IJN Yubari (CL-1927)


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The Yubari was to be the forerunner of a further set of light cruisers. Being an improved Sendai type. However the Washington Treaty meant that cruiser construction from 1923 onwards would centre on heavy cruisers with 8" guns. So the Yubari ended up being a one off class of one ship. The biggest improvement was to go from the single 5.5" guns to 5.5" guns in light twin turrets. To fit the twin turrets required a whole new set of uptakes from the magazines to the guns compared to the Sendai's. A wider, shorter hull meant a reduction in speed of two knots but the ship was still fast enough to act with the destroyer squadrons and older light cruisers.

The twin 5.5" were still a low angle set of guns. Anti-aircraft guns in 3", and eventually 13.2mm and 25mm needed to be fitted for that duty. Fast forward to 1939 and the Yubari was taken in hand to be converted to an anti-aircraft cruiser with the twin 5" dual purpose weapons replacing the low angle 5.5" turrets on a one for one basis.

In this guise the Yubari fought through the war till an American submarine caught the Yubari exiting harbour and put three torpedoes into it.

Displacement 5,500 tons std, 6,850 tons full load
Length 535 ft
Breadth 52 ft
Draught 17 ft
Machinery 4 shaft Steam turbines, 90,000shp
Speed 34 knots
Range 6,500 miles at 18 knots
Armour 2.5" side, 1.5" deck, (1" turrets)
Armament 8 x 5.5" (4x2)

4 x 3" (4x1)

8 x 13.2mm (4x2)

8 x 5" (4x2)

26 x 25mm (6x3 4x2)


Aircraft 2
Torpedoes 12 x 21" 12 x 24" (4x3)
Complement 460
Notes IJN Yubari

The original Yubari, below, showed how far the Japanese were willing to push designs to get as many ships into service as possible. The Yubari was a step too far even for the Japanese.

The Yubari was more big destroyer than cruiser.


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