填空题 Directional stability is achieved on an airplane by the use of the ____. Page 31

填空题 The layer of our atmosphere that is typified by the temperature of the air remaining constant as the pressure continues to drop is called the ____. Page 7

填空题 The principle of physics that states that if the total energy in the air moving over an airfoil remains constant, any increase in its velocity will result in a corresponding decrease in its pressure, is called ____ principle. Page 8

填空题 The angle of attack at which the air no longer flows smoothly over the top of the wing and the wing stalls, is called the ____ angle of attack. Page 14

填空题 Lift produced by the reaction caused when a mass of air is deflected downward is called ____ lift. Page 5

填空题 The lowest layer of our atmosphere is called the ____. Page 7

填空题 Five factors that affect aerodynamic lift are:

a. ____

b. ____

c. ____

d. ____

e. ____ Page 11

填空题 Lift produced by a body displacing a greater weight of air than its own weight is called ____ lift. Page 5

填空题 The type of altitude measurement used to determine the amount of lift produced by an airfoil or the performance of an aircraft engine is ____ altitude. Page 8