^ a b c 'Dreadnought-Class Nuclear-Powered Ballistic Missile Submarines'.'Building begins on new nuclear submarines'. On 29 December 2022, the 12 ballistic missile tubes of Dreadnought, along with 36 tubes for the others in her class arrived in the UK from the US. On 14 December 2022, the pressure hull of the submarine was completed. In May 2022, it was announced that construction had entered 'phase three' and that on completion, the submarine will leave the shipyard in Barrow-in-Furness to begin sea trials. In March 2021, it was announced that construction of the submarine had been delayed due to the impact of the COVID-19 pandemic. Much of the steel for the construction has been sourced from non-domestic sources. Other systems will include a new Thales Sonar 2076 system. In December 2021 it was announced that the submarine will feature Lockheed Martin navigation subsystems. Construction of Dreadnought began on 6 October 2016. The submarine was approved for order by the UK Parliament in July 2016. On completion she will become the UK's largest ever submarine. The lead boat of her class, she is being built in Barrow-in-Furness. HMS Dreadnought is a Royal Navy nuclear-powered Trident ballistic missile-armed submarine that is currently under construction. 8 to 12 Lockheed Trident II D5 SLBMs (carrying up to 8 warheads each).4 × 21 inch (533 mm) torpedo tubes for: Spearfish heavyweight torpedoes.Rolls-Royce PWR3 nuclear reactor, turbo-electric drive, pump-jetĢ0 knots (37 km/h 23 mph) surfaced 28 knots (52 km/h 32 mph) submerged Nuclear powered ballistic missile submarineġ7,200 t (16,900 long tons 19,000 short tons) For other ships with the same name, see HMS Dreadnought.

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