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The Batch 3 Type 22 frigate

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Safety net Sea King ASW helicopter Folding main rotors and tail pylon Flight deck and landing grid Propeller guard Starboard rudder astern of starboard propeller Propeller shaft and bearing housings Accommodation ladder stowage Flight deck lighting Petrol store (inflatable boats) After six-round Seawolf missile launcher Hangar After life raft stowage Boat davit Rigid inflatable boat, port and starboard After Seawolf tracker Antenna pantograph UHF antenna After auxiliary machinery room diesel exhaust shroud Mainmast After main engine room intake filter housing (downtakes) After mooring bollards Sick bay After auxiliary machinery room (AAMR) After stabiliser Propeller shaft After main engine room Twin Rolls-Royce Tyne gas turbines BMARC 20mm cannon Tyne gas turbine exhaust ducts (uptakes) Spey gas turbine exhaust ducts (uptakes) SCOT antennae, port and starboard Forward engine room GT air intake filter housing (downtakes)

The generic Type 22 frigate was originally intended to replace the successful Leander-class ship. Yarrows were given the job of working out the details to produce a large and powerful warship against an overall design development by the Ministry of Defence. This provided the Navy with a frigate not only adept in its main anti-submarine warfare role, but also as a general-purpose frigate - as was shown in the Falklands War, when HMS Brilliant and HMS Broadsword served with distinction, accounting for several Argentine aircraft and in constant demand for other roles around the task group. Indeed, Jane's Fighting Ships of 1983 wondered "how the term 'frigate', which is used for Type 22 because of their primary ASW role, will stand up with the new Batch 3 design, possessing greater anti-ship capability than the Type 42 destroyers, is not clear." The first four ships (Batch 1) and all except HMS Sheffield of the six-strong Batch 2 no longer fly the White Ensign, but the four ships of Batch 3 score highly when sailors rate the relative merits of units of the surface flotilla. HM ships Cornwall (F99), Cumberland (F85), Campbeltown (F86) and Chatham (F87) are big, spacious ships - the largest frigates ever built for the Navy and, with a fully-laden displacement of 4,900 tons, comparable in size to wartime light cruisers.

These four ships are very different to their Batch 1 sisters. For example, they are powered by pairs of Rolls-Royce Spey and Tyne engines instead of Olympuses and Tynes, and the all-missile concept was ditched when the Vickers 4.Sin gun was chosen instead of the Exocet missile launchers featured in the first ten ships. They also have a larger flight deck, allowing them to accommodate Sea King helicopters, although a Lynx is more normally carried. The difference is probably most noticeable in the ships' profiles - the Batch 1s were almost 20 metres shorter than the later ships, and the Batch 2 and 3 versions have a more sharplyraked bow. The Batch 3 ships have accommodation for a Flag Officer and staff, and their size and communications capability make them ideally suited to the role of flagship - HMS Cornwall acted as such in the major global deployment Naval Task Group 2000. Batch 3 ships have a COGAG power arrangement - Combined Gas turbine And Gas turbine which gives them a top speed in the order of 30 knots, although an economical cruising speed in excess of 14 knots on Tynes alone is a common scenario. Each has a ship's company of 250, with 30 or so being officers, although the ships have accommodation for just over 300. The first of the Batch 3s, HMS Cornwall, was launched at Yarrows in October 1985, with her sisters going down the slipway at the rate of one a year thereafter, at Yarrows (Cumberland), Cammell Laird (Campbeltown) and Swan Hunter (Chatham) respectively. Their size makes them comfortable ships to serve in, and they have an impressive array of weapons, from the single automatic 4.Sin gun for'ard to the Seawolf anti-air and Harpoon antiship missiles. The four Type 22 Batch 3 ships are being upgraded in a rolling programme which will see their capabilities enhanced, giving them a key role in the Fleet for years to come.

34. Midships life raft stowage 35. Starboard main propulsion gearbox 36. Bilge keel 37. Forward engine room 38. Twin Rolls-Royce Spey gas turbines 39. Forward auxiliary machinery room 40. Forward stabiliser 41. Twin diesel generators 42. DLF3 decoy launchers 43. Foremast 44. Forward auxiliary machinery room diesel exhaust shroud 45. ESM antenna 46. Surveillance radar 47. Wind speed and direction anemometer 48. Navigation radar 49. Goalkeeper 30mm self-defence system gun 50. Surface-to-surface missile launch ers; eight missiles 51. Missile eflux shrouds 52. Electrical power room 53. Scrambling net 54. Office 55. Air treatment unit 56. Junior ratings mess 57. Junior ratings recreation space 58. Senior ratings dining hall 59. CPOs recreation space 60. Crew cabins 61. Swimmer of the Watch hoist, port

and starboard 62. First Officer's day cabin and dining room 63. Pantry 64. Seagnat decoy launchers 65. Signal projectors, port and starboard 66. Seagnat lockers 67. Forward Seawolf tracker 68. Office 69. Navigation Officer's cabin

70. Chart Room 71. Commanding Officer's cabin and bathroom 72. Electro-optical scanner, port and starboard 73. Bridge 74. Starboard main and emergency lights 75. First Officer's bathroom 76. Forward air treatment units 77. CPOs recreation space

73. 79. so. 81. 82. 83. 84.

Provision room cold store Keel sonar housing Sonar equipment room Gunner's store Crew bathrooms, NAAFI store to port Officers bathrooms Refuelling at sea winches, port and starboard 85. Forward six-round Seawolf missile launcher 86. Vickers 4.5in gun

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Forward mooring bollard Gun mounting Hydraulic equipment room Store room Ratings baggage store Anchor winches Jackstaff with forward mooring light 94. Towing cable eye 95. Twin anchors 96. Bow sonar housing