Ol-class tanker (1965)
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|Preceded by||Tide class|
|Succeeded by||Wave class|
|Class and type||Tanker|
|Displacement||33,240 long tons (33,773 t) full load|
|Length||648 ft (198 m)|
|Beam||84 ft 2 in (25.65 m)|
|Draught||34 ft (10 m)|
|Propulsion||2× Pametrada steam turbines, double reduction geared|
|Speed||21 kn (24 mph; 39 km/h)|
|Range||10,000 nmi (19,000 km) at 16 kn (18 mph; 30 km/h)|
|Aircraft carried||3× Westland Wessex or Westland Sea King helicopters|
The three ships in the class, RFA Olwen, RFA Olmeda and RFA Olna, were an evolution of the earlier Tide-class replenishment oilers. The lead ship of the class was launched as RFA Olynthus, thus becoming known as Olynthus class although she was renamed RFA Olwen in 1967, to avoid confusion with HMS Olympus. Consequently, the class became Olwen class, and thereafter Ol class.
Similarly, RFA Olmeda originally entered service as RFA Oleander, but was later renamed to avoid confusion with HMS Leander.
The three ships saw service in a wide range of locations, including during the Falklands War, which saw Olmeda take part in the recapture of Thule Island, and in the Persian Gulf during the 1990/91 Gulf War.
The ships were replaced by the Wave class. One modified Ol-class vessel, Kharg, was built for the former Imperial Iranian Navy in 1977. The vessel was delivered to the Islamic Republic of Iran Navy in 1984, and was lost on 2 June 2021.
|Olwen (ex-Olynthus)||A122||Hawthorn Leslie and Company, Tyneside||11 July 1963||10 July 1964||21 June 1965||1999|
|Olna||A123||Hawthorn Leslie and Company, Tyneside||2 July 1964||28 July 1965||1 April 1966||24 September 2000|
|Olmeda (ex-Oleander)||A124||Swan Hunter & Wigham Richardson, Wallsend, Tyne and Wear||27 August 1963||19 November 1964||18 October 1965||January 1994|
|Kharg||431||Swan Hunter & Wigham Richardson, Wallend||27 January 1976||3 February 1977||5 October 1984||Sank 2 June 2021|
- "RFA Olwen(2)". Historical RFA. Retrieved 2 August 2017.
- "Iran warships enter Mediterranean via Suez Canal". BBC News. 18 February 2012.
- "Iran navy's largest ship sinks after fire onboard". The Independent. UK. 2 June 2021. Retrieved 2 June 2021.