1. School of Aerospace Engineering, Georgia Institute of Technology, 270 Ferst Drive, Atlanta, GA 30332-0150, USA,
2. School of Aerospace Engineering, Georgia Institute of Technology, 270 Ferst Drive, Atlanta, GA 30332-0150, USA
3. Dipartimento di Ingegneria Aerospaziale, Politecnico di Milano, Via La Masa 34, Milano 20156, Italy