Message posted by oldthudman on February 26, 2020 at 16:15:05 PST:
Not mysterious...A common sonic boom!..Up until the late 60's sonic booms were very common...Then they got into this noise abatement business. Not sure if it was a law (congress) or an FAA rule. In any case it stopped all the fun.
In Reply to: Mysterious loud boom reported in Prescott posted by Viper on February 23, 2020 at 15:36:58 PST:
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