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  • IJN Haruna Battlecruiser / Battleship / Fast Battleship

    The IJN Haruna managed as a battlecruiser during World War 1 and survived most of World War 2 as a battleship and fast battleship.

     Updated: 5/30/2017; Authored By Staff Writer; Content ¬©www.MilitaryFactory.com

    Haruna served the Imperial Japanese Navy (IJN) throughout World War 1 (1914-1918) and World War 2 (1939-1945). She was designed with the assistance of the British and formed the forth ship of the four-strong Kongo-class battlecruiser group. These vessels were commissioned from 1913 to 1915 and managed healthily long service careers spanning from 1913 until 1945. By the end of their time at sea, all but one of the class survived war and this sole example was scrapped after being sunk at her moorings during World War 2. As battlecruisers, theses ships were to serve in the capital ship role and carried large caliber main batteries. Unlike battleships, however, armor protection was sacrificed for speed.

    Haruna was ordered in 1911 and Kawasaki Shipyards was commissioned for her construction. Her keel was laid down on March 16th, 1912 and she was launched on December 14th, 1913. The vessel's official commissioning came on April 19th, 1915. Haruna held a displacement value of 36,600 tons (long) and measured 728.3 feet long with a beam of 101.7 feet and a draught of 31.9 feet. Her propulsion machinery constituted 36 Yarrow boilers helping to develop 64,000 horsepower to four shafts underneath the stern. Maximum speed in ideal conditions reached 26 knots. Her profile was consistent with the period, the superstructures amassed around midships and bookended by two main masts with several smoke funnels being featured. A very pointed bow ensured speeds could be maintained in relatively calm seas and onboard space allowed for a crew of 1,360 to be carried. Armor protection included 230mm at the turrets, 200mm at the belt and up to 70mm along the deck.

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    IJN Haruna Technical Specifications

    Service Year: 1915
    Type: Battlecruiser / Battleship / Fast Battleship
    National Origin: Imperial Japan
    Ship Class: Kongo-class

    Structural (Crew Space, Dimensions and Weights)

    Complement (Crew): 1,360
    Length: 728.3 feet (221.99 meters)
    Beam (Width): 101.7 feet (31.00 meters)
    Draught (Height): 31.9 feet (9.72 meters)

    Surface Displacement: 37,200 tons

    Installed Power and Base Performance

    Engine(s): Boilers feeding Brown-Curtis turbines and developing 64,000 horsepower to 4 x shafts.

    Surface Speed: 30 knots (35 mph)
    Operational Range: 9,993 nautical miles (11,500 miles, 18,507 km)

    Armament / Air Wing

    As Built:
    8 x (4x2) 14"/45 caliber (356mm) main guns
    16 x (16x1) 6" (152mm) guns
    8 x (8x1) 3" (76mm) main guns
    8 x 21" (530mm) torpedo tubes

    1945 Refit:
    8 x (4x2) 14" (356mm) main guns
    16 x (16x1) 6" (152mm) guns
    8 x (4x2) 5" (127mm) guns
    122 x 25mm Type 96 anti-aircraft guns

    Aircraft: 2 OR 3 x Reconnaissance Floatplane Aircraft

    Global Operators

    Imperial Japan

    Ships-in-Class (4)

    IJN Kongo; IJN Hiei; IJN Haruna; IJN Kirishima