The fourth HMS Ark Royal, former flagship of the Royal Navy cuts a large and lonely figure in the Hamoaze (where the estuary of the River Tamar joins Plymouth Sound) journeying to a Cairnryan shipbreaking yard in Scotland. Although the Audacious class aircraft carriers were replaced with three Invincible class carriers, HMS Invincible, HMS Illustrious and HMS Indomitable, the latter's name at its launch in 1985 was changed to Ark Royal at the behest of an emotive public.