Wessex in classical heraldry and is found on a number of church windows in derived shields such as the Arms of the Collegiate Church of St Peter at Westminster (Westminster Abbey, which was founded by the king). At its greatest extent Wessex encompassed the modern areas of Hampshire, Isle of Wight, Dorset and Wiltshire, as well as the western half of Berkshire and the eastern hilly flank of Somerset. This covers an area of about . The English author Thomas Hardy used a fictionalised Wessex as a setting for many of his novels, adopting his friend William Barnes' term "Wessex" for
Westland Wessex the Royal Navy. For British production, it was re-engined with a single Napier Gazelle turboshaft engine, first flying in that configuration on 17 May 1957. The lighter (by 600 lb) Gazelle engine meant some redistribution of weight. The first Westland-built Wessex serial "XL727", designated a "Wessex HAS.1", first flew on 20 June 1958. The first production Wessex HAS1 were delivered to Royal Navy's Fleet Air Arm (FAA) in early 1960; the Wessex was the first helicopter operated by the FAA to be purpose-designed from scratch as an anti-submarine platform. In service, the Wessex was found to be a major improvement