What happens when your propeller falls off in mid-flight? Just ask Aspen pilot Barry Cox. Allison Sherry reports: “Suspended at 16,000 feet in an airplane with no power, no propeller and motor oil streaming across the front windshield, 60-year-old Barry Cox remembered that panic wasn’t going to do much good. The Aspen man simply kept his eyes on the knot speed of his 1988 Piper Malibu, floating above the Roaring Fork Valley about 12 miles east of Aspen.”