Aircraft accident investigators have a exceptional moment span for a especially insidious kind of accident--CFIT, or dominated air travel into terrain. It happens when human mistake in the cockpit, within the traffic command tower, or within the air travel planning procedure in appearance soars a flawlessly good aeroplane right into the ground. (Nisley, 2006) In the beyond 40 years, space air travel has came across all kinds of failure modes. Propulsion schemes have leaked and exploded. Power schemes have short-circuited. Observation devices have failed towards task or possess been sharp in incorrect directions. But until this ...