On the Influences of an Increased ILS Glide Slope on Noise Impact, Fuel Consumption and Landing Approach Operation

Abstract

This paper will show the theoretical influences of an increased glide slope to noise impact and fuel consumption. It will describe the risk of procedure changes made by the pilots to cope with a steeper descent. Furhermore, the development of a simulator study, the achieved results with regard to safety and operational aspects and the outcome of performance simulations for different aircraft types will be described. As a result glide slopes up to 3.2° could be realized without the necessity of flight procedural changes from performance and pilots view. Based on this fact the Frankfurt/Main Airport will conduct a test operation of a 3.2° ILS for noise purposes on the new north-west landing runway, which constructions is in progress.