In the early phase of the EJ200 project (the engine for the Eurofighter 2000) I was for several years head of the international working group for performance prediction and engine test analysis. Presently, I am  a consultant within the engine performance department at MTU.

Furthermore, I am a member of a RTO AVP Working Group which prepares a report entitled "Performance Prediction and Simulation of Gas Turbine Operation". RTO AVP is an acronym for the Research and Technology Organisation of NATO, Applied Vehicle Technology Panel. RTO AVP is a successor of  the Propulsion and Energetics Panel of the former AGARD organisation. (AGARD = Advisory Group for AerospaceResearch and Development).

I am also a member of the SAE In-Flight Propulsion Measurement Committee E33 which reviews industry methods and state-of-the-art on in-flight thrust measurement/ prediction and its uncertainty.

In the AGARD lecture series 183, "Steady and Transient Performance Prediction of Gas Turbine Engines", I was one of the authors.

A few years ago the AGARD Working Group 24, of which I was a member, published the Advisory Report No. 332, "Recommended Practices for the Assessment of the Effects of Atmospheric Water Ingestion on the Performance and Operability of Gas Turbine Engines".

During the 1995 ASME conference in Houston,TX, USA I presented a paper about the program GasTurb, called "Advanced User-Friendly Gas Turbine Performance Calculations on a Personal Computer", reference 95-GT-147. The calculations for that paper were done with the DOS program GasTurb 6.0.

The paper "How to Get Component Maps for Aircraft Gas Turbine Performance Calculations", reference 96-GT-164 was presented at the 1996 ASME conference in Birmingham, England. It describes some background to the component map preparation programs Smooth_C and Smooth_T.

At 1997 ASME conference in Orlando I have presented the paper "Some Applications of the Monte Carlo Method to Gas Turbine Performance Simulations", reference 97-GT-48. All calculations for this paper have been performed using GasTurb 7.0 for Windows.

Also at the 1998 ASME conference in Stockholm I havel presented a paper which was prepared with the help of GasTurb. The title is "Gas Turbine Cycle Design Methodology - A Comparison of Parameter Variation with Numerical Optimization", reference 98-GT-343. This paper was also published in the Journal of Engineering for Gas Turbines and Power in January 1999.

In February 1999 the RTO Meeting Proceedings 8 were published (Reference RTO-MP-8, AC/323(AVT)TP9). It contains the paper "A mixed flow turbofan afterburner simulation for the definition of reheat fuel control laws" by Joachim Kurzke and Claus Riegler.

"A New Compressor Map Scaling Procedure for Preliminary Conceptional Design of Gas Turbines", reference 2000-GT-0006 by Joachim Kurzke and Claus Riegler. This paper got the Aircraft Engine Comittee Best Paper Award during the ASME conference 2001 in New Orleans.