Engineering:Piratini-class patrol boat
 Piratini underway in 2017
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| Class overview | |
|---|---|
| Name: | Piratini class |
| Operators: |
 Brazilian Navy |
| In commission: | 1971–present |
| Completed: | 6 |
| Active: | 6 |
| General characteristics | |
| Type: | Patrol vessel |
| Displacement: | 105 long tons (107 t) standard |
| Length: | 29.0 m (95 ft 2 in) |
| Beam: | 5.8 m (19 ft 0 in) |
| Draught: | 2.0 m (6 ft 7 in) |
| Installed power: |
|
| Propulsion: | 2 shafts |
| Speed: | 17 knots (31 km/h; 20 mph) |
| Range: | 1,700 nmi (3,148 km; 1,956 mi) at 12 knots (22 km/h; 14 mph) |
| Complement: | 15 |
| Armament: |
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The six Piratini-class patrol boats are a series of patrol vessels that were built for the Brazilian Navy at the Rio de Janeiro Navy Arsenal. Based on the United States Coast Guard Cape-class cutter design, they were built between 1970 and 1971 as coastal patrol vessels. In 1993 they were moved from coastal patrol to riverine patrol.
Description
Based on the United States Coast Guard Cape-class cutter design, the patrol vessels have a standard displacement of 105 long tons (107 t) and a full load displacement of 146 long tons (148 t) with a length between perpendiculars of 29.0 m (95 ft 2 in), a beam of 5.8 m (19 ft 0 in) and a 2.0 m (6 ft 7 in) draught.[1][2] The ships are powered by four Cummins VT-12M diesel engines driving two shafts rated at 1,100 brake horsepower (820 kW). This gives the Piratini class a maximum speed of 17 knots (31 km/h; 20 mph) and a range of 1,700 nautical miles (3,148 km; 1,956 mi) at 12 knots (22 km/h; 14 mph).[3][1]
The Piratini class was initially armed with a .50 calibre machine gun mount and an 81 mm (3.2 in) mortar mount.[3] In 1988, the 81 mm mortar mount was removed.[1] The main armament was later altered to two 12.7 mm (0.50 in) machine guns and one 20 mm (0.79 in) Oerlikon cannon.[2] They were initially designed for coastal patrol. In 1993, the class was designated for riverine patrol.
Ships in class
| Piratini-class patrol boats[2] | |||||
|---|---|---|---|---|---|
| Name | Hull # | Builder | Commissioned | Status | |
| Piratini | P 10 | Arsenal de Marinha, Rio de Janeiro | 30 November 1970 | In service | |
| Piraja | P 11 | 8 March 1971 | In service | ||
| Pampeiro | P 12 | 16 June 1971 | In service | ||
| Parati | P 13 | 29 July 1971 | In service | ||
| Penedo | P 14 | 30 September 1971 | In service | ||
| Poti | P 15 | 29 October 1971 | In service | ||
Service history
The class was constructed as part of the offshore agreement with the United States. All six vessels were completed in 1970–1971.[3] In 2009, Piratini, Penedo and Poti were based at Ladário Fluvial Base in Mato Grosso, the others, in Amazonas.[2]
Citations
- ↑ 1.0 1.1 1.2 Sharpe 1990, p. 62.
- ↑ 2.0 2.1 2.2 2.3 Saunders 2009, p. 80.
- ↑ 3.0 3.1 3.2 Gardiner, Chumbley & Budzbon 1995, p. 36.
References
- Gardiner, Robert, ed (1995). Conway's All the World's Fighting Ships 1947–1995. Annapolis, Maryland: Naval Institute Press. ISBN 1-55750-132-7.
- Sharpe, Richard, ed (1990). Jane's Fighting Ships 1990–91 (93 ed.). Surrey, United Kingdom: Jane's Information Group. ISBN 0-7106-0904-3.
- Saunders, Stephen, ed (2009). Jane's Fighting Ships 2009–2010 (112 ed.). Alexandria, Virginia: Jane's Information Group Inc.. ISBN 978-0-7106-2888-6.
External links
- PGM-119, NavSource Online
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