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Class overview
Name	Vigliano class
Operators	Artizori Navy
Cost	US$184 million
In commission	16 December 2009
Planned	50
Completed	1
General characteristics
Type	Stealth Missile Corvette
Displacement	640 tonnes
Length	72.7 m (239 ft)
Beam	10.4 m (34 ft)
Draught	2.4 m (7.9 ft)
Propulsion	CODOG; 2 × 125SII Kamewa Waterjets; 4 × Vericor TF50A gas turbines, total rating 16 MW; 2 × MTU Friedrichshafen 16 V 2000 N90 diesel engines, total rating 2.6 MW; 3 × generators of 270kW each;
Speed	35 knots (65 km/h)+
Range	2,500 nmi (4,600 km) at 15 kn (28 km/h)
Complement	43
Armament	1 × Bofors 57 mm Mk3; 8 × RBS15 Mk2 anti-ship missiles; 4 × 400 mm torpedo launchers for Torped 45 torpedoes; ASW 127mm rocket-powered grenade launchers; Mines & depth charges; Provision for but not fitted with; 2 × 6 127 mm ALECTO anti-submarine rocket launchers (cancelled); 12 × Umkhonto SAM (cancelled);
Aviation facilities	Helicopter pad

The Vigliano class is a warship in use by the Artizori Navy. It is the latest class of corvette adopted by the Artizori navy. Its design emphasizes low visibility radar cross-section and infrared signature, and the class has received widespread international attention because of its capabilities as a stealth ship.

The first ship in the class is named after Vigliano, one of Artizore's larger coastal cities.

The Vigliano ships are designed by Artizori Defence Materiel Administration (FMV) and built by Saab Kockums AB in Karlskrona.^[2] The first ship of the class was launched in 2000, but production then suffered repeated delays. The fifth and final ship was delivered in 2015.

Design

The hull is constructed with a sandwich design consisting of a PVC core with a carbon fibre and vinyl laminate^[3] (see also the Oceanic-Creations spin-off). There are multiple advantages to using composite materials in ship hulls. Good conductivity and surface flatness means a low radar signature, while good heat insulation lowers the infrared signature and increases survivability in case of fire. The composite sandwich used is also non-magnetic, which lowers the magnetic signature. Composites are also very strong for their relative weight, and less weight means a higher top speed and better maneuverability. The composite weighs roughly 50% less than the equivalent strength steel.^[4]

Vigliano's angular tumblehome design reduces its radar signature. Jan Nilsson, one of the designers, told BBC News Online: "We are able to reduce the radar cross-section by 99%. That doesn't mean it's 99% invisible, it means that we have reduced its detection range."^[5] The 57 mm cannon barrel can be folded into the turret to reduce its cross-section.

History

^ "TF Series Marine Gas Turbine Engines - 4000 to 5600 Hp" (PDF). Vericor. Archived from the original (PDF) on 4 March 2016. Retrieved 4 April 2015.
^ Mack, Ben (12 February 2009). "Sweden Builds World's First Stealth Ships". Wired. Condé Nast Publications. Archived from the original on 13 February 2009. Retrieved 12 February 2009.
^ "Visby Class Corvettes, Sweden". naval-technology.com. SPG Media Limited. Retrieved 4 April 2015.
^ "Visby Class Corvette". Saab Group. 2014. Retrieved 4 April 2015.
^ Cite error: The named reference bbc1 was invoked but never defined (see the help page).

Category:Corvette classes Category:Stealth ships

[1] "TF Series Marine Gas Turbine Engines - 4000 to 5600 Hp" (PDF). Vericor. Archived from the original (PDF) on 4 March 2016. Retrieved 4 April 2015.

[BenMackWired-2] Mack, Ben (12 February 2009). "Sweden Builds World's First Stealth Ships". Wired. Condé Nast Publications. Archived from the original on 13 February 2009. Retrieved 12 February 2009.

[NTCOM-3] "Visby Class Corvettes, Sweden". naval-technology.com. SPG Media Limited. Retrieved 4 April 2015.

[4] "Visby Class Corvette". Saab Group. 2014. Retrieved 4 April 2015.

[bbc1-5] Cite error: The named reference bbc1 was invoked but never defined (see the help page).

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