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Saturday 23 January 2016

Russian dreadnought battleship Petropavlovsk 1909-1921 (renamed Marat 1921-1950 and Volhov 1950-1953)


Ceremonial laid down at the Baltic Shipyard, St. Petersburg, Russia on 16 June 1909, building actually started September-October 1909, launched on 22 September 1911, commissioned on 5 January 1915, renamed Marat on 31 March 1921, rebuilt between 1928-1931, plans (Project 27) to rebuilt her again using the bow of her sister ship Frunze (ex-Poltava) were cancelled on 29 June 1948, renamed as a stationary training ship Volkhov on 28 November 1950, stricken on 4 September 1953 and finally broken up.

Of the Gangut or Sevastopol-class. After protests against approving a Vickers design by the Russian navy was decided to open an international design contest resulting in 51 designs sent by 13 shipyards.

The actual building was not realized lacking the needed finances until the Doema (the Russian parliament) approved the budget in 1911. General technical specifications of this class. With a displacement of 23.288 metric tons/22.920 long tons (design)-24.800 metric tons/24.000 long tons/27.300 short tons (actual) and as dimensions 180 (waterline)-181,2 over all) x 26,9 x 8,99 (which was 49cm/1.7”more as the design) metres or 590-594.6 x 88.3 x 29.6 feet. The 4 shafts Parsons steam turbines and 25 Yarrow Admiralty type water tube boilers supplied during trials 52.000 shp allowing a trial speed of 24,1 knots and with a speed of 10 knots a range of 3.200 nautical miles. Their crew numbered 1.149 men. The armour consisted of a waterline belt of 12,5-22,5cm.4,9-8.,9”, a 1,2-5cm/0.47-1.97” thick deck with the gun turrets, barbettes and conning tower protected by respectively 7,6-20,3cm/3.0-8.0” , 7,5-15cm/3.0-5.9” and 10-25,4cm/3.9-10.0” thick armour. The original armament consisted of 4x3-30,5cm/12” Obukhovskii 52 guns, 16x1-12cm/4.7” guns, 1x1-7,6cm/3” Lender anti aircraft gun and 4x1-45cm/17.7” submerged torpedo tubes.