NRP Almirante Gago Coutinho (A523)
.JPG) NRP Almirante Gago Coutinho at Pipas port, Azores. | |
| History | |
|---|---|
 United States
| |
| Name: | USNS Assurance (T-AGOS-5) |
| In service: | 1 May 1985 |
| Out of service: | 6 January 1995 |
| Struck: | 6 January 1995 |
| Status: | In service as a survey ship |
 Portugal
| |
| Name: | NRP Almirante Gago Coutinho (A523) |
| Namesake: | Gago Coutinho |
| Acquired: | September 1999. |
| Commissioned: | 1999 |
| In service: | 1999 |
| Status: | In service |
| General characteristics | |
| Class & type: | Stalwart-class Ocean Surveillance Ship |
| Displacement: | 1565 tons (light) 2535 tons (full) |
| Length: | 224 ft (68 m) |
| Beam: | 43 ft (13 m) |
| Draft: | 15 ft (4.6 m) |
| Complement: | 20 |
NRP Almirante Gago Coutinho (A523) is a ship of the Portuguese Navy' Dom Carlos I-class survey vessels (ex-US Stalwart-class surveillance ships adapted in Portugal for the execution of hydrography and oceanography surveys). Before the transference to the Portuguese Navy, Almirante Gago Coutinho was the USNS Assurance (T-AGOS-5) surveillance ship of the United States Navy.
Design
The Stalwart-class ocean surveillance ships were succeeded by the longer Victorious-class ocean surveillance ships. Assurance had an overall length of 224 feet (68 m) and a length of 203 feet 6 inches (62.03 m) at its waterline. It had a beam of 43 feet (13 m) and a draft of 15 feet (4.6 m). The surveillance ship had a displacement of 1,600 tonnes (1,600 long tons; 1,800 short tons) at light load and 2,301 tonnes (2,265 long tons; 2,536 short tons) at full load. It was powered by a diesel-electric system of four Caterpillar D-398 diesel-powered generators and two General Electric 550 metric horsepower (540 shp; 400 kW) electric motors. This produced a total of 3,200 metric horsepower (3,200 shp; 2,400 kW) that drove two shafts. It had a gross register tonnage of 1,584 and a deadweight tonnage of 786.[1]
The Stalwart-class ocean surveillance ships had maximum speeds of 11 knots (20 km/h; 13 mph). They were built to be fitted with the Surveillance Towed Array Sensor System (SURTASS) system. The ship had an endurance of thirty days. It had a range of 3,000 miles (2,600 nmi; 4,800 km) and a speed of 11 knots (20 km/h; 13 mph). Its complement was between thirty-two and forty-seven. Its hull design was similar to that of the Powhatan-class fleet ocean tugs.[1]
History
USNS Assurance was a Stalwart-class modified tactical auxiliary general ocean surveillance ship of the United States Navy. Stalwart class ships were originally designed to collect underwater acoustical data in support of Cold war anti-submarine warfare operations in the 1980s.
In 1999, ex-USNS Assurance was transferred to Portugal and is now NRP Almirante Gago Coutinho survey ship.[2]
References
- 1 2 Norman Polmar (2005). The Naval Institute Guide to the Ships and Aircraft of the U.S. Fleet. Naval Institute Press. p. 617. ISBN 978-1-59114-685-8.
- ↑ World Navies Today: Portugal
External links
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