Vosper Thornycroft MK9

Last updated
F83 Erinomi.jpg
F83 Erinomi at Woolston
Class overview
NameVosper Thornycroft MK9
Builders Vosper Thornycroft
OperatorsNaval Ensign of Nigeria.svg  Nigerian Navy
Preceded byVosper Thornycroft MK 3
Succeeded by Qahir class
Built1977-1978
In commission1979-present
Planned2
Completed2
Cancelled0
Active0
Laid up2
Lost0
Retired0
Preserved0
General characteristics
Class and typeVosper Thornycroft MK9
Type Corvette
Displacement850 tonnes full displacement
Length226 ft (69 m)
Beam31 ft 6 in (9.60 m)
Propulsion
Speed27 knots (50 km/h; 31 mph)
Range2,200 nautical miles (4,100 km; 2,500 mi) @ 14 knots (26 km/h; 16 mph)
Complement87 plus 3 flag staff[ clarification needed ]
Sensors and
processing systems
  • Radar:
  • 1 × Plessey AWS-2 air search radar
  • 1 × Decca TM1226 navigational radar
  • 1 × Hollandse WM24 fire control radar
  • Sonar:
  • 1 × Plessey PMS-26 sonar
Electronic warfare
& decoys
  • Cutlass ESM
  • Protean countermeasures launchers
Armament

The MK9 Corvette was ordered by the Nigerian Navy in April 1975 as follow-ons to the smaller Vosper Thornycroft MK3, which was confusedly grouped under the same Hippo class designation, [1] both ships being named after the word for hippopotamus in local languages. The two ships were built by Vosper Thornycroft.

Laid down in October 1975, NNS Erinomi was launched on 20 January 1977 and commissioned on 29 January 1980. She was given the pennant number F83. She stopped making patrols in 1993 due to constant breakdowns. In 1994-1995 she underwent a refit at Lagos which at least made her seaworthy again, but with some systems off-line. The Erinomi participated in a December 1995 naval exercise; she rarely left port thereafter until 1997, when minor repairs allowed her to again undertake patrols, but by 2007 the ship was again non-operational.

Her sister ship, the NNS Enyimiri, was commenced in February 1977, launched on 9 February 1978 and commissioned on 2 May 1980. She was given the pennant number F84. She had ceased patrols in 1992 and by 1996 was in extremely bad shape. In 2000 a major repair effort allowed her to leave port again, although with most sensors and some weapons nonfunctional. In December 2004, the Enyimiri suffered a massive explosion resulting in crew fatalities and severe damage to the ship. She was decommissioned on 22 December 2004. [2]

Citations

  1. Cowin p.138
  2. "FFL Vosper Mk9 (Erinomi) class" . Retrieved April 8, 2012.[ dead link ]

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References