Cabral-class ironclad

Class overview
A drawing of Cabral
Name:	Cabral
Builders:	J. and G. Rennie, Millwall, London
Preceded by:	Mariz e Barros class
Succeeded by:	Sete de Setembro
Built:	1864–66
In service:	1866–85
Completed:	2
Scrapped:	2
General characteristics
Class and type:	Armored corvette
Displacement:	1,033 long tons (1,050 t)
Length:	160 ft (48.8 m)
Beam:	35 ft 6 in (10.8 m)
Draft:	11.75–12.1 ft (3.6–3.7 m)
Installed power:	750 ihp (560 kW)
Propulsion:	2 shafts; 2 steam engines
Speed:	10.5 knots (19.4 km/h; 12.1 mph)
Armament:	4 × 120-pounder Whitworth rifled muzzle-loading guns or 2 × 70-pounder Whitworth guns 2 × 68-pounder smoothbore guns
Armor:	Belt: 3–4.5 in (76–114 mm)

The Cabral-class ironclads were a pair of iron-hulled, armored corvettes originally ordered by Paraguay in 1864, but were sold to Brazil when Paraguay defaulted on the payments. Configured as central-battery ironclads, they served during the 1864–70 War of the Triple Alliance between Brazil, Argentina and Uruguay against Paraguay.

Design and description

The ships were 160 feet (48.8 m) long, had a beam of 35 feet 6 inches (10.8 m) and drafts of 11.75–12.1 feet (3.6–3.7 m). They displaced 1,033 long tons (1,050 t). The Cabral class had a pair of steam engines, each driving one propeller. The engines produced a total of 750 indicated horsepower (560 kW) and gave the ships a maximum speed of 10.5 knots (19.4 km/h; 12.1 mph). Their crew consisted of 125 officers and enlisted men.^[1]

Cabral was armed with two 70-pounder Whitworth rifled muzzle-loading guns and two smoothbore 68-pounder guns, while Colombo had four 120-pounder Whitworth guns. The ships had a complete waterline belt of wrought iron that ranged in thickness from 114 millimeters (4.5 in) amidships to 76 millimeters (3.0 in) at the ends of the ship.^[1]

Ships

Paraguayan name	Brazilian name	Namesake	Builder^[1]	Laid down	Launched	Completed^[1]	Fate
	Cabral		J. and G. Rennie, Millwall, London			1866	Stricken, 1885
	Colombo		J. and G. Rennie, Millwall, London			1866	Stricken, 1885

Footnotes

1 2 3 4 Gardiner, p. 406

References

Gardiner, Robert, ed. (1979). Conway's All the World's Fighting Ships 1860–1905. Greenwich: Conway Maritime Press. ISBN 0-8317-0302-4.

Brazilian ironclads
Central battery ships	Brasil Tamandaré Barroso Rio de Janeiro Mariz e Barros class Cabral class Sete de Setembro
Turret ships	Lima Barros Silvado
Monitors	Bahia Pará class Javary class

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