i was on flt. line at incirlik air base turkey servicing aircraft with liquid ox in 1963. an ap was on guard at entrance to the flt. line. i was looking at the sky thinking of home and in 90 or less days i would be home and out of the af. i was staring up the run way and it looked like a bright star was getting bigger. then i noticed it seemed moving strait at me. i called to the ap and asked him if he saw it, he wondered what it was. at first i thought it might be an f100 then realized way too fast. it took about 3 to 5 seconds to get over head, then stopped for about a second it then went right for not even a second and stopped again, it then returned the way it came over the horizon in just a few seconds. the ap and i talked about reporting it. i told him i was short (less than 90 days left) so i wouldn't be talking to anyone. i thought they may want to extend me for a longer time to discharge. i don't know if he reported it or not. one of the tower people i new was on duty that night and we spoke about this and the tower had some tape or record but i never saw or herd anything on base about it. at first i thought it might be a missile from russia but it was so fast and could stop instantly and start again in a different direction, we had nothing here that could do that. we had super sonic aircraft here and they would be a snail in comparison to this. i got out of the af in about 86 days and didn't talk about it, i figured people would think that i was off my rocker.