Silent, rotating disk with alternating red and white light panels, approxomately 20 feet in diameter, 30 to 40 feet off the ground.

It was just after dark in mid-June 1972.  I was 20 years old at the time, home for summer after my sophomore year at UNC-CH. Considering the time period, it is important to note that I did not use drugs and drank very rarely.   We lived in the semi-country, about 1.5 miles from the Greensboro Airport.   I had just walked into the edge of the woods  to burn our trash in the burn-barrel.  As I came out of the woods, I saw a disk with a diameter of about 20 feet silently rotating just off my right side.  It was 30 to 40 feet off the ground and had alternating flat red and white lighted panels around its sides.  I stood there literally frozen for at least a minute watching the red and white lights as they slowly and silently rotated.  My German Shepherd sat down transfixed.  When I had the wherewithal to return to the house, I had to call him several times to come with me.  I went inside to call my father (no one was at home at the time), and my dog remained on the back porch steps, still transfixed.  Several minutes later when I went back outside, the disk had disappeared.  My dog, an excellent watchdog, never barked once. I can still vividly recall that night.  There is no doubt in my mind what I saw.
Date is approximate.  We have arbitrarily assigned a date.  PD