NRP Tridente (docked) at the building yard at HFW at Kiel |
|
| Class overview | |
|---|---|
| Builders: | HDW |
| Operators: | Portuguese Navy |
| Preceded by: | Albacora class submarines |
| Building: | o |
| Planned: | 3 |
| Completed: | 2 |
| Cancelled: | 1 |
| General characteristics | |
| Type: | Attack submarine (SSK) |
| Displacement: | 1,700 tons (surfaced) 2,020 tons (submerged) |
| Length: | 67.7 m (222 ft) |
| Beam: | 6.35 m (21 ft) |
| Draught: | 6.6 m (22 ft) |
| Propulsion: | Diesel-electric, fuel cell AIP, low noise skew back propeller |
| Speed: | 20 knots (37 km/h) submerged 10 knots (19 km/h) surfaced 6 knots (11 km/h) AIP system |
| Range: | 12,000 nautical miles (22,000 km) at 8 knots (15 km/h) |
| Endurance: | 60 days |
| Test depth: | superior to 300 m (984 ft) |
| Capacity: | 14 Marines |
| Complement: | 7 Officers 10 Sergeants 16 Sailors |
| Sensors and processing systems: |
Kelvin Hughes KH-1007 (F) navigation radar Atlas Elektronik GmbH ISUS 90 combat management system |
| Armament: | (8) 533 mm torpedo tubes, (4) subharpoon-capable 12 x Alenia Marconi Systems IF-21 Blackshark torpedo reloads |
The Tridente class, also designated as U 209PN, is a diesel-electric submarine class based on the Type 214 submarine developed by Howaldtswerke-Deutsche Werft GmbH (HDW) for the Portuguese Navy.
This class of submarines was acquired by Portugal to replace the last submarines of the Albacora class, then being operated by the navy. Originally, HDW proposed the Type 209 submarine (U-209) during the competition, but decided to later enter a new proposal based on the Type 214. It is for this reason that the Tridente class is commonly designated as the U 209PN.
The class and its ships are the first to not be named after fish, thus breaking a tradition retracing back to 1913, when the first submarine entered service with the Portuguese Navy.
| Pennant | Name | Laid down | Commissioned |
|---|---|---|---|
| S167 | NRP Tridente | 2005 | May 2010 |
| S168 | NRP Arpão | 2005 | December 2010 |