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Tamandaré 1972

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comm	Fate
Barroso (ex-Philadelphia) 41	C11		Philadelphia N Yd, USA	28.5.1935	17.11.1936	28.7.1938 // 21.8.1951	stricken 5.1973
Tamandaré (ex-St. Louis) 49	C12		Newport News, USA	10.12.1936	15.4.1938	12.1939 // 6.2.1952	sold 1980

Technical data

Displacement standard, t	C11: 9800 C12: 10560
Displacement full, t	C11: 12700 C12: 13500
Length, m	182.9 wl 185.4 oa
Breadth, m	C11: 21.2 C12: 21.0
Draught, m	C11: 6.94 full load C12: 7.37 full load
No of shafts	4
Machinery	4 sets Westinghouse geared steam turbines, 8 Babcock & Wilcox boilers
Power, h. p.	100000
Max speed, kts	32.5
Fuel, t	oil 1321 - 1982
Endurance, nm(kts)	10000 (15)
Armour, mm	C11: belt: 127 - 83, magazines belts: 51 (fore) - 120 (aft), bulkheads: 127 - 51, deck: 51, barbettes: 152, turrets: 165 - 32 C12: belt: 127 - 83, magazines belts: 51 (fore) - 120 (aft), bulkheads: 127 - 51, deck: 51, barbettes: 152, turrets: 165 - 32, secondary gunhouses: 32 - 25
Armament	C11: 5 x 3 - 152/47 Mk 16, 8 x 1 - 127/25 Mk 27, 4 x 4 - 40/56 Mk 2, 6 x 2 - 40/56 Mk 1, 10 x 2 - 20/70 Mk 24, 1 helicopter C12: 5 x 3 - 152/47 Mk 16, 4 x 2 - 127/38 Mk 29, 4 x 4 - 40/56 Mk 2, 6 x 2 - 40/56 Mk 1, 8 x 1 - 20/70 Mk 10, 1 helicopter
Electronic equipment	C11: SK, SG, Mk 13, 2x Mk 4 radars C12: SK-2, SG, Mk 8, 2x Mk 28 radars
Complement	868

Standard scale images

Graphics

Project history

Barroso was purchased by Brazil in January 1951 and commissioned 21 August 1951. Bulges were added and the armoured conning tower was removed late during the Second World War to help improve stability. The mainmast derricks and catapults were removed prior to transfer. The hangar in the hull of both ships could accommodate two helicopters with spare parts. The nearly flat counter and high freeboard aft provided an excellent helicopter platform.

Tamandaré was purchased by Brazil 20 January 1951 and commissioned 6 February 1952. She differed substantially from the five ex-US Brooktyn class ships in Latin America. Her superstructure was placed closer together; her 127mm guns were paired m gunhouses on high bases- and she had a small tripod abaft the aft funnel.

Ship protection

Main belt abreast machinery was 4.2m high. It was 127mm thick (83mm at lower edge) on 16mm STS plating. There were narrow belts abreast magazines. Fore belt was 51mm thick but aft inner belt had 120mm thickness. Magazines were protected by 93mm bulkheads fore and aft, machinery and magazines were separated by 127-51mm bulkheads. Armoured deck over main belt was 51mm. Barbettes were 152mm thick. Turrets had 165-mm faces, 32-mm sides, 32-mm rears and 51-mm crowns.

Modernizations

1960s, both: - SK or SK-2, SG radars; + SPS-10, SPS-12 radars

Naval service

Tamandaré was sold for breaking up in 1980 and foundered off South Africa on 24 August 1980 while under tow to Taiwan.