Piratini-class patrol boat
 Piratini underway in 2017
| |
| 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 |
|
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
[edit]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
[edit]| 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
[edit]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
[edit]- ^ a b c Sharpe 1990, p. 62.
- ^ a b c d Saunders 2009, p. 80.
- ^ a b c Gardiner, Chumbley & Budzbon 1995, p. 36.
References
[edit]- 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.
- 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
[edit]- PGM-119, NavSource Online