• Name Number Launched Commissioned Decommissioned Homeport
    Castor A-21 5 November 1964 1 December 1966 10 December 2004 -
    Pollux A-22 5 November 1964 15 December 1966 20 January 2003 -
    Antares A-23 5 March 1973 21 November 1974   Puntales Naval Station (Cadiz)
    Rigel A-24 3 May 1973 21 November 1974 25 November 2013 -
    • 38.4 meters
    • 7.6 meters
    • 3.1 meters
    • 363 Tons
    • 1 motors diesel with a power of 800 HP
    • 1 pitch propellers and controllable,
    • 11.5 knots.
    • 40
    • Navigation radar: Kelvin Hughes
    • Depth sounder ATLAS DESO-20
    • Depth sounder ATLAS DESO-50