The Vanguard class boats, termed ‘bombers’ in Navy parlance (or ‘boomers’ in the U.S. Navy), carry the country’s nuclear deterrence. At least one Royal Navy bomber has been a sea every ...

The Royal Navy’s four Vanguard-class Trident ballistic missile-armed submarines have been in service since 1993 as the key component of Britain’s Independent Nuclear Deterrent (IND) policy ...

Able Seaman Smith and Able Seaman Davies in their bunks on the HMS Vigilant submarine on January 20 in Rhu, Scotland. HMS Vigilant is one of the UK's fleet of four Vanguard-class nuclear-powered ...

The boats are considered cramped, and crews have endured some atmospheric issues (excessive temperatures) inside the subs. Problems with reactor design (borrowed from the Vanguard SSBNs) led to a ...

The Vanguard-class submarine reportedly spent 204 days under the waves. ... HMS Vanguard’s sister boat, HMS Vengeance, reportedly returned home last year after 201 days at sea.