It is seventy years since since 24 June 1947, when Kenneth Arnold saw nine crescent-shaped objects flying at high speed past Mt Rainier; in other words, seventy years since the emergence of the UFO phenomenon. Often, when I talk or write about phantom airships, the topic of UFOs comes up, and with good reason. The similarities are obvious: both modern UFOs and the earlier mystery aircraft are to a large extent unknown objects seen in the sky, upon which we project our own fears and fantasies. Once those fears and fantasies reflected the concerns caused by coming of flight; then they reflected the concerns of the dawn of the rocket/atomic age.
And yet, when the topic of UFOs does come up, for the most part I will do no more than note the obvious correspondences, and disclaim any interest in the modern manifestation of the phenomenon. In other words, I run the other way. So why is that?