Italian destroyer Caio Duilio

	Caio Duilio on 10 June 2010
History
Italy
Name	Caio Duilio
Namesake	Gaius Duilius
Ordered	27 October 2000
Builder	Horizon Sas and Fincantieri. Riva Trigoso and Muggiano shipyards.
Laid down	19 September 2003
Launched	23 October 2007
Commissioned	3 April 2009
In service	22 September 2011
Homeport	La Spezia
Identification	MMSI number: 247039999; Hull number: D 554; ITU: ;
Motto	Nomen Numen
Status	Active
General characteristics
Class & type	Orizzonte-class destroyer
Displacement	7,050 t (6,940 long tons) ; 7,770 t (7,650 long tons) full load;
Length	152.9 m (501 ft 8 in)
Beam	20.3 m (66 ft 7 in)
Draft	7.6 m (24 ft 11 in)
Installed power	4 diesel generators Isotta Fraschini VL1716T2ME (1,680 kW each); 2 power stations;
Propulsion	CODOG:; 2 GE/Avio LM2500 gas turbine engines 20.5 MW each; 2 SEMT Pielstick 12 PA6 STC diesel engines 4.32 MW each; 2 Variable pitch propellers; 1 Bow thruster;
Speed	29 knots (54 km/h; 33 mph) (gas turbine engines); 18 knots (33 km/h; 21 mph) (diesel engines);
Range	7,000 nmi (13,000 km; 8,100 mi) at 18 knots; 3,500 nmi (6,500 km; 4,000 mi) at 24 kn;
Endurance	45 days
Capacity	Accommodations for 255
Complement	24 officers; 87 petty officers; 82 sailors;
Crew	193 + 37 Staff including Boarding/Security and Flight teams
Sensors &; processing systems	Surface search radar in E/F band Selex RAN 30X/I (RASS); Multi-functional 3D phased array radar in G band Selex SPY-790 (EMPAR) (Principal sensor of PAAMS); Long Range 3D Radar in D band Thales/Selex S1850M; Secondary Surveillance Radar Selex SIR R/S; Navigation and Helo decking radar in I band Selex SPN 753(V)4 (NAVR); 2 Multi-Sensor target indiction system NA 25X (Radar and electro-optical sensor RTN-30X); Bispectral IR detection and tracking system Sagem Vampir MB (IRAS); ESM System SLQ-750 made-up by a WB (Wideband) receiver and 2 HSFA (Superheterodyne) receivers; Medium frequency hull sonar Thales UMS 4110CL; Electronic Warfare (Nettuno 4100):; 2 Radar Jammers; 2 Oto Melara SCLAR-H decoys launcher system for chaff and flares; Anti-torpedo system SLAT:; Low frequency towed array sonar; 2 acoustic decoy launchers;
Armament	Artillery:; 3 Oto Melara 76/62 mm Davide/Strales Super-Rapid guns (ILDS, updated to Strales version since 2017); 2 Oto Melara 25/80 with Oerlikon KBA 25mm guns; 2 SITEP LRAD MASS CS-424 acoustic guns (since 2017); Torpedoes:; 2 EuroTorp torpedo tubes B515/1 with semi-automatic handling system for MU 90 lightweight torpedoes; Missiles:; PAAMS; (Principal Anti-Air Missile System) 6 DCNS Vertical Launch System Sylver A50 modules with 48 cells for MBDA short range Aster 15 or medium range Aster 30 missiles + fitted for 16 cells additional; 8 S/S Teseo Mk2/A missile launchers;
Aircraft carried	1 AgustaWestland AW101; or; 1 NHIndustries NH90; armed with MU90 torpedoes or Marte Mk2/S A/S missiles;

Caio Duilio is a destroyer of the Italian Navy. She and her sister Italian destroyer Andrea Doria form the Andrea Doria class; in turn these two ships, and the French vessels Forbin and Chevalier Paul, belong to the Horizon class. Caio Duilio is marked by hull number D 554 according to NATO classification.

History
Caio Duilio on 10 June 2010
Italy
Name	Caio Duilio
Namesake	Gaius Duilius
Ordered	27 October 2000
Builder	Horizon Sas and Fincantieri. Riva Trigoso and Muggiano shipyards.
Laid down	19 September 2003
Launched	23 October 2007
Commissioned	3 April 2009
In service	22 September 2011
Homeport	La Spezia
Identification	MMSI number: 247039999 Hull number: D 554 ITU:
Motto	Nomen Numen
Status	Active
General characteristics
Class & type	Orizzonte-class destroyer
Displacement	7,050 t (6,940 long tons) 7,770 t (7,650 long tons) full load
Length	152.9 m (501 ft 8 in)
Beam	20.3 m (66 ft 7 in)
Draft	7.6 m (24 ft 11 in)
Installed power	4 diesel generators Isotta Fraschini VL1716T2ME (1,680 kW each) 2 power stations
Propulsion	CODOG: 2 GE/Avio LM2500 gas turbine engines 20.5 MW each 2 SEMT Pielstick 12 PA6 STC diesel engines 4.32 MW each 2 Variable pitch propellers 1 Bow thruster
Speed	29 knots (54 km/h; 33 mph) (gas turbine engines) 18 knots (33 km/h; 21 mph) (diesel engines)
Range	7,000 nmi (13,000 km; 8,100 mi) at 18 knots 3,500 nmi (6,500 km; 4,000 mi) at 24 kn
Endurance	45 days
Capacity	Accommodations for 255
Complement	24 officers 87 petty officers 82 sailors
Crew	193 + 37 Staff including Boarding/Security and Flight teams
Sensors & processing systems	Surface search radar in E/F band Selex RAN 30X/I (RASS) Multi-functional 3D phased array radar in G band Selex SPY-790 (EMPAR) (Principal sensor of PAAMS) Long Range 3D Radar in D band Thales/Selex S1850M Secondary Surveillance Radar Selex SIR R/S Navigation and Helo decking radar in I band Selex SPN 753(V)4 (NAVR) 2 Multi-Sensor target indiction system NA 25X (Radar and electro-optical sensor RTN-30X) Bispectral IR detection and tracking system Sagem Vampir MB (IRAS) ESM System SLQ-750 made-up by a WB (Wideband) receiver and 2 HSFA (Superheterodyne) receivers Medium frequency hull sonar Thales UMS 4110CL Electronic Warfare (Nettuno 4100): 2 Radar Jammers 2 Oto Melara SCLAR-H decoys launcher system for chaff and flares Anti-torpedo system SLAT: Low frequency towed array sonar 2 acoustic decoy launchers
Armament	Artillery: 3 Oto Melara 76/62 mm Davide/Strales Super-Rapid guns (ILDS, updated to Strales version since 2017) 2 Oto Melara 25/80 with Oerlikon KBA 25mm guns 2 SITEP LRAD MASS CS-424 acoustic guns (since 2017) Torpedoes: 2 EuroTorp torpedo tubes B515/1 with semi-automatic handling system for MU 90 lightweight torpedoes Missiles: PAAMS (Principal Anti-Air Missile System) 6 DCNS Vertical Launch System Sylver A50 modules with 48 cells for MBDA short range Aster 15 or medium range Aster 30 missiles + fitted for 16 cells additional 8 S/S Teseo Mk2/A missile launchers
Aircraft carried	1 AgustaWestland AW101 or 1 NHIndustries NH90 armed with MU90 torpedoes or Marte Mk2/S A/S missiles