at least 300 foot dia. 50 foot in height . Light from bottom center. light from square ports 10 ft. by 10 ft.

I was on active duty in the U.S.A.F.. I was stationed at Mather A.F.B.. Sacremento, CA. My rank was sargeant. My specialty, Aircraft crewchief. My security clearance was secret. The exact date was approximately June 15,1975. The reason I say this is because the movie "Jaws" had just came out at Drive-ins and Theatres. I was double-dating with a friend of mine and we decided to go to the drive-in to see "Jaws". The Drive-in had Four Screens which were positioned North & South, East & West. My friends and I were waiting for the movie to start, we were facing the East Screen. The Sun was beginning to set below the Horizon which at that time the movie that was playing on the West Screen started. I had turned around in the car and was watching it when I noticed a bright object approximately 30 to 40 degrees above the horizon, West by Southwest. I thought to myself that it was a bright star. I watched it thinking to myself that this was kind of odd because it was still light. I watched it and it began to move at a high speed from West to East. I thought I was possibly watching a SR-71 aircraft from Beale A.F.B. stationed at Marysville, CA. and it was in full afterburner and this was why it was moving so fast. At the time I knew the SR-71 was a Mach 3 Or Mach 5 acft. I told my friend ((name deleted)) to check this out. As we were watching it, it stopped suddenly and turned 90 degrees North toward us. It came straight toward us and hoverd 300 feet above and than dropped behind the Eest screen. People got out of their vehicles and watched in amazement. It raised up behind the screen to about 600 feet and traveled north at an incredible speed. No Sound!!!!
Date of incident is approximate.  PD