Wyvern is made between the two. Since the sixteenth century, in English, Scottish, and Irish heraldry, the key difference has been that a wyvern has two legs, whereas a dragon has four. However, this distinction is not commonly observed in the heraldry of other European countries, where two-legged dragon-like creatures being called dragons is entirely acceptable. In the modern fantasy genre, there is little differentiation between dragons and wyverns, with two-legged, magical reptilian creatures all likely to be referred to as "dragons" without any differentiation between types. Wyverns, when present as creatures distinct from dragons, tend to appear as less magical
Westland Wyvern while in service and testing there were 68 accidents, 39 were lost and there were 13 fatalities; including two RAF pilots and one United States Navy pilot. In 1949, a prototype Westland Wyvern TF.2 on a test flight crashed into houses in Yeovil, resulting in the death of four people, including the pilot. An unflown pre-production aircraft, the last to be fitted with the original Eagle piston engine, (serial number "VR137") is on display at the Fleet Air Arm Museum in Yeovilton, England. Westland Wyvern The Westland Wyvern is a British single-seat carrier-based multi-role strike aircraft built by Westland Aircraft