Virginia-class submarine USS Montana delivered to US Navy.

According to information published by the U.S. DoD on March 15, 2022, the Submarine Force’s newest attack submarine, the future USS Montana (SSN 794), was delivered to the U.S. Navy.
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Virginia class submarine USS Montana (Picture source: HII)

PCU Montana is the 21st Virginia Class submarine co-produced by General Dynamics Electric Boat (GDEB) and Huntington Ingalls Industries – Newport News Shipbuilding (HII-NNS) through a long-standing teaming agreement. Montana is the tenth Virginia Class delivered by HII-NNS and the third Block IV configured submarine.

Virginia Class Submarines are built to operate in the world's littoral and deep waters while conducting anti-submarine warfare; anti-surface ship warfare; strike warfare; special operations forces support; intelligence, surveillance, and reconnaissance; irregular warfare; and mine warfare missions.

Their inherent stealth, endurance, mobility, and firepower directly enable them to support five of the six maritime strategy core capabilities - sea control, power projection, forward presence, maritime security, and deterrence.

The Virginia-class submarine has a length of 114.8 m, a beam of 10.36 m, and a displacement of approximately 7,800 tons. The submarine can reach a top speed of 28 miles per hour (45 km/h). She has a crew of 132 people including 15 officers and 117 enlisted.

In contrast to a traditional bladed propeller, the Virginia class uses pump-jet propulsors by BAE Systems, originally developed for the Royal Navy's Swiftsure-class submarines. The propulsor significantly reduces the risks of cavitation and allows quieter operation.