 In 1937, it was repurchased by the Admiralty and reopened as the Royal Naval Torpedo Factory, which operated into the 1950s.In the 1960s, the site is said to have been involved in Chevaline, a secret project to improve Britain's Polaris nuclear warheads.The facility was closed in 1969, and in 1971, the Argyll Works was purchased by electronics company Plessey.