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The Russian Cruiser Askold (Paperback): Aliaksandr Sukhanevich The Russian Cruiser Askold (Paperback)
Aliaksandr Sukhanevich
R848 R717 Discovery Miles 7 170 Save R131 (15%) Ships in 9 - 17 working days

In the late 1890s the Russian Empire sought to strengthen its presence in the Far East, China and Korea. Faced with a growing threat posed by the Imperial Japanese Navy, the Russians saw an urgent build-up of their naval forces in the region as an utmost priority. On February 20, 1898 Emperor Nicholas II approved a supplementary shipbuilding program "for the Far East", which would see the construction of six 5,000 - 6,000 ton cruisers, in addition to ships already being built under the 1895 program. The task to formulate technical requirement for the new vessels was delegated to the Maritime Technical Committee (Russian: MTK).

The Japanese Light Cruiser Yubari (Paperback): Aliaksandr Sukhanevich The Japanese Light Cruiser Yubari (Paperback)
Aliaksandr Sukhanevich
R748 R642 Discovery Miles 6 420 Save R106 (14%) Ships in 9 - 17 working days

Yubari, the smallest of Japanese cruisers built after World War I, was in fact an experimental design. The ship was intended as a test bed for new technologies to be employed in the construction of the future Furutaka class heavy cruisers. The ship’s lead designer Fujimoto Kikuo, working under the supervision of the Imperial Navy’s chief naval architect Hiraga Yuzuru, set out to create a fast and heavily armed cruiser with the lightest displacement possible. What emerged was a vessel capable of the same speed, range and broadside weight as those of 5,500 ton ships, but with a significantly lower displacement. The construction of the cruiser was initially authorized under the 1917 8-4 Fleet Program, but funding wasn’t available until the launch of the 1921 8-6 Fleet Program, where the ship was listed under the name Ayase. The blueprints were formally approved in October 1921 and on December 23, 1921 the ship was renamed Yubari – a reference to the river Yubarigawa in Hokkaido. Sea trials of the cruiser confirmed her expected sea keeping characteristics, but also showed she was overweight – not an uncommon feature for Japanese designs. After she had been completed, Yubari’s normal displacement (with a 25 percent fuel reserve) was 419 tons (14 percent) above the design figures. This had a detrimental effect on the ship’s speed. During a one-mile run carried out on July 5, 1923 Yubari (displacing 3,463 tons) reached the top speed of 34.786 kt with the machinery producing 61,336 hp at 409.87 rpm. With 75 percent of fuel on board, the cruiser’s draft increased by 61 cm, which increased drag and resulted in the drop of speed below the expected 35.5 kt.

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