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Graph of altitude/speed region envelope for Lockheed U-2 depicting coffin corner. Coffin corner (also known as the aerodynamic ceiling [1] or Q corner) is the region of flight where a fast but subsonic fixed-wing aircraft's stall speed is near the critical Mach number, making it very difficult to keep an airplane in stable flight.
A perfect coffin corner kick is one that goes out of bounds just before either orange pylon located in the front of the end zone. The punter tries to place the ball so that it lands out of bounds or is downed on the field by another member of the kicking team anywhere inside the 5-yard line without touching the goal line, thus forcing poor ...
This seventh position was usually flown by the least experienced crew in the squadron and was vulnerable to fighter attack, so perilous that it was commonly called the "coffin corner" [18] or "Purple Heart corner". [19] The second unit of the group formation was configured identically, except that its boxes were named Dog, Easy, and Fox.
This narrow window is called the "coffin corner", [42] [43] because breaching either limit was likely to cause airflow separation at the wings or tail. [44] For most of the time on a typical mission the U-2 was flying less than five knots (6 mph; 9 km/h) above stall speed.
The Coffin Corner is a semimonthly magazine devoted to topics in professional football history. PFRA members publish their research findings in the articles, regardless of prior writing experience. PFRA members publish their research findings in the articles, regardless of prior writing experience.
English: Graph of Speed vs. Altitude for U-2 high-altitude airplane, region depicting Coffin Corner. Stall and Mach limits for one particular gross weight clarified in color. Note that the operational envelope gets narrower if the plane is more heavily loaded.
Early in his career, he earned the nickname "Coffin Corner" because of his ability to aim his kicks near the corner of the playing field where the end zone and out-of-bounds lines meet. Due to his uncharacteristic speed (for a punter) defenses often lined up to guard against a fake punt because he was a threat to run for a first down.
Coffin corner may refer to: Coffin corner (aerodynamics), an unstable combination of speed and altitude; A position in a bomber formation combat box; Coffin corner (American football), a strategy used by a punter in American football; The Coffin Corner, a magazine published by the Professional Football Researchers Association