Let’s Use xLS
xLS is a concept that has been developed by Airbus for A320 family, A330, A350, and A380 aircraft to ease the flight crew’s task of flying all straight approaches. It is now the standard for all the newly manufactured Airbus aircraft of these types.This article describes the xLS concept, its various functions, their advantages, and why xLS has been chosen as the standard for flying straight approaches on Airbus aircraft. It addresses operational and training considerations and highlights the benefits of using xLS. It also explains how to retrofit the xLS functions to take advantage of this innovation on earlier produced aircraft.
Lining Up with the Correct Glide Slope
The Instrument Landing System (ILS) is accurate and reliable, but the ILS antenna design today causes secondary glide slopes to appear above the primary glide slope. Flight crews must be aware of this phenomenon to prevent unwanted aircraft behavior during an ILS glide slope capture.This article explains the phenomenon of secondary glide slopes and their effect on aircraft systems. It provides guidance and examples that show how flight crews can prevent capturing a secondary glide slope. It also describes the protections on Airbus aircraft that limit the effect of an unintended secondary glide slope capture on the aircraft trajectory.