The Cirrus stall-crash has resulted in related discussions about the relative safety of steep bank angles while descending. Paul says step bank angles can be made with relative impunity from stalls if descending. With due respect I join the dissenting side.
In November 1945, a British jet fighter the Gloster Meteor set a new official world speed record of 606.25 mph. It was two years later before the sound barrier was broken by an American aircraft the Bell X-1. Test pilot 'Chuck' Yeager named the aircraft 'Glamorous Glennis' after his wife.
Please try again later. Sound travels at about 760 miles per hour, or 340 meters per second and about 661 knots on an average day at sea level. And sometimes, you can almost see it. Going close to that speed through air can cause some unusual visual effects. This compiled footage includes F-14s, standard and Blue Angels F-18s, plus the SR-71 and an Atlas Rocket launch. AVweb contacted sources at NASA to research the phenomena.