Geschichte des Instituts

History – Road Map of Events: 1988-1992



1988

First in-flight simulation accomplished with the fly-by-wire/light aircraft VFW 614 ATTAS. ATTAS is the only European transport-type research aircraft with a flexible nonlinear model following flight control architecture (Dial-a-Model). Until 1998 flight experience of about 1200 hours of digital-electronic flight control has been accumulated.

 

In-flight Simulator VFW 614 ATTAS and Bavarian Ministerpresident (and private jet pilot) F.-J. Strauß testing the ATTAS sidestick (ILA 1988)
1989-1994

Member of transatlantic working group for up-grading the Military Helicopter Handling Qualities Specification (ADS-33). These activities provided the basis for the definition of the NH90 Handling Qualities Requirements (1993-1996).

 

1990

Finalization of the Handling Qualities Definition Document (HQDD) for the EF 2000 Eurofighter. This document was prepared by DLR, WTD 61, and IABG, to become the reference document for all multilateral government handling qualities acceptance flight testing.

 

German EF 2000 Eurofighter prototypes DA 1 and DA 5
1990-1994

Member of the US-German X-31A Integrated Flight Test Team. The technology demonstrator aircraft X-31A incorporates three-dimensional thrust-vectoring paddles to perform high-angle-of-attack maneuvering in the post-stall flight regime under operational conditions. Responsible for system identification and leading role in designing the separate effector excitation concept for generating physically plausible, reliable, and reproducible simulation models (cooperation with Dasa, RI, NASA, WTD 61).

 

US-German control technology and post-stall flight demonstrators X-31A
1990-1994

Member of European industrial team for Helicopter ACT (Active Control Technologies). DLR´s airborne simulator Bo 105 ATTHeS was used as national flight demonstrator for advanced flight control and sidestick technologies.

 

1990-1995

Annual test pilot training campaigns with DLR in-flight simulator Bo 105 ATTHeS at the French and English test pilot schools EPNER (Ecole du Personnel Navigant d´Essai et de Reception, Istres) and ETPS (Empire Test Pilot´s School, Boscombe Down).

 

EPNER students gathering with ATTHeS safety pilot Klaus Sanders (1990)
1991

Organization of the first International Symposium on In-flight Simulation at DLR Research Site in Braunschweig. Display and flight demonstration of In-flight Simulators ATTAS and ATTHeS (sponsored by AIAA, AHS, RAeS, AAAF, DGLR, and DLR). More than 100 national and international flight test engineers and pilots attended the meeting and shared with DLR the flight demonstrations of the airborne simulators.

 

B. Harper (Arvin/Calspan) during International Symposium on In-flight Simulation after demonstration flight with ATTAS
1991

ATTAS in-flight simulation of Hermes spaceplane. Flight demonstration for European astronauts Haigneré and Reiter.

 

Formation flight of DLR in-flight simulators ATTAS and ATTHeS
1992-1993

Instrumentation, flight testing, data-gathering, and model development for C-160 Transall Mission-Simulator accomplished in 15 months. Contract work for Thomson-CSF in cooperation with German Air Force Transport Squadron LTG 62 (Wunstorf) and German Forces Flight Test Center WTD 61 (Manching). A challenging single-engine take-off was demonstrated within the 80-hour flight test program and subsequently modeled for simulation purposes.

 

C-160 flight test team in front of aircraft at German Forces Flight Test Center WTD 61
1992

Unsteady rotor blade pressure measurements and complementary far field BVI (Blade-Vortex-Interaction) noise measurements gathered with ROTOS test rig in DNW. Nearly real-time pressure data analysis in the frequency domain accomplished with innovative TEDAS technology (Throughput Enhanced Data Acquisition System) developed by the Institute. The program was started at DLR (CP-ROT) and transformed to the European Program Helinoise (cooperation with DLR-Institutes of Design Aerodynamics, Aeroelasticity, and Fluid Mechanics, ECD, and Agusta).

 

1992

World Class Glider prototype assessment. The International Glider Commission of the Fédération Aéronautique Internationale (FAI) organized an international flight assessment. Seven glider prototypes coming from five different nations entered final World Class Glider evaluation. This Institute successfully provided world-unique flight test methodologies and instrumentation for the prototype evaluation of handling qualities and flight performance.

 

The champion World Class Glider prototype PW-5 (background) in formation flight with the second placed SZD-51-1 JUNIOR (both from Poland)

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