According to wikipedia, the letter U is a fairly recent addition to our alphabet. Prior to this, words were written with only the letter V for both the consonant and vowel "form" of V.
My previous post was some old airplanes. It is simply amazing how fast technology moves. Here is a huge jumbo jet I captured on the same day. Sorry about the poor quality, but this was pretty much a speck in the sky from where I was standing.