I am a retired air traffic controller and this sighting took place when I was 16. I was extremely interested in aviation at that time and knew just about every type of aircraft. The ceiling was approximately 1000 ft , myself and two friends saw three discs approximately 30 ft in diameter moving in a triangle formation from North to South at the base of the cloud layer. They would flip up simultaneouly into the cloud layer and then descend out of it. They made no sound. It appeared to me that they may be reacting to the height above ground and would rise by flipping upwards to gain more height. If anyone has a similar flipping sighting would they please post.

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