Aircraft Airfoils and Angle of Incidence
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Questions and Answers

What is the consequence of having an airfoil that offers little wind resistance but lacks lifting power?

  • The aircraft will experience reduced drag.
  • The aircraft will take off the ground easily.
  • The aircraft will struggle to take off the ground. (correct)
  • The aircraft will fly slowly at high altitudes.

    • What is the angle of incidence when the leading edge of the wing is lower than the trailing edge?

  • Negative (correct)
  • Variable
  • Positive
  • Neutral

    • Which line forms one side of the angle that ultimately forms the Angle of Attack (AOA) on an airfoil?

  • Center of pressure line
  • Chord line (correct)
  • Relative airstream line
  • Longitudinal axis line

    • What is the purpose of winglets on an aircraft's wingtip?

    <p>Reduce induced drag</p> Signup and view all the answers

    How do wing fences contribute to an aircraft's performance?

    <p>Prevent the entire wing from stalling at once</p> Signup and view all the answers

    What distinguishes a canard wing aircraft from a conventional one?

    <p>Main lifting surfaces are behind the canard wing</p> Signup and view all the answers

    What is the main reason for the difference in pressure between the upper and lower surfaces of a wing?

    <p>Greater curvature of the wing profile on the top surface</p> Signup and view all the answers

    How does the airflow over the top surface of a wing differ from that under the wing?

    <p>It moves at a greater velocity</p> Signup and view all the answers

    Why does an aircraft wing experience lift according to Bernoulli's Principle?

    <p>Decreased pressure on the upper surface compared to the lower surface</p> Signup and view all the answers

    How can lift be increased on an aircraft's wing?

    <p>By increasing the angle of attack (AOA)</p> Signup and view all the answers

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