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ANDREA DORIA helicopter cruisers (1964)


Andrea Doria 1979


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


Displacement full, t


Length, m

144.0 pp 149.3 oa

Breadth, m


Draught, m


No of shafts



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.


Max speed, kts


Fuel, t

oil 1100

Endurance, nm(kts)5000(17)

1 x 2 Terrier SAM (40 RIM-2), 8 x 1 - 76/62 MMK, 2 x 3 - 324 TT, 4 helicopters (AB-212)

Electronic equipmentSPS-12, SPS-39A, SPQ-2, 2x SPG-55, 4x RTN-10X radars, SQS-39 sonar, SADOC CCS


Standard scale images

<i>Andrea Doria </i>1978
Andrea Doria 1978
<i>Caio Duilio </i>1990
Caio Duilio 1990
<i>Andrea Doria </i>1965
Andrea Doria 1965


<i>Andrea Doria </i>1979
Andrea Doria 1979
<i>Caio Duilio</i> 1980
Caio Duilio 1980

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.


(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.