Back in the early 1990s during the Early DARK Evening I witnessed a set of lights over NorthEast Mesa Arizona heading from East to West.

These lights were in the form of a giant flying wing.
It appeared solid.
I was driving north and increased my speed to intercept the appearant UFO.
My speed reached 90 MPH to put the target on the collision course for me to pass under the appearent UFO to achieve a CPA ( Closest Point Of Approach).
I ran out of road and was forced to pull over to the right of the road prior to CPA.
After pulling over possibly a minute or so passed and I witnessed the following.
The White Lights broke apart and formed a single trane of small aircraft which follwed one another in exact spacing and altitude so exact to land at Falcon Field in Mesa Arizona that I belive they were not under manual control but automated control.
This airfield is close to Hughs Helicopter that makes the Apache Helicopter. Also Called McDonald Douglas.
It is my personal belief from what I witnessed there has existed for some time an AutoPilot that can control the actions of a group of small aircraft and that is what many people are reporting as giant flying UFOs that look like a series of lights and give the impression of being a solid thing.
The precision and accuracy of flying that I witnessed would seem almost impossible for individually piloted group of planes.
Although I was able to Identify this Appearant UFO I think I would not have been able to if I had not actually witnessed the landing at Falcon Field In Mesa Arizona in the Early 1990s.
I genuinely think they were under GROUP Automated Control and not Individual pilots.
Witness indicates that date of incident is approximate.  PD