Visby class frigates, with outstanding stealth performance, meet Sweden’s realistic needs


It is understood that the Swedish Navy commissioned the Visby class stealth frigate in 2005. The frigate is built based on the advantages of being small and refined. It can undertake a variety of tasks such as surface warfare and anti-submarine warfare, with strong endurance and stealth to meet the actual needs of the country.Stealth is a significant feature of the Weisby class, not only in terms of radar, but also in details such as infrared thermal signals, so as to effectively protect itself in complex geomorphic environments.The visby-class stealth frigate is 73 meters long and 10.4 meters wide, and has a maximum displacement of more than 600 meters.It is designed with a modular structure and uses carbon fiber composite materials that are more crash-resistant to ensure stealth.In addition, in order to highlight the stealth, the ship also painted infrared scattering paint, designed a special shockproof sound-absorbing base.Because of the simplicity of the design, there is little equipment on the deck and so on, and systems such as weapons systems and electronic controls are kept in-house.In terms of power, the ship relies on diesel engines and other system devices to maintain operation, which not only meets the economy of daily cruise, but also meets the urgent tactical needs.It has a daily speed of 15 knots and can reach a maximum speed of 35 knots once the power system is switched.To enhance its anti-submarine capability, the developer has installed an integrated sonar system with a depth of 1 km for the Visby class.At the same time, also equipped with a limited active and passive sonar guided anti-submarine torpedo launch tube.In terms of air defense performance, the ship has the MK3 57mm gun, which can carry programmable fuze shells made in Sweden.It is reported that the shell is controlled by automation, the maximum strike distance of 17 kilometers, is mainly used to attack the opponent’s aircraft.In the anti-ship field, it has installed the RBS15MK anti-ship missile launch system, which can hit targets within a range of 200 km at Mach 0.8 per hour.It is also understood that the ship’s operational command system consists of a combat management system and an integrated communication system.Of which the former is the most critical part.In the target detection, it has a sea Giraffe AMBC-3D and other radars.In addition, Visby is equipped with the CS-3701 electronic Warfare Support system, support system, etc., for target positioning and other tasks.As for mine clearance, the Visby class is equipped with remote-controlled underwater vehicles, which are composed of sonar, etc. for detection and other tasks.

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