NAVYPEDIA

Photo

Andrea Doria 1979

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
Andrea Doria	C553		CNR, Riva Trigoso	11.5.1958	27.2.1963	23.2.1964	stricken 9.1992
Caio Duilio	C554		Navalmeccanica, Castellammare di Stabia	16.5.1958	22.12.1962	30.11.1964	stricken 7.1991

Technical data

Displacement standard, t	5000
Displacement full, t	6500
Length, m	144.0 pp 149.3 oa
Breadth, m	17.3
Draught, m	5.00
No of shafts	2
Machinery	C553: 2 sets CNR geared steam turbines, 4 Foster Wheeler boilers C554: 2 sets Ansaldo geared steam turbines, 4 Foster Wheeler boilers
Power, h. p.	60000
Max speed, kts	30
Fuel, t	oil 1100
Endurance, nm(kts)	5000(17)
Armament	1 x 2 Terrier SAM (40 RIM-2), 8 x 1 - 76/62 MMK, 2 x 3 - 324 TT, 4 helicopters (AB-212)
Electronic equipment	SPS-12, SPS-39A, SPQ-2, 2x SPG-55, 4x RTN-10X radars, SQS-39 sonar, SADOC CCS
Complement	485

Standard scale images

Graphics

Project history

Both ships were ordered under the 1957-58 new construction programme. They were designed to carry Terrier SAM and three Sea King ASW helicopters to provide long range AA and ASW protection to task groups and convoys. An enlarged version of the lmpavido class destroyer design was used, with a considerably increased beam to allow a hangar and a 30x16m flight deck to be worked in aft. In practice they proved to be too small to operate Sea Kings, so they carried four smaller ASW helicopters instead. The flight deck was cantilevered out at the extreme stern to provide more operating space.

This class was to have been armed with the SMP 3 76mm/62 gun used in the Albatros class. Due to its failure, the new OTO-Melara weapon was substituted. These guns were adopted because the Italian Navy decided in 1958 that nothing short of a 76mm weapon would be adequate for point defence against aircraft. These were the first Italian warships with automated combat data systems (SADOC, equivalent to the contemporary US NTDS). The official sketch published in 1959 showed a lattice foremast like that of the newly-modernized Garibaldi, with SPS-39 at its top and SPS-6 or SPS-12 on a platform further down; there was no mainmast. In fact they were completed with two pole masts, the foremast carrying SPS-12 and the mainmast SPS-39A. The gun fire control system was new Italian-made NA-9 Orion with RTN-10X radars.

A third unit, to have been named Enrico Dandolo, was deferred; the larger Vittorio Veneto was built instead.

Modernizations

(1976-1978), Andrea Doria: - 1 x 2 Terrier SAM, SPS-12, SPS-39A, 2x SPG-55A radars, SQS-39 sonar; + 1 x 2 Standard SM-1ER SAM (40 RIM-67A), SPS-40, SPS-52, 2x SPG-55C radars, SQS-23F sonar

1980, Andrea Doria: - SPS-52 radar; + RAN-3L (SPS-768) radar

(1979-1980), Caio Duilio: - 1 x 2 Terrier SAM, 2 x 1 - 76/62, SPS-12, 1x RTN-10X, 2x SPG-55A radars; + 1 x 2 Standard SM-1ER SAM (40 RIM-67A), RAN-3L (SPS-768), 2x SPG-55C radars, only 2 helicopters were carried, classrooms for cadets replaced former hangar

1980s, both: + SPR-4, SLQ-D ECM suites, 2 SCLAR decoy launchers

Naval service

 Caio Duilio became TS in 1980.