fighting ships of the world



ISAAC PERAL submarines

Isaac Peral

Name No Builder Laid down Launched Comm Fate
Isaac Peral S81 Navantia, Cartagena 13/12/2007 2018 2020 building (2017)
Narciso Monturiol S82 Navantia, Cartagena 19/2/2009 2019 2021 building (2017)
Cosme García S83 Navantia, Cartagena 21/1/2010 2020 2022 building (2017)
Mateo García de los Reyes S84 Navantia, Cartagena 2011 2021 2023 building (2017)


Displacement standard, t


Displacement normal, t

2695 / 2965

Length, m


Breadth, m


Draught, m


No of shafts



3 MTU 16V396 SE84L diesel-generators, 1 AC electric motor

Power, h. p.


Max speed, kn

12 / 20

Fuel, t

diesel oil

Endurance, nm(kts) 7500(6) / 330(4) / 2000(4) (AIP)


6 - 533 TT (bow, 18, including Sub-Harpoon SSM (presumably 4 UGM-84), capacity for Tomahawk Block IV UGM-109 CruM)

Sensors Aries radar, EDO, Socilsub, Solarsub DTAS sonars, Pegaso ECM suite, 20x Kestros decoy launchers, ICSC CCS
Complement 40
Diving depth operational, m 300 - 350


Ship project history: In 2003 the Spanish government formally authorized the construction of all four submarines of S80 class. These are the first Spanish boats to be fitted with air-independent propulsion (AIP) and each boat will carry a 300 kw UTC Polymer Electrolytic Membrane (also called Proton Exchange Membrane) fuel cell using reformed ethanol and pure oxygen to meet the requirement for 15 days of submerged AIP operations at 4 kts. Design includes space for 8 commandos and a small lockout chamber for special forces and missions. Expected to be fitted with a Socilsub sonar suite that is based on the French DSUV-22 system and would include a cylindrical bow transducer array, an active array, a passive ranging array, an acoustic intercept system, and passive flank arrays. Two additional units may be ordered in the future for a planned total of six units.

Modernizations: None

Naval service: None

© Ivan Gogin, 2017