Although some of the aircrafts already mentioned have better specs than the Zero, I've alwas been impressed by thenfact that the Zero was such a formidable opponent for a lengthy time frame, without us being able to identify it's weakness during dogfights. Only after we luckily found Koga's nearly intact Zero in the Aleutians, repaired it and flew it ourselves, did the tactics necessary to level the playing field with the Zeke reveal themselves. Was this as uncommon as it seems to me? Are there examples of another aircraft's shining success for a long length of time suddenly broken by similar circumstances, or a fighter's glowing success rate ended by something OTHER than the arrival of the next generation of aviation advancements? i.e. - the next bigger/faster/improved range fighter was inevitable, developed, and it alone could get the job done against the plane that had been kicking everyone's butts?