Japan will begin construction of one of the world’s largest and most powerful surface warships before the end of the year, according to reports from the Telegraph. This new class of warship, referred to as an Aegis System Equipped Vessel (ASEV), will be a significant addition to Japan’s maritime defense capabilities.
The ASEV will displace 12,000 tons, measure 620 feet in length, and have a beam of over 80 feet. It will feature more than 100 launch cells capable of accommodating a variety of munitions, including SM-6 missiles and possibly Tomahawk land-attack cruise missiles. The American-made Aegis fire-control system, renowned as the world’s most advanced targeting technology, will be a core component of the ship. This system integrates powerful radar and data links to guide missiles with precision, intercepting aircraft, missiles, drones, and even satellites in orbit.
The SM-6 missile, a versatile weapon, can be used for anti-air, anti-surface, ballistic missile defense, and sea-based terminal missions. It is also one of the few systems capable of defending against hypersonic missiles.
Construction of the first ASEV is expected to commence by the end of 2023, with completion anticipated around 2027-2028. The ASEVs will patrol the Sea of Japan to defend against incoming missiles but could also be used offensively if authorized. Once operational, these vessels will likely outperform any Chinese warships, making them the most powerful in the Indo-Pacific region and second globally only to America’s Ticonderoga-class cruisers.
The ASEVs represent a significant advancement in maritime defense technology for Japan. They will be powered by Rolls-Royce’s MT30 marine gas turbines, known for their high power density and efficiency. The MT30 is already in use in several advanced naval platforms, including Japan’s Mogami-class frigates and the British Royal Navy’s Queen Elizabeth-class aircraft carriers.
The ASEVs’ large hull design will allow for substantial fuel reserves and a high number of missiles, enabling prolonged missions and robust defense capabilities. The ship’s Aegis system, combined with the latest radar technology, will provide unmatched missile defense capabilities, crucial for countering threats from North Korea and China.
Japan’s decision to build these powerful warships comes amid increasing regional tensions and the need for advanced defense systems. The Japanese government had initially planned to install Aegis systems in ground facilities but pivoted to the ASEV project due to local opposition and strategic considerations.
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