NRP Gonçalves Zarco was a second class Gonçalo Velho-class sloop (aviso de 2ª classe) of the Portuguese Navy. She was designed to operate in the overseas territories of Portugal. The ship entered service in 1933 and was among the core of the fleet until the late 1940s. Following World War II, new ships were acquired and Gonçalves Zarco was discarded 1969.
 Gonçalves Zarco in the 1940s
| |
| History | |
|---|---|
 Portugal | |
| Name | Gonçalves Zarco |
| Builder | Hawthorn-Leslie (UK) |
| Laid down | 9 October 1931 |
| Launched | 28 November 1932 |
| Fate | Discarded 1969 |
| General characteristics | |
| Class and type | Gonçalo Velho-class sloop |
| Displacement | |
| Length | 81.69 m (268 ft 0 in) |
| Beam | 10.82 m (35 ft 6 in) |
| Draught | 3.43 m (11 ft 3 in) |
| Propulsion | 2 turbines; 2,000 hp (1,500 kW) |
| Speed | 16.5 knots (30.6 km/h; 19.0 mph) |
| Range | 6,000 nmi (11,000 km; 6,900 mi) at 10 knots (19 km/h; 12 mph) |
| Complement | 142 |
| Armament |
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Design and description edit
Gonçalves Zarco was a sloop of the Gonçalo Velho class. They were based on the Royal Navy's Bridgewater-class sloops, but with a heavier armament and omitting the minelaying equipment of the British ships.[1] Gonçalves Zarco's hull was 81.69 metres (268 ft 0 in) long overall and 76.20 m (250 ft 0 in) between perpendiculars, with a beam of 10.82 m (35 ft 6 in) and a draught of 3.43 m (11 ft 3 in). Two Yarrow boilers fed Parsons geared steam turbines, giving 2,000 shaft horsepower (1,500 kW) and driving two propeller shafts, with a design speed of 16.5 knots (30.6 km/h; 19.0 mph). 470 tons of oil were carried giving a range of 6,000 nautical miles (11,000 km; 6,900 mi) at 11 knots (20 km/h; 13 mph).[2] They had a standard displacement of 950 tonnes (930 long tons) and 1,414 t (1,392 long tons) at full load. They had a crew of 142 initially, but this was later reduced to 128.[2][3]
Armament consisted of three 120-millimetre (4.7 in) guns in single mounts on the ship's centreline, with two forward and one aft. Four 2-pounder (40 mm) pom-pom anti-aircraft (AA) guns were fitted, while four depth charge throwers provided an anti-submarine armament.[2] In 1943, the 40 mm guns were removed and replaced by five single-mounted 20 mm (0.79 in) AA cannon.[3]
Construction and career edit
In 1930, Portugal set up a ten-year plan to modernise its navy. As part of this programme, a contract was placed with the British shipbuilder Hawthorn Leslie for two sloops, to be named Gonçalo Velho and Gonçalves Zarco. Gonçalves Zarco was laid down on 9 October 1931, and launched on 28 November 1932.[3] Construction was completed in May 1933.[3] It was among the ships that formed the core of the fleet until the late 1940s. They were tasked with coastal defence and defence of Portugal's colonial possessions.[1] Following World War II, the ship was reclassified as a frigate. Portugal acquired new ships in the postwar era and Gonçalves Zarco was discarded in 1969.[4]
Citations edit
- ^ a b Roberts 1980, pp. 396–397.
- ^ a b c Roberts 1980, p. 397.
- ^ a b c d Blackman 1953, p. 290.
- ^ Gardiner, Chumbley & Budzbon 1995, p. 319.
References edit
- Blackman, Raymond V. B., ed. (1953). Jane's Fighting Ships 1953–54. London: Sampson, Low and Marston. OCLC 913556389.
- Gardiner, Robert; Chumbley, Stephen & Budzbon, Przemysław, eds. (1995). Conway's All the World's Fighting Ships 1947–1995. Annapolis, Maryland: Naval Institute Press. ISBN 1-55750-132-7.
- Roberts, John (1980). "Portugal". In Chesneau, Roger (ed.). Conway's All the World's Fighting Ships 1922–1946. Greenwich, UK: Conway Maritime Press. ISBN 0-85177-146-7.