In 1957 a strange oval spotted in Kansas that hovered, flew straight up, made 90 degree turn and accelerated at great speed vanished.

This happened many years ago.  I have never forgotten what I saw.
I was a teenager on a car trip family vacation sitting in the back seat on the right hand side. I was watching out the window when I spotted something unusual.  There was a brown farmhouse about a quarter mile from the road.  There was also a brown shed a little distance from the house on the right.  Beside the shed was a small normal water tower and right beside the top of the water tower was what appeared to be a second water tower...except it had no supporting structure and was just hovering.
As I was watching the legless oval shot straight up then made a 90 degree turn to the west and zipped out of sight at great speed.  I have a vivid recollection of this even after all these years.
Witness indicates that the date of the event is approximate.  PD