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ASSEMBLY AND RIGGING

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
1. Why is it specially important that the leading edge of a wing and the upper surface of the forward half of the wing be kept free of dents and any dirt or contamination?   show
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show The acute angle that is formed between the chord line of an airfoil and the direction of the air that strikes it.  
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3. What are the four basic forces that act on an aircraft in flight?   show
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show The acute angle that is formed between the chord line of an airfoil and the longitudinal axis of the aircraft on which it is mounted.  
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show The friction of the air flowing over the surface.  
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6. Name the three axes of an airplane and the control that rotates the airplane about each of its three axes.   show
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show Downward.  
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8. What is the function of lateral dihedral in the wings of an airplane?   show
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show Stall strips distort the air flowing over the top of the wing in the root area at high angles of attack. They cause the root of the wing to stall out at a lower angle of attack than the portion of the wing ahead of the ailerons.  
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show A servo tab produces an aerodynamic force on a control surface that aids the pilot in moving the surface.  
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show Slotted flaps can be deflected to a greater angle than other types of flaps before the airflow over their surface breaks away.  
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12. What is the purpose of a movable slat in the leading edge of some airplane wings?   show
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13. What causes dissymmetry of lift produced by the rotor of a helicopter?   show
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show The thrust from the auxiliary rotor on the tail of the helicopter counteracts the torque produced by the main rotor.  
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15. Why is it important that the leading edge of a supersonic airplane wing be kept free from dents and damage?   show
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show Vortex generators pull high-energy air down to the surface of the wing and keep shock-induced separation from occurring.  
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17. Why are the control cables of large airplanes normally equipped with automatic tension regulators?   show
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show If the blades are not in track, vertical vibration can develop.  
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19. Why is it important that any repairs to the control surfaces of an airplane not change their original condition of balance about their hinge line?   show
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show In the Type Certificate Data Sheet for the airplane  
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Created by: Aima2019
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