Ok.. so, this is the submarine of Italian Federation Navy.
It' a larger version of U212 standard.
The endurance is 1,4 (circa) of U212, have 8 torpedo tubes and 12 weapons in storage (Black Shark torpedo and Scalp Naval cruise missile, and Manta [ratio 1:2] mine and "maiale" [SOF vehicle]).
There is a multi purpose locks (2 m of diameter) for SOF insertion and mini SOF vehicle (up two, like STIDD DPS), a Triple M mast with 3 UAV Aladin, and comm mast with communication integration system with communication buoy for under water communication.
The submarine can mount a seal delivery vehicle (2 crew, 6 SOF operato plus equipment) on the deck, for clandestine infiltration.
There aere eight units planned in the years 2004 - 2014.
The submarine base is Taranto, with forward naval support station in La Maddalena/Sicily, and Roda and Assab (two italian overseas territory), capable of recharge the hydrogen and oxygen for AIP propulsion system.