Greenhalgh 1943
Mariz e Barros 1968
| Name | No | Yard No | Builder | Laid down | Launched | Comp | Fate |
| Mariz e Barros | M1, later D26 | Arsenal de Marinha, Ilha das Cobras, Rio de Janeiro | 5/1937 | 28.12.1940 | 11/1943 | stricken 8.1972 | |
| Marcílio Dias | M2, later D25 | Arsenal de Marinha, Ilha das Cobras, Rio de Janeiro | 5/1937 | 20.7.1940 | 11/1943 | stricken 1966 | |
| Greenhalgh | M3, later D24 | Arsenal de Marinha, Ilha das Cobras, Rio de Janeiro | 5/1937 | 8.7.1941 | 11/1943 | stricken 1966 |
|
Displacement standard, t |
1500 |
|
Displacement full, t |
2200 |
|
Length, m |
103.9 pp 108.8 oa |
|
Breadth, m |
10.6 |
|
Draught, m |
3.00 |
|
No of shafts |
2 |
|
Machinery |
2 sets General Electric geared steam turbines, 4 Babcock & Wilcox boilers |
|
Power, h. p. |
42800 |
|
Max speed, kts |
36.5 |
|
Fuel, t |
oil 550 |
| Endurance, nm(kts) | 6000(15) |
|
Armament |
4 x 1 - 127/38 Mk 12, 2 x 2 - 40/56 Mk 1.2, 4 x 1 - 20/70 Mk 4, 1 x 4 - 533 TT, 4 DCT, 2 DCR |
| Electronic equipment | QCR-1 sonar |
|
Complement |
190 |
Project history: First Brazilian-built destroyers, known as Greenhalgh or M class. Drawings were developed by means of American experts (on the basis of American destroyer Mahan), considerable part of equipment therefrom was delivered: General Electric turbines, Babcock and Wilcox boilers, Bethlehem guns; fire control system and sonar. Despite it, building went slowly, and ships were commissioned only 6 years after laying. Original design provided 5 single 127mm/38 Mk12 guns, 4 single Oerlikons and 3 quadruple 533mm TTs, but during completion one 127mm gun and two TT mounts have refused in favour of strengthening of antiaircraft and anti-submarine armaments. One main gun placed in completely covered turret mount, remaining guns stood openly.
Modernizations: late 1940s, presumably all: + SPS-4, SPS-6C, Mk 28 radars
1966, Mariz e Barros: - 2 x 1 - 127/38, 4 x 1 - 20/70; + 1 x 4 Sea Cat GWS20 SAM (8 Sea Cat), 2 x 24 - 178 Hedgehog ASWRL
Naval service: No significant events.
Greenhalgh 1952
© Ivan Gogin, 2011-15