Superb 1990
| Name | No | Yard No | Builder | Laid down | Launched | Comp | Fate |
| Swiftsure | S126 | VSEL, Barrow | 6.6.1969 | 7.9.1971 | 17.4.1973 | BU 5.1992 | |
| Sovereign | S108 | VSEL, Barrow | 18.9.1970 | 17.2.1973 | 11.7.1974 | stricken 9.2006 | |
| Superb | S109 | VSEL, Barrow | 16.3.1972 | 30.11.1974 | 13.11.1976 | stricken 9.2008 | |
| Sceptre | S104 | VSEL, Barrow | 19.2.1974 | 20.11.1976 | 14.2.1978 | stricken 2.2010 | |
| Spartan | S105 | VSEL, Barrow | 26.4.1976 | 7.4.1978 | 22.9.1979 | stricken 1.2006 | |
| Splendid (ex-Severn) | S106 | VSEL, Barrow | 23.11.1977 | 5.10.1979 | 21.3.1981 | stricken 2004 |
|
Displacement standard, t |
4000 |
|
Displacement normal, t |
4200 / 4900 |
|
Length, m |
82.9 |
|
Breadth, m |
9.83 |
|
Draught, m |
8.25 |
|
No of shafts |
1 |
|
Machinery |
2 sets GEC-Alstom geared steam turbines, Rolls-Royce PWR1 nuclear reactor |
|
Power, h. p. |
15000 |
|
Max speed, kts |
20 / 28 |
|
Fuel, t |
nuclear |
|
Endurance, nm(kts) |
practically unlimited |
|
Armament |
5 - 533 TT (bow, 20, mines instead of torpedoes) |
|
Electronic equipment |
S126: type 1003 radar, type 2001, type 2007, type 2019 sonars, UAC ECM suite, 2x SSE Mk 8 decoy launchers, DCA CCS S104, 108, 109: type 1003 radar, type 2001, type 2007, type 2019 sonars, UAC ECM suite, 2x SSE Mk 8 decoy launchers, DCB CCS S105, 106: type 1003 radar, type 2020, type 2007, type 2019 sonars, UAC ECM suite, 2x SSE Mk 8 decoy launchers, DCB CCS |
|
Complement |
97 |
|
Diving depth operational, m |
~300 |
Project history: Shorter and of fuller hull-form than previously, and designed to dive deeper. The fine bow-section means that only five tubes can be fitted, but in other respects the vessels are merely improved Valiants.
Modernizations: 1984, Sovereign; 1986, Superb; 1987, Sceptre: - type 2001 sonar; + Sub-Harpoon SSM (4 UGM-84B instead of torpedoes), type 2020, type 2024 sonars
1989, Spartan; 1991, Splendid: + Sub-Harpoon SSM (4 UGM-84D-2 instead of torpedoes), type 2024 sonar
1997, Sovereign; 1998, Superb; 2001, Sceptre; 2003, Spartan: - type 1003 radar, type 2020, type 2024 sonars, UAC ECM suite, DCB CCS; + type 1006(1) radar, type 2074, type 2046, type 2077 sonars, UAP(1) ECM suite, type 2066, 2071 torpedo decoys, DCB/DCG CCS
1998, Splendid; 1999, Spartan: + Tomahawk CruM (4 UGM-109 instead of torpedoes)
2008, Sceptre: - Sub-Harpoon SSM
Naval service: No significant events.
Sceptre 1978
Superb 2002
© Ivan Gogin, 2016-18