I thought this was just me, but I was in a fight with someone, I think his name was Tokyouo. He was flying a N1K, and I swear, he pulled it perfectly vertical, and held it, without stalling, then brought it back and was closing on me!
I would equate this to the "Cobra" manuever used by Su-27 Pilots at airshows.
I've never seen anything like this in AH. It was either somthing weird, or the best damn N1K pilot I've ever seen.
Is this maneauver possible?