I am pretty sure I have seen some kind of variant of what is referred to by UFO/UAP enthusiasts as the TR-3B now two different times in my life, one time as I was walking at night in either late 2014 or early 2015, the other time as I was driving at night last winter ('22 - '23)
Both times: Dark, large, equilateral triangular craft with reddish orange lights emanating from near the tips of the triangle, a brighter white light emanating from the center. Just hovering. No discernable sound as if from a jet or helicopter or rocket.
The second time I saw such a thing I was driving over a highway overpass/bridge. It was much closer to the ground, to the point that I can point out on a map exactly which hangar of a nearby airport it seemed to be landing at. Also the red and green running lights were on. This second time that I was closer, I would estimate if you drew a line from the vertex of one point directly to where it intersects the opposing side perpendicularly, that measurement would be approximately 250 feet.
The TR 3b seems to be the most common name used to describe this kind of thing after ‘black triangle’, and it is thought to be either an Alien Replica Vehicle, or a non alien derived military/government extremely classified vehicle.
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I remember reading I think on Wikipedia that the TR-3B was supposedly used to laser designate targets for the F-117 Nighthawk.
Apparently the TR 3A, a much smaller craft that is also triangular, but to my knowledge does not hover, and is more or less was an experimental test in stealth capabilities using more advanced methods than the F 117, that is what was most likely used for that purpose.
Also known as THAP, the Northrop development name for it. Much smaller than the tr 3b, more conventional flight capabilities.
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