Italian submarine Enrico Toti (S506)

Italian submarine Enrico Toti (S506) was the first of a new class of Italian submarine (Toti-class), with the S506 Enrico Toti being laid down in 1965, launched in 1967, decommissioned in 1992 and preserved as a museum ship in Milan. The ship, and class, are named after the Italian Enrico Toti.

History
The submarine was built by Fincantieri in Monfalcone, between 1965 and 1967, and given to the Italian Navy in 1968; Soon after that three more identical units were added to what is called the "classe Toti". They are small submarines (so small that they were called “pocket sized submarines”), employed from the late 1960s until the end of the 90s. They were conceived to work inside the Mediterranean sea and have never had to face real war situations. They had two main tasks:
 * 1) patrol the Mediterranean sea with special attention to the Channel of Sicily during the Cold War; for this reason their main base was the Military Arsenal of Augusta (Syracuse);
 * 2) participate in NATO exercises with other submarines (US)

The Enrico Toti arrived at the Leonardo Da Vinci Museum in August 2005 with a trip in two steps:


 * 2001: From Augusta to the Cremona port, towed through the Adriatic sea and the Po (14 days)
 * 2005: From Cremona to Milan, on top of a specially built convoy, on a road trip lasting four nights.

Another Toti-class unit is on exhibition at the Arsenale in Venice, while the remaining two are still in Augusta and are scheduled for scrapping.

Technical data

 * Length: 46 m
 * Width: 4,75 m
 * Speed: 9.5 knots in surface, 14 knots underwater
 * Operational depth: 150 m
 * Test depth: 300m
 * Displacement: 530 tons in surface, 590 tons underwater
 * Engines: 1 electrical propeller engine (900 hp); two Fiat diesel engines (1040 hp) generating electrical power.
 * Armament: 4 launcher tubes for 533-mm torpedoes; wire-guided electrical torpedoes with auto-guided warhead.