HMS Coventry was a Type 42 (Sheffield-class) destroyer of the Royal Navy. Laid down by Cammell Laird and Company, Limited, at Birkenhead on 29 January 1973, she was launched on 21 June 1974 and accepted into service on 20 October 1978 at a cost of £37,900,000.

The Westland Lynx is a British multi-purpose twin-engined military helicopter designed and built by Westland Helicopters at its factory in Yeovil. Originally intended as a utility craft for both civil and naval usage, military interest led to the development of both battlefield and naval variants. The Lynx went into operational usage in 1977 and was later adopted by the armed forces of over a dozen nations, primarily serving in the battlefield utility, anti-armour, search and rescue and anti-submarine warfare roles.