S-161 Arpão

Country: Portugal

Class, [Type]: Tridente / Type U-209PN, [SSK].

Builder: HDW, Kiel, Germany.

Launch date: 19th June 2019.

Commission date: 22nd December 2010.

Displacement ( tons ): 1.842 surfaced, 2.020 submerged.

Dimensions ( metres ): 67,7 x 6,35 x 6,6

Main machinery: electric: 2 x MTU 12V 396 TB84 diesels ( 6,24MW ), 1 x electric engine Siemens Permasyn ( 2,85 MW ), 2 x AIP generators Siemens Sinavy.

Speed ( knots ): 10 surfaced/snorkel; 20 submerged; 6 AIP.

Range ( miles ): 12.000 at 8 knots.

Complement: 33 ( 7 officers ).

Missiles:  SSM: 6 x McDonnell Douglas Sub Harpoon ( capable ).

Torpedoes: 8 x 533mm. tubes. 12 x Alenia Marconi IF-21 Blackshark torpedoes.

Mines: Can lay mines.

Radar: Surface search: Kelvin Hughes KH 1007, I band.

Sonar: Atlas Elektronik CSU-90.

Callsign: CTSB ()

Comment: Maximum serviceable depth is +300m.