ORIGINAL: JohnnyS
And you got it!
You're up!
Thank you, Sir. Now, let's change the pace for a bit. This is something that always impressed me. I have a hunch this will prove to be an easy question to answer; but I want to highlight one of the greatest military aviation feats of all time. The question relates to a particular model of aircraft; but the model of aircraft is perhaps less well known than is a single aircraft of the type, its pilot and the epic feat they performed.
Question: What warbird do I describe?
Clues:
(1) This was originally a civilian aircraft; but it was a civilian aircraft largely based on a prototype military aircraft. And, a civilian aircraft always acknowledged as having important military value; one which was eventually pressed into military service.