[2][3] Vengeance was built at Barrow-in-Furness by Vickers Shipbuilding and Engineering Ltd, later BAE Systems Submarine Solutions, was launched in September 1998, and commissioned in November 1999.
[4] Before she was commissioned, the British Government stated that once the Vanguard submarines became fully operational, they would only carry 200 warheads.
[5] On 31 March 2011, while on a training exercise, Vengeance suffered a blockage in her propulsor causing a reduction in propulsion.
[6] In 2012, Vengeance started a 40-month refit at HMNB Devonport near Plymouth[7] which refueled her reactor and renewed her machinery and electronics.
[9] Vengeance then went through trials from January 2016 to June 2016 and fired an unarmed D5 missile during her Demonstration and Shakedown Operation (DASO) which allowed her to return to the fleet.