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Japan's Imperial Navy flag

Japan's Oyodo cruiser

Photos

IJN Oyodo capsized in Kure on July 28, 1945:
IJN Oyodo capsized in Kure on July 28, 1945
US Naval Museum, 1977-031-074-084

Design

The Oyodo was to be an improved Agano class cruiser. It was ordered under the 1939 Program / 1939 4th Replenishment Program.

The Oyodo was intended to be used as a flagship of destroyer and submarine units. However, by the time Oyodo was completed Japanese submarines were primarily being used to resuppy isolated island bases.

Aircraft

In place of the aft turrets there was a hanger that could hold six E15K1 "Norm" aircraft. These were to be a new model of aircraft that wasn't built so instead only two floatplanes were carried.

Armament

When the Mogami class cruisers were upgraded to 8" gun, their former 6.1" turrets were used on the Oyodo.

Ships

IJN Oyodo

  • Manufacturer: Kure Dock Yard, Kure Navy Yard
  • December 6, 1939
  • February 14, 1941: Laid down.
  • March 10, 1942: Named Oyodo.
  • April 2, 1942: Launched.
  • February 28, 1943: Completed.
  • July 1943: Rabaul.
  • August 1943 - February 1944: Truk.
  • January 1, 1944: Minor damage from carrier aircraft, from TG50.2, while returning to Truk from supply mission to Kavieng.
  • February 1944: Palau.
  • March 1944: Singapore.
  • 1943 - 1944, Spring 1944, March 1944: Refit at Yokosuka. Large catapult replaced by smaller one. Hanger turned into crew quarters for headquarters staff. Six 25 mm triple mounts and eleven 25 mm guns added.
  • March 1944, March - September 1944: Flagship Combined Fleet.
  • Early October 1944: Six 25 mm guns added.
  • October 1944: Philippines.
  • October 20, 1944: Admiral Ozawa's Northern Force. Battle of Leyte Gulf. Hit by two rockets and one near miss. Eight crewman killed.
  • Late October 1944: Four 25 mm guns added.
  • Late 1944, December 26, 1944: Damaged from two bombs in Philippine Sea. Singapore for repairs.
  • 1945: 52 25 mm guns total.
  • February 1945: Japan. Sailed to Japan with Ise and Hyuga. 25 American submarines hunted them but they were not intercepted.
  • March 19, 1945: Severely damaged by three / five bombs from TF58.
  • July 24, 1945: Hit by five bombs from TF38.
  • July 28, 1945: Sunk. Hit by aircraft from TF38 in Kure. Heavily damaged by four bombs and near misses.

137, IJN Niyoyodo , IJN Niyodo, 810, 811, 812, 813, 814, 5037, 5038

  • Manufacturer: Kure Navy Yard
  • Cancelled.

Specifications

  Oyodo
Crew 776
Displacement 8,164 tons, 10,417 tons
Displacement - Loaded 11,433 tons
Physical Characteristics  
Length 629' 9", 630', 630' 3"
192 m, 192.1 m
Length - Water Line 620', 620' 1"
189 m
Length - Between Perpendiculars 590' 6", 590' 7"
180 m
Beam 54' 6"
16.6
Draft / Height 19' 6", 20'
5.95 m
Performance  
Speed 35 knots, 36 knots
Range at 18 knots 10,000 nautical miles, 10,315 nautical miles, 10,600 nautical miles, 10,619 nautical miles
Armament 6.1" triple turrets, 6.1" / 15.5 cm L/55 triple turrets, 6.1" L/60 triple turrets, 15.5 cm L/60 Type 3 triple turrets: 2
Anti-Aircraft 3.9" twin mounts, 3.9" / 10 cm L/65 twin mounts, 3.9" L/65 twin mounts, 3.9" L/65 Type 98 twin mounts, 10 cm L/65 Type 98 HA twin mounts: 4
25 mm: 12
25 mm triple mounts, 25 mm Type 96 triple mounts: 6
Aircraft 2
Armor  
Belt - Machinery 1.2" - 3", 2"
3 cm - 7.5 cm, 5 cm
Belt - Main 2", 2.4"
3 cm - 7 cm, 5 cm
Control Tower 2 cm - 4 cm
Deck 1.2", 1" - 2", 1.4", 1.5", 2"
5 cm
Magazines 2"
Turrets 1", 2.5", 2.5" - 2.75"
6.3 cm
Engines  
Boilers 6
Kanpon: 6
Shafts 4
Turbines Geared, Kanpon geared
HP 110,000, 110,430
Oil 2,360 tons, 2,445 tons

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. The Imperial Japanese Navy in the Pacific War, Mark E. Stille, 2013
  4. Cruisers of World War Two An International Encyclopedia, M. J. Whitley, 1995
  5. Conway's All the World's Fighting Ships 1922-1946, Robert Gardiner, 1987
  6. Japanese Cruisers of the Pacific War, Eric Lacroix, Linton Wells II, 1997
20th Century American Military History Crucial Site