Tridente class submarine
Encyclopedia

The Tridente class, also designated as U 209PN, is a diesel-electric
Diesel-electric
Diesel-electric transmission or diesel-electric powertrain is used by a number of vehicle and ship types for providing locomotion.A diesel-electric transmission system includes a diesel engine connected to an electrical generator, creating electricity that powers electric traction motors...

 submarine
Submarine
A submarine is a watercraft capable of independent operation below the surface of the water. It differs from a submersible, which has more limited underwater capability...

 class based on the Type 214 submarine
Type 214 submarine
The Type 214 is a diesel-electric submarine developed by Howaldtswerke-Deutsche Werft GmbH . It features diesel propulsion with an air-independent propulsion system using Siemens polymer electrolyte membrane hydrogen fuel cells...

 developed by Howaldtswerke-Deutsche Werft GmbH (HDW) for the Portuguese Navy
Portuguese Navy
The Portuguese Navy is the naval branch of the Portuguese Armed Forces which, in cooperation and integrated with the other branches of the Portuguese military, is charged with the military defence of Portugal....

.

This class of submarines was acquired by Portugal
Portugal
Portugal , officially the Portuguese Republic is a country situated in southwestern Europe on the Iberian Peninsula. Portugal is the westernmost country of Europe, and is bordered by the Atlantic Ocean to the West and South and by Spain to the North and East. The Atlantic archipelagos of the...

 to replace the last submarines of the Albacora class
Albacora class submarine
The Albacora class is diesel-electric attack submarine developed for the Portuguese Navy based on the French Daphné class submarine....

, then being operated by the navy. Originally, HDW proposed the Type 209 submarine
Type 209 submarine
The Type 209 is a class of diesel-electric attack submarine developed exclusively for export in the late 1960s by Howaldtswerke-Deutsche Werft of Germany...

 (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.

Ships

Pennant
Pennant number
In the modern Royal Navy, and other navies of Europe and the Commonwealth, ships are identified by pennant numbers...

Name Laid down Commissioned
S167 NRP Tridente 2005 May 2010
S168 NRP Arpão 2005 December 2010

External links

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