aerodynamics

  1. Common research model for supersonic transport research?

  2. Why is the ratio maximum range speed/maximum endurance speed the same for any airplane?
  3. How do engineers make sure UAV don't land on their front propeller?

  4. Beside payload size, what precise factors are considered to choose the fuselages shape?
  5. Does a plane have more lift while flying in a cloud? (All other things equal...)

  6. Why do Airbus aircraft typically have less wing flex than Boeing aircraft?

  7. Equation of motion for flow in laminar boundary layer in cylindrical coordinates

  8. Where is the best centre of gravity for planes like the Berkut 360?

  9. Does the aerodynamic center move when flaps and slats are deployed?
  10. Why do some aircraft have symmetrical tip airfoils while others do not?
  11. What is the typical value of maximum lift coefficient for aerobatic aircraft?
  12. What effects to controllability are there when the rear doors are opened on a KC-130?

  13. How does hovering in ground effect (IGE) reduce drag?
  14. What is this trio of fins at the back of a T-38?

  15. For a rotor in vertical autorotation, what is the relation between pitch, vertical speed and rpms?
  16. Why do the missiles on an F-16 point slightly down?

  17. What is the minimum runway length for a F4E Phantom II with folded wings?
  18. Documentation about "drag stabilized flying wings using non-reflex airfoils"?

  19. Why is the use of tail-down force so common?

  20. Why did the DC-3 have wing sweep?

  21. Would an aircraft with no ailerons, no elevators and no rudders be safely flyable?
  22. Can asymmetric thrust occur for Single engine airplane at idle power during stall practice?
  23. Why does some "Fighter Jets" have "Pitch changers" on the front?

  24. Do helicopters use more fuel when hovering?

  25. Why doesn’t the minimum drag point meet the point at the best Cl/CD polar?
  26. What type of supersonic intake does the Dassault Rafale fighter jet have?

  27. Is it possible to maintain horizontal flight with the angle of attack above critical value by increasing speed?

  28. Which supersonic airplanes use Pitot Air intakes?

  29. Why do many fighter jets have double vertical stabilizers?

  30. What is hinge moment?

  31. Does contra-rotating vs regular propellers, have any effect on icing?

  32. How does one calculate the taper ratio of a compound wing?

  33. Is there any way to estimate the weight difference between a trimmable horizontal stabilizer and a fixed tailplane?

  34. Can variable incidence wings replace ailerons?
  35. Does the downwash created by induced drag increase or decrease lift?

  36. Would it be possible to build a "rocket" using a series of ducted fans?
  37. Can a supersonic aircraft have winglets?

  38. Is there any equation to bind velocity, thrust and power?

  39. Is there a physical argument for the Kutta-Joukowski theorem?
  40. Is inverted flight possible under these conditions?
  41. Why does the wing root of the A330 have a pronounced twist?

  42. How does the lift coefficient of an A380 change when flaps are extended?

  43. How are Cd and Cl calculated from Cp data?

  44. Why do helicopters not roll over when flying forwards?

  45. What's the shape and place of the tip vortex in a propeller, depending on propeller sense of turning?

  46. What amount of lift would be created in the fallacious "lift from equal transit time" theory?
  47. How to scale the data of a wing aspect ratio to correspond to the case of another aspect ratio?

  48. Could a spinning disk withstand higher speeds in Earths atmosphere better than a fixed nose aircraft?
  49. What is that invisible bump in the air called that occurs after completing a 360 degree turn?

  50. If a helicopter's tail-rotor fails, is it possible perform an emergency landing?
  51. How do conventional and T-tails differ?
  52. What aircraft can make these sharp 90-degree turns?
  53. How do wings generate lift?
  54. How do active blades work on helicopters?
  55. Does a helicopter's boundary layer have different properties that are caused by the rotation? How does this affect stability of the helicopter?

  56. In Polikarpov I-153, Were the gulled wings very important?

  57. Why were 'business jet' airliner designs so popular in the past?

  58. How does a ring paper airplane fly for a long distance?

  59. How can leading edge separation bubbles be prevented?
  60. Which are some planes shaped like an inverted wing?
  61. Is it possible for a modified hang glider to land safely coming from orbit?
  62. What are the advantages and disadvantages of an oblique wing over a swing wing?

  63. What happens after a rudder hardover?

  64. What is the airflow across and below an elevator?

  65. What are the factors required to estimate the minimum required power for an experimental aircraft of a specific mass?

  66. When the angle of attack is increased does the air flowing below it slow down
  67. What does the 'hp' rating actually signify, with respect to an aircraft engine?
  68. What aerodynamics forces are acting on a jet fighter during slow flight demonstration?

  69. How to draw NACA 6-Series Airfoils?

  70. Would it be more effective to increase the length or chord of a rotor blade for better performance?

  71. For a flying wing airfoil, which AOA is to consider when selecting Cl?

  72. If engines are closer to the wing (or in the wing) does it increase efficiency

  73. would a dimpled heat shield reduce heat transfer during reentry?

  74. What causes the reduction in speed across the shockwave?

  75. How do I achieve a lower stall speed, and capture potential CLmax without enough elevator control authority?
  76. Is lift created by air downwash?

  77. Does the Reynolds number on a smaller model need to match the one of the original aircraft?

  78. Did the F-8 have a stall speed of 1.6x its landing speed?

  79. Why is the take off speed and distance reduced by head winds?
  80. Does a sudden drop of the velocity of the headwind affect the airspeed by lowering it?

  81. When were airbrakes used for the first time in aviation?

  82. What are the benefits of raked wingtips over tapered wingtips?
  83. What are the merits of an inlet cone/spike/centerbody vs. a 2D inlet?

  84. What is the drag induced by a high bypass jet engine on an airliner?

  85. What are the advantages of twin-fuselage aircraft?
  86. What are the effects of shockwaves on normal and supersonic aircraft?

  87. Why would a canard wing be more prone to icing than a stabilizer?
  88. Does turbulent flow have boundary layer ? Does separated flow have boundary layer?

  89. How does the aspect ratio of a wing impact its lift?

  90. Why does the elliptical wing have the lowest drag?

  91. Why stall on 2D faster than 3D?
  92. How can I calculate the optimum loiter airspeed for an aircraft?

  93. What are the dynamic stability properties of an aircraft with wings exactly at the vertical CoG?

  94. What is the performance of a flat plate wing?

  95. How do 3d panel methods model wake-surface interaction?

  96. How can you calculate the required tailplane force to ensure steady state flight?

  97. Does the wifi uplink antenna affect aerodynamics or efficiency?
  98. How the antenna on the B737 Max fuselage doesn't disrupt the airflow?

  99. Is it possible to fly horizontally with zero angle of attack?
  100. How to find the measurement of how far Tail plane to Center of gravity of the aircraft?