BNS Tocantins (CA-1931)

 

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Built as scouts for the battlefleet Brazil had bought from Great Britain, the ships were also built in Britain as typical British cruisers. Like the Chileans the Brazilians ships also mounted 9.2" guns in twin mounts. But where the Chilean ships weapons came from the old Lord Nelson and Agamemnon's secondary turrets, the Brazilian guns and turrets were built from new. This meant that the guns and turrets were built to modern standards with longer caliber guns (50) and higher elevation (45 degrees) than the earlier models.

With a secondary armament of 8 x 4" in single AA mounts, these were replaced in the ships 1939 refit in Britain. The 1939 refit was to upgrade the AA equipment with both the light and heavy AA receiving increases. To enable this also required resiting the torpedo tubes.

Better aircraft handling facilities were fitted as well as the ships first AA directors which had not been previously fitted, these were especially required with the new twin 4.5" dual purpose turrets.

Their refits completed the ships steamed back to Brazilian waters just in time to take part in the Uruguyan Shelf battle to stop the Argentinian minelayers from interfering with Brazilian coastal shipping traffic.

 

Displacement 13,500 tons std 16,250 tons full load
Length 610 ft
Breadth 66 ft
Draught 25 ft
Machinery 4 shaft steam turbines, 90,000shp
Speed 33 knots
Range 8500 miles at 16 knots
Armour 4" side, 2.5" deck, 5" turrets
Armament As Completed 1931

8 x 9.2" (4x2)

8 x 4" (8x1)

8 x 2pd (2x4)

13 x 20mm (13x1)

After 1939 Refit

8 x 9.2" (4x2)

12 x 4.5 (6x2)

12 x 2pd (3x4)

20 x 20mm (20x1)

Aircraft 2 3
Torpedoes 8 x 21" (2x4) 6 x 21" (2x3)
Complement 800-875
Notes BNS Tocantins (Comp. 08/1931)

BNS Goias (Comp. 10/1931)

 

Forward twin 9.2" on BNS Tocantins.

 

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