Aerodynamics 84 Questions And Answers

Steady straight flight - ️️There can be no unbalanced forces Constant airspeed - ️️Thrust equals drag Constant altitude - ️️Lift equals weight Angle of attack - ️️Acute(small) angle between the chord line of the airfoil & the direction of the relative wind True - ️️When the airspeed is low, the AOA must be relatively high to maintain balance between lift & weight True - ️️When thrust is more than drag the airplane accelerates True - ️️When drag is more than thrust the airplane slows down Coordinate AOA - ️️When thrust is increased AOA must be decreased to maintain straight & level flight. The opposite is true when thrust is decreased Skin Friction Drag - ️️The aerodynamic resistance due to the contact of moving air with the surface of an aircraft True - ️️The higher the AOA the more induced drag