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fighting ships of the world

PERUVIAN NAVY (PERU)

CRUISERS

ALMIRANTE GRAU light cruisers (1907)

Almirante Grau 1910

Almirante Grau 1944

Name No Builder Laid down Launched Comp Fate
Almirante Grau   Vickers, Barrow, UK 1905 27/3/1906 1/3/1907 stricken 6/1958
Coronel Bolognesi   Vickers, Barrow, UK 1905 24/9/1906 19/11/1907 stricken 6/1958

  

Displacement normal, t

3100

Displacement full, t

4877

Length, m

112.8 pp 115.8 oa

Breadth, m

12.3

Draught, m

4.30

No of shafts

2

Machinery

4-cyl VTE, 10 Yarrow boilers

Power, h. p.

14000

Max speed, kts

24

Fuel, t

coal 500

Endurance, nm(kts)

3276(10)
Armour, mm belt: 38, deck: 38, shields: 76, CT: 76

Armament

2 x 1 - 152/50 Vickers J, 8 x 1 - 76/40 Vickers, 6 x 1 - 57/40 Hotchkiss, 2 x 1 - 37/20 Hotchkiss, 2 - 450 TT

Complement

320

Ship project history: On centuries border the Government of Peru has made a decision about strengthening of the navy representing concourse of small gunboats and armed merchant vessels. The order for two small cruisers was received by Vickers; building contract for Almirante Grau has been concluded 19/6/1905, Coronel Bolognesi 29/11/1905.
    On construction Peruvian ships were close to British scouts of Sentinel class built by the same builder, differing by forecastle form (flush deck instead of turtleback), number of funnels (two instead of three) and stronger armament. Almirante Grau was built as a flag ship, therefore she had additional accommodation spaces in high poop and differed from sister-ship by increased approximately on 20t displacement. On trials both ships exceeded 24kts contract speed (Almirante Grau reached 24.64kts).

Ship protection: Armour protection consisted of 38mm belt amidshipst and armoured deck of the same thickness covering machinery. CT and shields of 152mm guns were protected by 76mm armour.

Modernizations: 1923-1925, both: boilers were converted to oil fuel (500t oil, 14000hp, 24kts, 3700(10)nm); - 2 x 1 - 76/40

1933-1935, both: boilers were replaced by new 8 Yarrow boilers (14000hp, 23.5kts, 3700(10)nm)

1936, both: main mast was removed; - 2 x 1 - 76/40, 6 x 1 - 57/40, 2 x 1 - 37/20; + 2 x 1 - 76/40 11-shiki, 2 x 2 - 13.2/76

1942-1944, both: fore pole mast was replaced by tripod, superstructures rebuilt; - 2 x 2 - 13.2/76, 2 - 450 TT; + 7 x 1 - 12.7/90, 1 DCT, 2 DCR

Naval service: In 1950th both cruisers were used as submarine depot ships.

Coronel Bolognesi 1930s

Almirante Grau 1950

Coronel Bolognesi 1950

Ivan Gogin, 2011-15