HMS Ajax (S125)
| History | |
|---|---|
 United Kingdom
| |
| Name: | HMS Ajax |
| Builder: | BAE Systems Submarine Solutions |
| Identification: | Pennant number: S125 |
| Status: | Confirmed, not yet ordered |
| Badge: |
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| General characteristics | |
| Class and type: | Astute-class submarine |
| Displacement: | 7,400 tonnes, submerged[1] |
| Length: | 97 m (318 ft 3 in) |
| Beam: | 11.3 m (37 ft 1 in) |
| Draught: | 10 m (32 ft 10 in) |
| Propulsion: | Rolls-Royce PWR 2 reactor, MTU 600 kilowatt diesel generators |
| Speed: | Up to 30 kn (56 km/h; 35 mph) submerged[1] |
| Range: | Only limited by food and maintenance requirements. |
| Complement: | 98 (capacity for 109) |
| Sensors and processing systems: |
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| Armament: |
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HMS Ajax (S125) (also known as "Astute-class Boat 7") is a proposed Astute-class nuclear-powered fleet submarine of the Royal Navy and will be the seventh in her class. She was to have been the ninth vessel of the Royal Navy to bear the name HMS Ajax, after the Greek hero Ajax; however while some previous official and unofficial sources state her name as "Ajax",[3] others state she is still yet to be officially named, referring to her simply as "Astute boat 7".[4]
The confirmation for the seventh and final Astute-class boat was given in the Strategic Defence and Security Review of October 2010, although an order has yet to be placed.[5] On 11 December 2012 the British government announced that long-lead items had been ordered for boats 6 and 7.[6]
Design
Propulsion system
A confusing press release suggested that Ajax would have the same PWR3 nuclear reactor as the Successor-class SSBNs[7] but in October 2012 it was confirmed that she would have a PWR2 like the rest of the Astute class.[8] Ajax's nuclear reactor will not need to be refuelled during the boat's 25 year service. Since the submarine can replenish her air supply and purify water underway and while submerged, she will be able to circumnavigate the planet without resurfacing. The submarine's main limitation will be from the three months supply of food carried for the 98 officers and ratings.
Weapons
Ajax will have provision for up-to 38 weapons in six 21-inch (533 mm) torpedo tubes:[9] The submarine will be capable of using Tomahawk Block IV land-attack missiles with a range of 1,240 miles (2,000 kilometres) and Spearfish heavyweight torpedoes.
References
- 1 2 "Astute Class". Royal Navy. Archived from the original on 5 June 2014. Retrieved 9 June 2014.
- ↑ "UK's most powerful submarine joins the Navy". Ministry of Defence. 27 August 2010. Retrieved 11 April 2011.
- ↑ "Astutle class". Retrieved 7 April 2016.
- ↑ "Astute class submarines". BAE Systems. Retrieved 20 March 2016.
- ↑ "Second Astute Class submarine officially named". UK Ministry of Defence. 22 December 2010. Retrieved 20 March 2016.
- ↑ "UK: BAE Systems Secures $ 1.92 Bln Submarine Deal". navaltoday.com. 11 December 2012. Retrieved 20 March 2016.
- ↑ "Royal Navy submarine contract awarded". UK Ministry of Defence. 18 June 2012. Retrieved 20 March 2016.
- ↑ "House of Commons - Written Answers Column 311W". Hansard. UK Parliament. 17 October 2012. Retrieved 20 March 2016.
- ↑ "Alien submarine breaks technical barriers". BBC News. 7 May 2007. Retrieved 20 March 2016.
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