Luca Cistriani UAV Design Engineer Galileo Avionica Simulators and UAV Business Unit Via

UAV operations are examined from a performance and logistic flexibility point of view in order to set up requirements to be input for the multiobjective optimization of a two component simple rotation flap slotted airfoil with high thickness to chord ratio. The airfoil selected among a wide range of geometries optimizing the two design points has been investigated using CFD for stability at low Reynolds numbers and sensitivity to parameters like free stream turbulence and in-flight icing. Wind tunnel tests have been performed for the two dimensional wing section and for a complete UAV aircraft configuration in order to confirm theoretical previsions. Finally, flight tests of the prototype aircraft have been executed with results in good agreement with the previous design and test work. NOMENCLATURE A/C Aircraft ALSWT Alenia Low Speed Wind Tunnel A/P Autopilot AR Aspect Ratio CD Drag Coefficient CFD Computational Fluid Dynamics CMIC Continuous Maximum Icing Conditions C.I.R.A. Centro Italiano Ricerche Aerospaziali (Italian Aerospace Research Center) CL Lift Coefficient EAS Equivalent Air Speed EASA European Aviation Safety Agency G.A. Galileo Avionica GA-ASI General Atomics – Aeronautical Systems Inc. Cistriani, L. (2007) Falco UAV Low Reynolds Airfoil Design and Testing at Galileo Avionica. In UAV Design Processes / Design Criteria for Structures (pp. 3.3-1 – 3.3-24). Meeting Proceedings RTO-MP-AVT-145, Paper 3.3. Neuilly-sur-Seine, France: RTO. Available from: http://www.rto.nato.int/abstracts.asp. Report Documentation Page Form Approved OMB No. 0704-0188 Public reporting burden for the collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to a penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. 1. REPORT DATE 01 NOV 2007 2. REPORT TYPE N/A 3. DATES COVERED 4. TITLE AND SUBTITLE Falco UAV Low Reynolds Airfoil Design and Testing at Galileo Avionica 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S) 5d. PROJECT NUMBER 5e. TASK NUMBER 5f. WORK UNIT NUMBER 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) Dr.Ing. Luca Cistriani UAV Design Engineer Galileo Avionica Simulators and UAV Business Unit Via Mario Stoppani, 21 34077, Ronchi Dei Legionari (Gorizia) ITALY 8. PERFORMING ORGANIZATION REPORT NUMBER 9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) 10. SPONSOR/MONITOR’S ACRONYM(S) 11. SPONSOR/MONITOR’S REPORT NUMBER(S) 12. DISTRIBUTION/AVAILABILITY STATEMENT Approved for public release, distribution unlimited 13. SUPPLEMENTARY NOTES See also ADM202420., The original document contains color images.