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Japan's Imperial Navy flag

Japan's 13 class Battleships

Design

The 13 class were to be high speed battleships that were to be constructed under the 8-8 Project (8 battleships / 8 battlecruisers) and designed by Y. Hiraga.1,2

The 13 class were to be similar to the Kaga class.2

The Washington Treaty limitations caused them to not be constructed and so no names were assigned to them.1,2

Ships

No. 13

  • Manufacturer: Yokosuka Naval Yard1,2
  • 1922: Cancelled.1,2

No. 14

  • Manufacturer: Kure Naval Yard1,2
  • 1921, 19222: Cancelled.1,2

No. 15

  • Manufacturer: Mitsubishi at Nagasaki1,2
  • 1921, 19222: Cancelled.1,2

No. 16

  • Manufacturer: Kawasaki at Kobe1,2
  • 1921, 19222: Cancelled.1,2

Specifications

  13 class
Crew  
Displacement 47,500 tons1,2
Displacement - Loaded  
Physical Characteristics  
Length 915'1, 915' 6"2
279 m2
Length - Water Line 900'2
274.3 m2
Length - Between Perpendiculars 850'1,2
259.1 m2
Beam 101'1,2
30.8 m2
Draft / Height 32'1,2
9.7 m2
Performance  
Speed 30 knots1,2
Range at 16 knots  
Armament 18" twin turrets: 41
18" L/45, 45.7 cm twin turrets: 42
5.5": 161
5.5" L/50, 14 cm: 162
Anti-Aircraft 4.7": 41
4.7" L/45, 12 cm: 42
Torpedo Tubes 24": 81
Torpedo Tubes - Above Waterline 24": 82
Aircraft  
Armor  
Barbettes 9" - 11"2
Belt - Main 13"2, 13.5"1
Control Tower 10" - 14"1,2
Deck 5"1,2
Turrets  
Turrets - Front  
Engines  
Boilers Kanpon Type RO small: 222
Shafts 41,2
Turbines Geared1
Gijutsu Honbu2
HP 150,0001,2
Coal  
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
20th Century American Military History Crucial Site