Above the clouds high over Delaware Bay on September 25, 1995, a little over a year after the crash of Flight 427, Les Berven saw something truly remarkable through the windshield of the Boeing 737 he was piloting. It was something few other pilots had ever seen before, and he likened it to experiencing “an art form.” TWo iridescent, sinuous, writhing, rotating tubes of smoke snaked parallel through the sky. They swooped, they curved, they looped, just like a roller coaster ride, and yet each one kept a preordained distance from the other. Elsewhere, in calmer air, the tubes tracked in the manner of a slowly sinking, wraithlike aerial railway.ut.
KeywordsRolling Motion Wake Vortex Atlantic City Flight Data Engine Noise
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