With a commentary by Don Bateman (MR EGPWS)
IMPETUS
FAR 25.113 (Takeoff Distance and Takeoff Run) spells out with great precision the exact requirements for performance (screen heights, V1 etc) - however you should know that actual take-off performance "monitoring" in real time is a totally inexact science. That is why a take-off performance monitor would enhance safety by annunciating any acceleration discrepancy. But now the recent accident to an A340-300 at Toronto has highlit a similarly inexact situation in the approach and landing evolution. Is a Landing Performance Monitor technologically feasible? First, we shall examine the problem.
Would this be a practical and useful proposition?