Wyvern (Dungeons & Dragons) aggressive, and able to lash with a sting-equipped tail. This edition of the "D&D" game included its own version of the wyvern, in the "Dungeons & Dragons Expert Set" (1981 & 1983). The wyvern was also later featured in the "Dungeons & Dragons Game" set (1991), the "Dungeons & Dragons Rules Cyclopedia" (1991), and the "Classic Dungeons & Dragons Game" set (1994). The wyvern appears first in the "Monstrous Compendium" Volume One (1989), and are reprinted in the "Monstrous Manual" (1993). The Mercykiller wyrm, a relative of the wyvern for the Planescape campaign setting, appeared in "In the Cage: A
Westland Wyvern "Albion" until March 1955 when the problems had been resolved. 830 Sqn. took the Wyvern into combat from HMS "Eagle", flying 79 sorties during Operation Musketeer; the armed response to the Suez Crisis. Two Wyverns were lost to damage from Egyptian light anti-aircraft fire; both pilots of the aircraft successfully ejected over the sea, and were picked up by "Eagle"'s search and rescue helicopter. The squadron returned to the UK on "Eagle" after this conflict and disbanded in January 1957. Consequently, 813 was the last Wyvern squadron, disbanding on 22 April 1958. All Wyverns were withdrawn from service by 1958: