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Verification of a Flying Wing Handling Qualities Analysis by means of In-Flight Simulation

Ehlers, Jana and Niedermeier, Dominik and Leißling, Dirk (2011) Verification of a Flying Wing Handling Qualities Analysis by means of In-Flight Simulation. AIAA Atmospheric Flight Mechanics Conference 2011, 8.-11. August 2011, Portland, Oregon, USA.

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The assurance of appropriate handling qualities represents a critical aspect for the development of a flying wing. This paper presents an analysis and evaluation of the handling qualities of a flying wing configuration for 750 passengers. Its flying qualities are evaluated by applying analytical handing qualities criteria. These criteria are however developed for conventional airplanes and imply that the longitudinal and lateral motion of the aircraft can approximately be considered as separate motions. As the considered flying wing configuration does not fulfill the prerequisite of an approximately decoupled lateral and longitudinal motion the applicability of the analytical criteria is not guaranteed and the additional evaluation of the handling qualities by pilots is absolutely required for such an aircraft. For this purpose an in-flight simulation is carried out with the DLR research aircraft ATTAS which is able to simulate other airplane configurations during flight. It allows analyzing the flight dynamics of the flying wing under real flight conditions and an evaluation of its handling qualities by test pilots. The flight tests are performed with the original baseline-configuration of the flying wing and a modified configuration with active control which is examined to evaluate the potential of flight control augmentation to improve the handling qualities. The maneuvers of the flight tests focus on the examination of the dynamics of the flying wing during turns. Thanks to the means of in-flight simulation it is possible to evaluate the unusual coupling of the lateral and longitudinal motion of the aircraft. The analyses permit to point out some major deficiencies in the handling qualities of the considered flying wing.

Item URL in elib:https://elib.dlr.de/71194/
Document Type:Conference or Workshop Item (Paper)
Title:Verification of a Flying Wing Handling Qualities Analysis by means of In-Flight Simulation
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ehlers, Janajana.ehlers (at) dlr.deUNSPECIFIED
Niedermeier, Dominikdominik.niedermeier (at) dlr.deUNSPECIFIED
Leißling, Dirkdirk.leissling (at) dlr.deUNSPECIFIED
Date:10 August 2011
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:In-Flight Simulation, Flying Wing, Handling Qualities, Coupling of Longitudinal and Lateral Motion
Event Title:AIAA Atmospheric Flight Mechanics Conference 2011
Event Location:Portland, Oregon, USA
Event Type:international Conference
Event Dates:8.-11. August 2011
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L - no assignment
DLR - Research theme (Project):L - no assignment (old)
Location: Braunschweig
Institutes and Institutions:Institute of Flight Systems > Flight Dynamics and Simulation
Deposited By: Schwithal, Jana
Deposited On:01 Nov 2011 15:59
Last Modified:01 Nov 2011 15:59

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