December 2017 Issue

‘Say Approach Request’

Choosing between a runway’s ILS and LPV approaches can be more complicated than simply which has the lowest minima.

In less than 25 years, the “miracle” of GPS has transformed how even the smallest and least expensive aircraft navigates. Thanks to the wide area augmentation system (WAAS) in the U.S. and similar technologies deployed in other countries, GPS is more accurate, more reliable and more repeatable than what came before. If you need proof, look no further than comparing the faithful instrument landing system (ILS) to its WAAS GPS-based equivalent, the LPV (localizer performance…

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