4.9 m, 4.91 m
Performance  
Speed 33 knots, 35.2 knots, 35.25 knots
Range at 10 knots 7,800 nautical miles, 9,000 nautical miles
Armament 5.5", 5.5" / 14 cm L/50, 14 cm L/50 Type 3: 7
Anti-Aircraft 3" / 8 cm, 3" L/40, 3" / 13 pdr L/40, 8 cm L/40 Type 3 HA, 3.1": 2
13 mm machine guns: 2
6.5 mm Type 3 machine gun: 2
Machine guns: 2
Saluting Guns 6 cm Yamauchi: 2
Mines 48, 80
Torpedo Tubes 21", 24" / 61 cm, 24" / 61 cm Type 8: 2 mounts 4 tubes each, 6
Aircraft 1
Armor  
Belt - Main 2", 2.5"
5 cm, 6.34 cm
Control Tower 2"
5 cm
Deck 1.5", 2"
2.86 cm, 3.7 cm
Engines  
Boilers 12
Kanpon: 12
Kanpon coal fired: 1
Kanpon mixed fired: 1
Kanpon oil fired: 11, 12
Shafts 4
Turbines Geared, Gihon geared
HP 70,000, 90,000
Coal 300 tons, 570 tons
Oil 1,010 tons, 1,200 tons
  Sendai class 1943
Crew  
Displacement  
Displacement - Loaded  
Physical Characteristics  
Length  
Length - Water Line  
Length - Between Perpendiculars  
Beam  
Draft / Height  
Performance  
Speed  
Range at 10 knots  
Armament 5.5" L/50: 7
Anti-Aircraft 5" DP, 5" L/50 DP, 5" DP twin mounts: 2
25 mm: 44
13 mm, 13.2 mm: 6
Torpedo Tubes  
Armor  
Belt - Main  
Control Tower  
Deck  
Engines  
Boilers  
Shafts  
Turbines  
HP  
Oil  
  Jintsu
Crew  
Displacement  
Displacement - Loaded  
Physical Characteristics  
Length  
Length - Water Line  
Length - Between Perpendiculars  
Beam  
Draft / Height  
Performance  
Speed  
Range at 10 knots  
Armament  
Anti-Aircraft  
Torpedo Tubes  
Armor  
Belt - Main  
Control Tower  
Deck  
Engines  
Boilers  
Shafts  
Turbines Curtis
HP  
Oil  

Sources:

  1. Japanese Warships of World War II, A. J. Watts, 1966
  2. The Imperial Japanese Navy, A. J. Watts and B. G. Gordon, 1971
  3. Cruisers of World War Two An International Encyclopedia, M. J. Whitley, 1995
  4. Conway's All the World's Fighting Ships 1922-1946, Robert Gardiner, 1987
  5. Japanese Cruisers of the Pacific War, Eric Lacroix, Linton Wells II, 1997
  6. The Imperial Japanese Navy in the Pacific War, Mark E. Stille, 2013
  7. Janes' Fighting Ships of World War II, 1989
20th Century American Military History Crucial Site