Artist's impression of Vickers Type 1536 light frigate. An Westland/Aerospatiale Sea Lynx can be see entering a telescoping hanger aft.
Source: "Sea Wolf plans revealed at Royal Navy exhibition" Flight International September 24, 1977 p. 881.
http://www.flightglobal.com/pdfarchive/view/1977/1977%20-%202846.html
Edit:Type number corrected.
The frigate is closely based on the Vickers/Vosper Mk V destroyer and displaces 1,500 tons. A Westland/Aerospatiale Sea Lynx can be carried for anti-submarine operations, and other weapons include a Selenia Albatros surface-to-air missile system fitted with Aspide, and four launchers for the Aerospatiale Exocet anti-ship missile.
Source: "Sea Wolf plans revealed at Royal Navy exhibition" Flight International September 24, 1977 p. 881.
http://www.flightglobal.com/pdfarchive/view/1977/1977%20-%202846.html
Edit:Type number corrected.