The Royal Navy's newest attack submarine, Astute, was launched last week (June 8, 2007) by HRH The Duchess of Cornwall at the BAE Systems shipyard in Barrow in Furness, Cumbria. Astute is the first nuclear attack submarine to be launched in the UK for almost a decade. Far bigger and more potent than the current class submarines, the 7,400 tons, 100 meter long sub weighs about 2,000 more than the current Trafalgar class submarines. Astute is expected to begin sea trials in March 2008, and is expected to enter service with the Royal Navy in 2009. It will be based in Scotland. Astute is the first vessel of four in the Astute class. The other three are AMBUSH, ARTFUL and AUDACIOUS. Read more news on DEFENSE UPDATE.