I worked for a UAV development firm as a student. Since that time, I have always thought that the "UFO" cultural phenomena was largely a response to sightings

I worked for a UAV development firm as a student. Since that time, I have always thought that the "UFO" cultural phenomena was largely a response to sightings of very early attempts at unmanned flight. This document makes me all the more certain. The lay public would have not had any inkling of such technology at that time, exacerbating known problems laypeople have with assessing the size and speed of aircraft. They would have been primed to think in terms of extraterrestrial life by a long sci-fi tradition.