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Meeting	ACGS Committee Meeting 124 - Williamsburg, VA - October 2019
Agenda Location	4 GENERAL COMMITTEE TECHNICAL SESSION 4.1 Government Agencies Summary Reports 4.1.1 DLR 4.1.1.1 DLR
Title	DLR
Presenter	Dominik Niedermeier
Available Downloads*	presentation
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Abstract	Dominik Niedermeier Group Leader Cognetics / ISTAR Design Team The presentation gives an overview of selected recent research activities at DLR. LNAS Some years ago the DLR developed the first version of the so-called Low Noise Augmentation System (LNAS). This pilot assistance system is integrated into the Electronic Flight Bag software and supports the crew during the approach in order to optimize the timing of configuration changes. This optimization allows an idle thrust setting down to the 1000ft-gate resulting in noise and fuel consumption reduction. The system is further developed in collaboration with Swiss partners, such as Skylab, EMPA, Swiss Airlines, Zurich Airport, Swiss Air Force and Skyguide. To apply LNAS to Zurich Airport approaches the algorithm had to be extended in order to handle Continuous Decent Approaches (CDA). The presentation briefly describes this extension and gives an overview of the flight tests that recently took place in Zurich using the DLR research aircraft A320 ATRA. ISTAR DLR’s former fixed wing VSS/IFS research aircraft was retired in 2012. For that reason DLR purchased a Falcon 2000LX aircraft in April 2018 called ISTAR. ISTAR shall be transformed to an VSS/IFS research aircraft in three modification steps. The presentation shows the current status of the project and describes the recent activities of the so-called ISTAR Joint Design Team. The Joint Design Team is composed of DLR and Dassault engineers designing the required flight control modifications to implement an experimental Fly-by-Wire system. Specifically, an overview of the experimental system setup and of the flight control system operating modes is presented. LN-ATRA The task of the project LN-ATRA is to assess the real potential of current research state-of-the-art noise mitigation retrofit solutions in flight tests. A short overview of the mitigation measures is included in the presentation.