Submarine 'NRP Tridente', pennant S160, of the Portuguese Navy, stopped off the Lisbon harbour to carry-out a crew exercise at the surface.

Main characteristics:
Class: Trident
MMSI: 263028000
Callsign: CTSA
LOA: 67,9m
Beam: 6,3m
Draught (at surface): 6,6m
GT (at surface): 1842 t
Max. speed (at surface): 10 kts
Year of Build: 2010
Builder: HDW (Kiel, Germany)
Flag: Portugal
Crew: 33