FACTOID # 6: Michigan is ranked 22nd in land area, but since 41.27% of the state is composed of water, it jumps to 11th place in total area.
 
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Encyclopedia > HMS Vulcan

The Rolls-Royce pressurised water reactor (PWR) series has powered British nuclear submarines since the Valiant class, commissioned in 1966. The first British nuclear submarine, HMS Dreadnought, was powered by a Westinghouse S5W reactor. Rolls-Royce plc (also known as Rolls-Royce Aero Engines) is the second-largest aircraft engine maker in the world, behind General Electrics GE Aircraft Engines division. ... A pressurized water reactor (PWR) is a type of nuclear power reactor that uses ordinary (light) water for both coolant and for neutron moderator. ... The Valiant-class were the first fully British nuclear fleet submarine, as the first nuclear submarine, HMS Dreadnought, actually used an American nuclear reactor. ... The fourth HMS Dreadnought (S101) was Britains first nuclear-powered submarine, built by Vickers of Barrow-in-Furness. ...

Contents


PWR1

Enlarge
HMS Warspite, the third British nuclear submarine, the second powered by the Rolls-Royce PWR1

The first British naval reactor, the PWR1, based on a Westinghouse design (but built entirely by Rolls-Royce) went critical in 1965. Technology transfers eventually made Rolls-Royce entirely self-sufficent in reactor design. Download high resolution version (1074x855, 50 KB)HMS Warspite (Valiant-class submarine). ... Download high resolution version (1074x855, 50 KB)HMS Warspite (Valiant-class submarine). ... Westinghouse logo (designed by Paul Rand) The Westinghouse Electric Company, headquartered in Monroeville, Pennsylvania, is an organization founded by George Westinghouse in 1886. ...


Rolls-Royce at Derby became the centre for design and manufacture of the reactors. The Vulcan Naval Reactor Test Establishment, HMS Vulcan at Dounreay, tested each reactor prior to its installation in nuclear submarines. Derby (pronounced dar-bee ) is a city in the East Midlands of England. ... UKAEA Dounreay Dounreay Nuclear Power Station operated by the United Kingdom Atomic Energy Authority (UKAEA) on the North coast of Caithness in Scotland, was the worlds first electricity-producing Fast Breeder Reactor. ...


PWR1 submarines

The Valiant-class were the first fully British nuclear fleet submarine, as the first nuclear submarine, HMS Dreadnought, actually used an American nuclear reactor. ... The Resolution class submarines were the first British strategic ballistic missile submarines, carrying the Polaris missile. ... The three Churchill-class submarines were nuclear powered hunter-killer submarines which served with the Royal Navy from the 1970s until the early 1990s. ... The Royal Navys Swiftsure-class of nuclear fleet submarines (SSNs) is the older of the two classes of attack submarine in service with the RN. It originally contained six boats, but HMS Swiftsure was decommissioned in 1992 due to damage suffered to the pressure hull during trials. ... Trafalgar class submarine on surface The Trafalgar class submarines were, until the introduction of the Astute class, the Royal Navys most advanced nuclear fleet submarines (SSNs). ...

PWR2

Vanguard class SSBN
Vanguard class SSBN

PWR2 is the latest nuclear reactor designed to power the Royal Navy's submarines. The PWR2 was developed for the Vanguard class Trident missile submarines and is a development of the PWR1. The first PWR2 reactor was completed in 1985 with testing beginning in August 1987 at the Ministry of Defence's naval test reactor site at Dounreay, Scotland. Vanguard Class Submarine Source: apparently from [1]. The same image (left-right mirrored and larger) also exists at [2]. File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Vanguard Class Submarine Source: apparently from [1]. The same image (left-right mirrored and larger) also exists at [2]. File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Nuclear power station at Leibstadt, Switzerland. ... The Royal Navy of the United Kingdom is the senior service of the armed services, being the oldest of its three branches. ... Vanguard Class Submarine Trident missile launch in the United States The Royal Navys Vanguard class of nuclear ballistic missile submarines (SSBNs), each armed with 16 Trident II SLBMs, includes four boats: Vanguard (S28), Victorious (S29), Vigilant (S30), and Vengeance (S31), all built by Vickers Shipbuilding and Engineering Ltd, now... Ohio-class submarine launches Trident ICBMs (US Navy graphic) The Trident missile is an intercontinental ballistic missile (ICBM) which is armed with nuclear warheads and is launched from submarines (SSBNs), making it a SLBM. The Trident was built in two variants: the I (C4) UGM-93A and II (D5) UGM... This articles deals with the British ministry, see defence minister for other countries. ... UKAEA Dounreay Dounreay Nuclear Power Station operated by the United Kingdom Atomic Energy Authority (UKAEA) on the North coast of Caithness in Scotland, was the worlds first electricity-producing Fast Breeder Reactor. ... Scotland (Alba in Scottish Gaelic) is a country in northwest Europe and a constituent nation of the United Kingdom. ...


The latest design of the PWR2 is the "Core H", which removes the need for refuelling, allowing a submarine to avoid two reactor refits in its service life. HMS Vanguard will be fitted with the new core during its refit, followed by its three sister ships. The Astute class submarines will have this full-life core installed. As they were developed for SSBNs, the reactors are considerably larger than those of current British SSNs. The diameter of Astute class hulls have therefore been increased to accommodate the PWR2.


Rolls-Royce claim that the Core H PWR2 can deliver six times the power of the original PWR1 and last four times as long.


PWR2 submarines

Vanguard Class Submarine Trident missile launch in the United States The Royal Navys Vanguard class of nuclear ballistic missile submarines (SSBNs), each armed with 16 Trident II SLBMs, includes four boats: Vanguard (S28), Victorious (S29), Vigilant (S30), and Vengeance (S31), all built by Vickers Shipbuilding and Engineering Ltd, now... BAE SYSTEMS Artist Impression When completed, the Astute class will comprise the largest nuclear-powered attack submarines of the Royal Navy. ...

External links

  • RR Nuclear

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