Cassiopea-class patrol vessel

Patrol ship Spica (P 403)
Class overview
Name	Cassiopea
Builders	Fincantieri – Muggiano
Operators	Italian Navy
Completed	4
Active	Cassiopea (P 401) Libra (P 402) Spica (P 403) Vega (P 404)
General characteristics [1]
Type	Patrol vessel
Displacement	1.130 t (1.112 long tons) standard 1.500 t (1.476 long tons) full load
Length	79.80 m (261 ft 10 in) oa 71.50 m (234 ft 7 in) pp
Beam	11.80 m (38 ft 9 in)
Draught	3.60 m (11 ft 10 in)
Propulsion	- 2 x shafts - 2 x diesel engines Grandi Motori Trieste BL-230.16 propulsion diesels 5.84 kW (7.83 bhp) - 3 x diesel engine generators Isotta Fraschini ID 36SS6V - 1 x diesel engine generator Isotta Fraschini VM-V6130T for emergency
Speed	21 knots (39 km/h; 24 mph) maximum 20 knots (37 km/h; 23 mph) continuous
Range	3,300 nmi (6,100 km; 3,800 mi) at 17 knots (31 km/h; 20 mph)
Endurance	35 days
Crew	6 officers, 54 enlisted
Sensors and processing systems	1 × SMA SPN-748(V)2 Navigation radar 1 × AESN SPS-702(v)2 surface search radar 1 × AESN SPG-70 (RTN 10X) fire control radar 1 × GEM Elettronica Gemini-DB navigation radar
Electronic warfare & decoys	Elint equipment
Armament	1 × OTO Melara 76/62mm Allargato gun 2 × OTO Melara 25/80 guns with Oerlikon KBA 25 mm [2] 2 × 7,62 mm MG 42/59 machine guns
Aircraft carried	1 Agusta-Bell AB-212 ASW helicopter
Aviation facilities	Hangar and flight deck

The Cassiopea class is a series of four heavy patrol boats of the Italian Navy. They were built in the late 1980s on civilian standards. They are designed for patrol in safe areas.