Sometime around the early 1990 s the people who get excited about such things got excited about donuts on a rope contrails which many assumed were the results of pulse detonation engines powering hypersonic aurora spyplanes.
Donuts on a rope contrail.
Or black programs may notice that the center section of the contrail is extremely similar to the famous doughnuts on a rope contrail.
There are many photos of strange contrails shown.
Donut on a rope contrails are they made by normal jet aircraft or secret black programs.
Well after studying the now famous contrail photographed by steve douglass some years ago now i decided to see if these vapour trails were made just by secret aircraft or possibly normal jet engined aircraft such as fast jets and airliners.
More than a decade ago cotton ball like contrails were spotted and photographed periodically by observers throughout the u s but reports had dropped off sharply in recent years aw st may 11 1992 p.
Aurora was a rumored mid 1980s american reconnaissance aircraft there is no substantial evidence that it was ever built or flown and it has been termed a myth.
Donuts on a rope contrails produced by an unknown high speed high altitude aircraft have been reported throughout the u s.
Its distinctive donuts on a rope contrail was spotted recently above utah s wasatch mountains.
And europe suggesting that the classified pulser is no longer.
They clearly are not the same contrail then i read an article i think on wikipedia about aurora.
Of course it turned out that these contrails if you actually traced them to their sources were being left.
I was browsing ebay and a model sr 91 aurora showed up.
I went to the web looking for donuts on a rope.
Aurora spy plane ion propulsion.