ASSEMBLY AND RIGGING
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| show | The air flowing over this portion of the wing must be smooth to produce the maximum amount of lift. If the surface is rough or dirty, the air flow will be distorted and lift will be lost.
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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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| show | Lift, drag, thrust, and gravity.
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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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| 5. What causes parasite drag on an airplane? | show 🗑
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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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| show | Lateral dihedral gives the aircraft roll stability, or stability about the longitudinal axis.
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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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| 11. Why do most high-performance aircraft use slotted flaps? | show 🗑
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| show | When the angle of attack becomes high, The movable slat automatically moves out of the wing and forms a duct which forces the air back over the upper surface of the wing. This delays the stall.
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| show | The forward speed of the helicopter produces dissymmetry of lift. The rotor blade which is traveling forward as the helicopter is flying produces more lift than the blade that is traveling rearward.
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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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| show | A sharp leading edge allows an oblique shock wave to attach to the airfoil in supersonic flight. If the leading edge is dented or blunt, a normal shock wave will form and slow the air immediately behind it to a subsonic velocity.
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| 16. What is the purpose of vortex generators on the wing of a high-speed airplane? | show 🗑
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| show | The automatic tension regulators keep the cable tension constant as the dimensions of the aircraft change.
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| show | If the blades are not in track, vertical vibration can develop.
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| show | A control surface that is out of static balance can flutter in certain flight conditions. Flutter normally tears the surface off the aircraft.
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| show | In the Type Certificate Data Sheet for the airplane
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