Engineering:NRP Arpão

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NRP Arpão in the Lisbon Naval Base

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General characteristics
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:
  • 2 generators AIP Siemens Sinavy (BZM-120); 240 KW
  • 2 diesel engines MTU 16V396 TB-94; 6,24 MW
  • 1 electric engine Siemens Permasyn; 2,85 MW
  • 1 axis
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:
  • 33 men:
  • 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
  • 12 × Alenia Marconi Systems IF-21 Blackshark torpedo reloads
  • 6 × Sub-Harpoon UGM 84 capable

NRP Arpão (S161) is a Tridente-class attack submarine of the Portuguese Navy.[1] It was commissioned in 2010.

Operational history

In April 2023, the submarine deployed to the South Atlantic, crossing the Equator for the first time.[2] During her deployment, she visited Cape Verde, Brazil, South Africa, Angola, and Morocco, reportedly making it the longest ever Portuguese submarine deployment.[3] In October 2023, the submarine was deployed to the Mediterranean to operate with NATO naval forces as part of "Operation Sea Guardian".[4] Between April 2024 and June 2024 NRP Arpao was again deployed with NATO naval forces, this time as part of "Operation Brilliant Shield", and became the first Portuguese submarine to navigate below Arctic ice.[5]

References

  1. ↑ Raquel Ramalho Lopes (1 May 2011). "Segundo submarino chegou a Portugal" (in Portuguese). RTP Notícias. RTP. http://www.rtp.pt/noticias/index.php?article=437753&tm=8&layout=121&visual=49. Retrieved 19 July 2012. 
  2. ↑ "Portuguese submarine crosses Equator for 1st time". 26 April 2023. https://www.theportugalnews.com/news/2023-04-26/portuguese-submarine-crosses-equator-for-1st-time/76987. 
  3. ↑ Hutson, Terry (9 June 2023). "Indian and Portuguese naval vessels visit South Africa". https://www.defenceweb.co.za/featured/indian-and-portuguese-naval-vessels-visit-south-africa/. 
  4. ↑ "NRP Arpao Joins NATO's Operation Sea Guardian". 3 October 2023. https://seawaves.com/nrp-arpao-joins-natos-operation-sea-guardian/. 
  5. ↑ "Portuguese attack submarine completes NATO North Atlantic deployment". https://mc.nato.int/media-centre/news/2024/portuguese-submarine-Arpao. 

Template:Tridente-class submarine




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