Wyvern Wyvern A wyvern ( , sometimes spelled wivern) is a legendary creature with a dragon's head and wings, a reptilian body, two legs, and a tail often ending in a diamond- or arrow-shaped tip. A sea-dwelling variant dubbed the sea-wyvern has a fish tail in place of a barbed dragon's tail. The wyvern in its various forms is important to heraldry, frequently appearing as a mascot of schools and athletic teams (chiefly in the United States, United Kingdom, and Canada). It is a popular creature in European and British literature, video games, and modern fantasy. The wyvern in heraldry and
Westland Wyvern (and equally troubled) Blackburn Firebrand. Several second-line squadrons also received Wyverns around this time. Total production was 127 airframes with 124 aircraft completed, as the last three Eagle piston-engined airframes, VR138, -139, and -140, were never completed. The first carrier trials were carried out by the first pre-production Wyvern TF.2 aboard on 21 June 1950. Despite this, when the Wyvern S.4 entered service with 813 Naval Air Squadron in May 1953, it had not obtained clearance for carrier operations, this being obtained only in April 1954. The Wyvern was in service with the Fleet Air Arm from 1954 to 1958.