Wyvern and more as dangerous beasts smaller, weaker, and less intelligent than dragons. While a fantasy dragon often has a breath weapon, such as fire, wyverns rarely have such abilities and are more feared for their ferocity and sharp teeth and claws. Wyverns are sometimes associated with poison, either in the form of venomous fangs or poisonous breath, but this trait is not universally represented and may be a more recent addition to the lore based on the gila monster. A wyvern will typically be unable to speak, while a dragon often does have that ability. The wyvern features frequently in
Westland Wyvern with smoke from a fuel leak onto the exhaust ducting. Clyde development was subsequently cancelled by Rolls-Royce after only 50 hours of flight time for the TF.2, and the aircraft was delivered to Napier & Son to be fitted with the Nomad turbo-compound engine. The latter engine never materialised, however and this aircraft was used for crash barrier trials. The first Python-powered TF.2 flew on 22 March 1949 and this aircraft introduced the ejection seat to the Wyvern. Twenty TF.2s were completed to the Python design although after three years of testing what was then a revolutionary aircraft design, a