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Tridente-class submarine

Submarine class of the Portuguese Navy


Summary

Submarine class of the Portuguese Navy

FieldValue
section1{{Infobox ship/image
imageType 209PN submarine.svg
image_captionTridente-class profile
section2{{Infobox ship/image
imageChegada do submarino NRP Tridente à Base Naval do Alfeite.jpg
image_captionNRP Tridente at the Lisbon Naval Base
section3{{Infobox ship/class overview
buildersHDW
operators
class_before
total_ships_planned3
total_ships_completed2
total_ships_canceled1
section4{{Infobox ship/characteristics
typeAttack submarine
displacement*1,700 tons (surfaced)
length67.7 m
beam6.35 m
draught6.6 m
propulsionDiesel-electric, fuel cell AIP, low noise skew back propeller
speed*20 kn submerged
range12000 nmi at 8 kn
endurance45 days
test_depthsuperior to 300 m
capacity14
complement*7 officers
sensors*Kelvin Hughes KH-1007 (F) navigation radar
armament*(8) 533 mm torpedo tubes, (4) subHarpoon-capable
  • 2,020 tons (submerged)
  • 10 kn surfaced
  • 6 kn AIP system
  • 10 petty officers
  • 16 enlisted
  • Atlas Elektronik GmbH ISUS 90 combat management system
  • 12 × WASS Blackshark torpedo reloads The Tridente-class submarines, also designated as U 209PN, are diesel-electric submarines 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 previous submarines of the , 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 marine animals, thus breaking a tradition retracing back to 1913, when the first submarine entered service with the Portuguese Navy.

Ships

The Tridente-class submarines are diesel-electric boats with an advanced air-independent propulsion (AIP) system. Their propulsion is exclusively electric, with electric motors powered by batteries. These batteries may be charged while submerged by "fuel-cells" (inverse electrolysis) for which, this submarine carries a huge supply of liquid oxygen and hydrogen. Also, and solely as a second solution for recharging the batteries, this submarine carries two powerful diesel-electric generators (1,000 KVA) for use when surfaced, or at snorkel depth.

Submerged, from Lisbon, Portugal, submarines of the class may reach the Cape of Good Hope and return, in 15 days.

PennantNameLaid downCommissionedStatus
S1602005May 2010In service
S1612005December 2010In service
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