Some more facts and figures of the world's most advanced warships in the world's second-most powerful navy -
They are equipped with Sampson rader - the world's most advanced radar.
Displacement: c. 7,350 tonnes (deep delivery), c. 5800 tonnes (light delivery)
Max Beam: 21.2m
Speed: 27 knots+, 18 Knots (Cruise)
Range: 7000 nautical miles at 18 knots
Complement: approx. 190, space for 235, providing significantly better accommodation standards than before
Equipment selected includes:
The Principal Anti Air Missile System (PAAMS), with the BAE SYSTEMS SAMPSON Multi-Functional Radar (MFR) (for surveillance and fire control) and the Signaal/Marconi S1850M Long Range Radar (LRR) for air/surface search.
SYLVER launcher and combination of up to 48 Aster15 and Aster30 missiles.
Other weapons systems include: STINGRAY Torpedoes - helicopter-launched; 4.5" Mk 8 Medium Calibre Gun system; Surface Ship Torpedo Defence system.
Helicopter: 1 Westland Lynx HMA 3/8 or 1 Merlin EH101 HAS 1
The Type 45 class will be the largest and most powerful air defence destroyers ever operated by the Royal Navy and the largest general purpose surface warships (excluding aircraft carriers and amphibious ships) to join the fleet since World War Two cruisers.
The projected deep load displacement of the Type 45, at around 7,200 tonnes, will also exceed that of any other general purpose surface combatant, again excluding aircraft carriers and amphibious ships, built for the Royal Navy since the Tiger class cruisers of the 1941 programme.
When the Type 45 enters service later this decade it will provide the fleet with an air defence capability that is several orders of magnitude greater than that provided by the existing force of Type 42 destroyers.
The main armament of the class will be the sophisticated and lethal Principal Anti Air Missile System (PAAMS), which is being developed and procured jointly with France and Italy. PAAMS will equip the Type 45 to defend itself and other ships in company from attack by existing and future anti-ship missiles of all types. The Type 45 will also be able to operate close inshore and use PAAMS to give air cover to British Forces engaged in the land battle. The system is designed to defend against supersonic, stealthy, highly manoeuvrable missiles that could use sea-skimming or steep-diving flight profiles approaching in salvoes, simultaneously from several directions.
PAAMS is capable of controlling several missiles in the air at any one time, each one of which could engage individual targets, preventing attackers from swamping the fleet's air defences. MOD oversight of the three-nation PAAMS project is provided by Type 45 Anti Air Warfare Destroyer project team members working at the joint PAAMS Project Office in Paris, from where the programme is administered.
The Type 45 will succeed the Royal Navy's long-serving Type 42 destroyers, which were designed in the 1960s and came into service between the mid 1970s and mid 1980s. The Type 42's main armament is the powerful Seadart area defence missile system, which has served the Royal Navy well on operations from the Falklands conflict to the Gulf War, but which now needs replacement. DPA Type 45 AAW Destroyer project team leader Brigadier Keith Prentice said: "Seadart was designed in the 1960s to defend ships against aircraft, though it has been modified to deal successfully with newer threats. "A new type of system is needed and PAAMS is a fresh design with the prime role of defending ships against salvo attacks by the potent anti-ship missiles that we expect to come into service in the coming decades. "The Type 45 is effectively a couple of generations ahead of the Type 42. The Sampson radar, the associated command and control system, long-range radar, vertical launch system and the very fast and agile Aster missiles combine to create a system several orders of magnitude more powerful and effective than Seadart."
A Type 45 being built -