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Principles of flight_chapter_4

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Transcript

  • 1. Principles of Flight Chapter 4 - Stalling
  • 2. Stalling
    • When the angle of attack is too great the airflow over the wing cannot meet the airflow under the wing.
  • 3. Stalling Angle
    • Once the air is unable to pass over the wing smoothly lift is lost.
    • The stalling angle varies but it is usually about 15 °
    • The wing will always stall when it reaches the stalling angle
  • 4. Stalling Speed
    • Data can be found in the ‘Pilot’s Notes’ Book.
    • Various Factors Effect Stalling Speed
    • LOWER STALLING SPEED IS BETTER
    • Weight – Extra Weight increases stalling speed
    • Power – Higher the power, lower the stalling speed
    • Flaps lowered reduce stalling speed
    • Ice forms on the wing increasing stalling speed
    • Damaged wings increase stalling speed
    • Manoeuvres – steeper turns higher the stalling speed.

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