Oh My God!!! I thought that it was just me, I was afraid to ask my neighbors if they had heard what I had heard on the evening of 2/27/13 in Clayton, NC. Now I know that I am not losing it!!! My son was in his room, and I was in my room and I realized that there was a constant roaring noise similar to an airplane engine, but it appeared to be hovering over our apartment building. I noticed that this sound was right over the roof and had a duration of 2 minutes. It would then just abruptly stop, (I didn't hear any trailing of sounds, it would just stop). The sound would come back after around 10 minutes it did this 3 times. My dog's hair stood up on the back of his neck and he would not run to the window to see what was going on, he was clearly on alert. My son came out of the room shaken, as was I and we surmised that it could not have been a helicopter nor a plane flying low because the sound was a constant loud engine sound directly above our heads n! ot like a plane totally indescribable, nothing that I truly have ever heard. I shared this with a friend in another state, who texted me the next day to see if I had asked my neighbors if they had heard what my son and I had heard that evening. I didn't want to seem cuckoo, so I didn't share my experience with neighbors. I heard the noise again this evening on Thursday 3/7/13. I am wondering if there is a coincidence of the fact that the woods have been cleared where I live and from the sky it my look like a landing field. I know that what I heard that evening in those three intervals was not man made as well because the sound was too close and the noise stopped abruptly after a length of 2minutes of roaring. The event lasted about 30 to 40 minutes. I do believe then as I do now, that my son and I had encountered a UFO over our apartment building as we are on the top floor. We also live right off of Highway 70