1. DLR, German Aerospace Center, 38108 Braunschweig, Germany
2. DLR, German Aerospace Center, 37073 Göttingen, Germany
3. Sandia National Laboratories, Albuquerque, New Mexico 87123
4. von Karman Institute for Fluid Dynamics, 1640 Rhode-St-Genèse, Belgium
5. Japan Aerospace Exploration Agency, Kakuda, Miyagi 981-1525, Japan
6. VirtusAero LLC, Brooklyn Park, Minnesota 55443