Message posted by Q-nimbus (Member since 08/20/2020) on March 07, 2023 at 23:41:53 PST:
These donuts-on-a-rope contrails are very common and in most cases are caused by airliners. Just saw one a few days ago over the Dolomites in Italy.
In Reply to: Donuts-on-a-Rope contrails were made by SR-71s posted by Vahe Demirjian on March 04, 2023 at 19:07:48 PST:
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