Today is the fifth anniversary of the post that started This Date in Aviation History. It began as a one-off article about the first flight of the Shuttle Carrier Aircraft, and gradually grew into the biweekly obsession of mine (though with a three month hiatus three years ago to prepare for an orchestra audition, which I won) that I continue to work on and hopefully improve to this date. To all of you who have read and commented (and corrected) my posts in the past five years, thank you. It’s been a great ride, and I’ve enjoyed every word of it. And though this sounds suspiciously like a good-bye post, I have no intention of stopping.