10:00 Welcome address and introduction (ICAO) 10:15 Presentation of the workshop and its objectives (AWOG chair) 10:30 Objectives of the study conducted by several ANSP (DFS) 10:45 A380 Presentation (AIRBUS) 11:00 Coffee break 11:15 Statement of the issue (ILS sensitive and critical areas definition and current practices) (LVNL) 11:30 Methodology used and typical test case description (normal and worst case) (ENAC) 12:00 Lunch break

13:30 Test results at Frankfurt (DFS) 14:00 Test results at Toulouse (DSNA) 14:30 Test results at London (NATS) 15:00 Conclusions and recommendations 15:15 Coffee Break 15:30 Open Debate 16:30 Preliminary workshop conclusions (AWOG Chair) 17:00 Closing of the workshop

Workshop background (1/3) ● The future operations of new large aircraft (e.g. A380) in Low Visibility Conditions have raised some concerns in past five years  Are the current practices based upon the vacation of ILS sensitive area before a landing still valid with these new aircraft?  Are wider sensitive areas necessary?  Are existing propagation signal model appropriate?

Workshop background (2/3) ● Several studies have been conducted to assess the effect of such new large aircraft on the ILS signal performances ● They were based upon various simulation models and the results were not necessarily coherent ● There is a general agreement on the fact that a sophisticated simulation model should provide results closer to the reality ● This situation has generated a lot of debate regarding the validity of simple simulation model to really assess those impact and the fact that such validity could be scenario dependant

Workshop background (3/3) ● As a result of the concerns expressed before, a common project has been launched by the several aviation stakeholders to address this issue by conducting several measurement campaigns with an A380 ● The partners are: ANSPs (DFS, DSNA, LVNL and NATS), Airport operators (Fraport, BAA), Airbus and several experts in simulation tools and methods ● The results of this project are presented in this workshop

Workshop objectives ● To provide a first assesment of the impact of new large aircraft on ILS sensitive areas based upon field measurements ● To provide results of correlation between field measurements and simulations results to validate propagation and A380 models