Sept 1957 Cambria CA NORAD
“How can UFOs perform almost 90-degree maneuvers at the high velocity they are traveling without trashing themselves and their crafts?”
6-28-1947 Maxwell AFB, Alabama sighting by two pilots and two intelligence officers..”made 90 degrree turns”
6-1-1951 Wright-Patterson AFB dAYTON, OH..
NICAP Report “Disc observed making right angle turn”
“The UFO Evidence, p. 19”
Some folks (Lue Elizondo for one) have suggested that we are seeing something that is moving between two dimensions.
Not sure how current physics would account for such, but there are observations that would fit nicely into that scenario (like beings that appear to walk through walls or windows).