上海文夏大学 SHANGHAI JIAO TONG UNIVERSITY HALE UAV DESIGN 12.3. Detail parameter of landing gear ...-64- 12.4. Full-aircraft center of gravity-6- 13. Aerodynamic performance (Raymer's book).......-68- 13.1. 13.1.1.Lift curve slope. -68- 13.1.2. Maximum lift(clean)… .-69- 13.1.3.Angle of attack for maximum lift.... -69- 13.2.Drag. .-71- 13.2.1.Parasite (ero-lift)drag.-71- 13.2.2.Drag due to lift (induced drag).......... -74- 13.2.3.The total drag-75- 13.3. Lift drag ratio… -76- 13.4.Summary of aerodynamic characteristic. .-76- 14. Flight performance......... .-77- 14.1.Field performance........................ …-77- 14.2. Cruise performance...-79- 14.3. Static ceiling… …-80- 14.4. Summary of flight performance-81- 15. -82- 15.1. The method for analyzing Lcc and calculation.-82- 15.2. The composition of working time and cost in LAND DAPCA IV model...............-83- 15.3. Total operating cost -85- 15.3.1.Fuel c0st........ -86- 15.3.2.Maintenance cost.... …-86- 16. Conclusion and acknowledge...... .-88- 16.1. Conclusion .-88- 16.2. Acknowledge............. .-88- 17. Reference......... .-89- -5-HALE UAV DESIGN - 5 - 12.3. Detail parameter of landing gear ....................................................................... - 64 - 12.4. Full-aircraft center of gravity.............................................................................. - 66 - 13. Aerodynamic performance (Raymer’s book) ............................................................. - 68 - 13.1. Lift ...................................................................................................................... - 68 - 13.1.1. Lift curve slope ........................................................................................... - 68 - 13.1.2. Maximum lift (clean).................................................................................. - 69 - 13.1.3. Angle of attack for maximum lift................................................................ - 69 - 13.2. Drag .................................................................................................................... - 71 - 13.2.1. Parasite (zero-lift) drag............................................................................... - 71 - 13.2.2. Drag due to lift (induced drag) ................................................................... - 74 - 13.2.3. The total drag ............................................................................................. - 75 - 13.3. Lift drag ratio...................................................................................................... - 76 - 13.4. Summary of aerodynamic characteristic............................................................ - 76 - 14. Flight performance..................................................................................................... - 77 - 14.1. Field performance.............................................................................................. - 77 - 14.2. Cruise performance............................................................................................ - 79 - 14.3. Static ceiling ....................................................................................................... - 80 - 14.4. Summary of flight performance......................................................................... - 81 - 15. Economics .................................................................................................................. - 82 - 15.1. The method for analyzing LCC and calculation .................................................. - 82 - 15.2. The composition of working time and cost in LAND DAPCA IV model............... - 83 - 15.3. Total operating cost............................................................................................ - 85 - 15.3.1. Fuel cost ..................................................................................................... - 86 - 15.3.2. Maintenance cost....................................................................................... - 86 - 16. Conclusion and acknowledge..................................................................................... - 88 - 16.1. Conclusion.......................................................................................................... - 88 - 16.2. Acknowledge...................................................................................................... - 88 - 17. Reference ................................................................................................................... - 89 -