NATO ASW Design Challenge

[MC Spoilt B'stard]

NATO Submarine Hunting Frigate Proposal 1981

Type: Frigate
Primary role: ASW
Secondary role: ASuW & AAW

Length: 116 m
Beam: 12,6 m
Displacement: 3,900 t
Max displ. : 4,700

Propulsion
2 shaft COGOG
2x Rolls Royce Tyne RM1C gas turbines 4,900 shp (3,700 KW each)
2x Rolls Royce Olympus TM3B gas turbines 27,500 shp (19,200 KW each) [ boost]

Speed
Cruise: 25 knots
Max: 38+ knots

Endurance:
4,500 Nm at 16 knots

complement
145 – 163

Armament:
- 1 x 76mm OTO Melara
- 2x 375mm Bofors Depth charge Launcher
- 2x mk32 SVTT [triple]
- 2x dual Harpoon Anti-ship missile’s
- 1x MK29 8-cell NSSM surface-to-Air Missile’s
- 6x 20 mm Oerlikon dual purpose canon

Aviation:
- 1x Westland Lynx ASW helicopter
- Landing platform for one and hangar for 2 Westland Lynx helicopters

Special Features:
- 1x Towed Array Sonar
- 1x ''Backward Looking Sonar''

[Hood]

Type 25 or Chatham Class Frigate



Displacement: 3,500 tons standard, 4,100 tons fully loaded
Dimensions: 412 feet long, beam 48ft 6ins, draught 19 ft (over sonar dome)
Gun Armament: Two 20mm Oerlikon L/75AA in GAM-BO1 single mountings
Missile Armament: Three sextuple BAe Sea Wolf launchers (45 missiles) and two qaudruple Harpoon launchers (8 missiles)
Torpedo Armament: Two triple 12.75in A/S STWS-2 torpedo tube mountings (18 Stingray or Mk 46 A/S torpedoes)
Aircraft: One EH101 or Lynx HAS. Mk.2/3 in a hangar aft (Skua ASMs and Stingray A/S torpedoes)
Electronics: One Type 967/968 air/surface search radar, one Type 1006 navigation radar, two Type 911 fire-control radars used in conjuction with two GWS 25 Mod 3 SAM fire-control systems, one Sea Archer gun-fire control system, two chaff launchers, four Sea Gnat decoy launchers, one Type 2031 passive towed sonar array, one Type 2050 bow active/passive search and attack sonar, one Type 182 towed torpedo decoy system, one CACS 5 action information system, two Type 970 jammers, UAA-1 Abbbey Hill ESM, Link 11 and 14 datalinks and two SCOT satelite communication systems
Propulsion: COGAD arrangement. Diesel-Electric cruise powerplant which is very quiet, has no mechanical connection to propellers and diesels are above watelrine to further reduce noise, electric drive also increases endurance and the generators drive the propellers and the electrical system. Four Paxman Valenta 12 RPA 200 CZ diesels delivering 7,000hp and two RR Spey SM1A for fast running delovering 34,000hp to two shafts.
Performance: 28 kts clean fast, 20 knots electric cruise; range 8,500nm at 15 kts
Complement: 12 + 146 with a maximum of 17 + 188 possible

Class
HMS Chatham (F90), Yarrow, commissioned April 1987
HMS Coventry (F91), Yarrow, commissioned June 1988
HMS Cornwall (F92), Cammell Laird, May 1988
HMS Campbelton (F93), Swan Hunter, Jan 1989
HMS Crystal, Yarrow (F94), Nov 1989
HMS Consort, Yarrow (F95), June 1990
HMS Chieftan (F96), Swan Hunter, Aug 1989
HMS Comet (F97), Cammell Laird, Nov 1989
HMS Contest (F98), Yarrow, Aug 1990
HMS Crusader (F99), Yarrow, May 1991
HMS Crown (F100), Swan Hunter, Oct 1990
HMS Cumberland (F101), Cammell Laird, Dec 1991

[TimothyC]

I'm starting my write ups on everyones work, so details people, details.

[denodon]

Well I've decided to scrap my previous hull design in favor of a slightly larger one that can fit more equipment on board. I'll post a WIP as soon as it's ready. I'm going to keep the design I've ditched though in case I ever want to use it in future.

[heuhen]

I'm starting my write ups on everyones work, so details people, details.

Are the enough details on mine!?!

[TimothyC]

I'm starting my write ups on everyones work, so details people, details.

Are the enough details on mine!?!

Oh Lord yes.

I don't need any more details from you. I'd rather not be buried under a mountain of text (I mean this in a good way).

[Colosseum]

Depth charge racks, Hedgehog projectors, K-guns, 3"/50 AA and Weapon Able. Anything more advanced is for cowards.

I win.

[Thiel]

Displacement: 3200 tons full load
Dimensions: 316.5 feet long, beam 47.5 feet
Gun Armament: Two 20mm Oerlikon L/75AA in GAM-BO1 single mountings
Missile Armament: One sextuple BAe Sea Wolf launchers
Torpedo Armament: Two triple 12.75in A/S STWS-2 torpedo tube mountings (18 Stingray or Mk 46 A/S torpedoes)
Aircraft: One Westland Sea King HAS.5
Electronics: One Type 967/968 air/surface search radar, one Type 1006 navigation radar, one Type 911 fire-control radar two chaff launchers, two Sea Gnat decoy launchers, one Type 2087 passive towed sonar array, one bow active/passive search and attack sonar
Propulsion: CODLAG, one RR Olympus TM3B 21.000 kW and two 5500 kW diesels turning two screws.
Performance: 30, 20 knots cruise; range 6000 at 15 kts
Complement:

There's a fair amount of WAGing involved, so take it with a grain of salt. I've yet to draw the towed array. Does anyone have a drawing of the installation?
Anyway, this ship takes a rather blunt force approach to speed which is why she's producing a grand total of 32.000 kW when everything is rocking.
In case anyone's wondering about the name, the RN has had at least two ships by that name. One was a captured slaver, the other a hired armed cutter. There's also mentions of a third ship, a hired armed lugger, though it may in fact have been the same ship as the cutter.

[heuhen]

"Colosseum" The epic winner!

[SHIPDUDE]

"HMS Black Joke" probably isn't the best name for modern multicultural Britain!