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WE VIBRATE - RE-PUSHING THE ENVELOPE (G550 HALO TGI FLIGHT TESTING)

Burwitz, Sebastian (2014) WE VIBRATE - RE-PUSHING THE ENVELOPE (G550 HALO TGI FLIGHT TESTING). In: European 46th SETP and 25th SFTE Symposium. Society of Flight Test Engineers - European Chapter. European 46th SETP and 25th SFTE Symposium, 15.-18. Jun. 2014, Lulea, Schweden.

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Abstract

Abstract: DLR's High Altitude and Long Range Research Aircraft (HALO), a heavily modified Gulfstream G550 (GV-SP), is a high-performance platform. The baseline HALO modifications of the G550 enable DLR's and partnering scientists to equip the aircraft with various pieces of hardware for probing and analyzing the surrounding atmosphere 'in-situ'. A key role for in-situ measurements plays DLR's standard Trace Gas Inlet (TGI), a structure that enables probing the atmosphere outside the aircraft's boundary layer. Due to the new and previously untested design of the TGIs, the high number of installable TGIs and their design derivatives (~ 20 pieces over the whole fuselage) and the resulting number of combinations, DLR chose a careful build-up approach to first assess the two baseline TGI designs in flight at different fuselage positions, followed by a step-by-step testing of multiple combinations of TGI designs, design derivatives and fuselage positions, slowly increasing the complexity of the setup. The achieved main goal of the flight tests was certification of the inlets to supplemental type certificate (STC) status. The flight test program encountered vibration issues during the build-up procedure resulting in the need of close vibration monitoring and a partly redesign of the TGIs trailing edge. The extensive testing also resulted in the development of a simple vibration measuring technique and an efficiency increase of the flight test methods.

Item URL in elib:https://elib.dlr.de/130324/
Document Type:Conference or Workshop Item (Speech)
Title:WE VIBRATE - RE-PUSHING THE ENVELOPE (G550 HALO TGI FLIGHT TESTING)
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Burwitz, Sebastiansebastian.burwitz (at) dlr.dehttps://orcid.org/0000-0003-1143-5002
Date:18 June 2014
Journal or Publication Title:European 46th SETP and 25th SFTE Symposium
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Publisher:Society of Flight Test Engineers - European Chapter
Status:Accepted
Keywords:HALO, G550, GV-SP, TGI, Gulfstream G550 HALO
Event Title:European 46th SETP and 25th SFTE Symposium
Event Location:Lulea, Schweden
Event Type:international Conference
Event Dates:15.-18. Jun. 2014
Organizer:Society of Flight Test Engineers - European Chapter, Society of Experimental Test Pilots
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
Location: Oberpfaffenhofen
Institutes and Institutions:Flight Operations > Flight Facility Oberpfaffenhofen
Deposited By: Burwitz, Sebastian
Deposited On:07 Jan 2020 09:52
Last Modified:07 Jan 2020 09:52

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