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  • Chapter 7. Safety of Flight › Section 4. Wake Turbulence › 7-4-4. Vortex Behavior

    time and hasten the drift of the downwind vortex toward another runway. (See FIG 7-4-6.) Similarly, a tailwind condition can move the vortices of the preceding aircraft forward into the touchdown zone. THE LIGHT QUARTERING TAILWIND REQUIRES MAXIMUM ... aircraft upwind from their approach and takeoff flight paths. (See FIG 7-4-7.) Vortex Movement in Ground Effect - Tailwind…

  • Chapter 12: Weather Theory › Wind and Currents › Low-Level Wind Shear

    aircraft. It can rapidly change the performance of the aircraft and disrupt the normal flight attitude. For example, a tailwind quickly changing to a headwind causes an increase in airspeed and performance. Conversely, a headwind changing to a tailwind causes…

  • Chapter 5. Air Traffic Procedures › Section 4. Arrival Procedures › 5-4-10. Timed Approaches from a Holding Fix

    while outbound and decrease the ground speed while returning to the fix. On the other hand, compensating for a tailwind on final approach, the pilot should lengthen the calculated 30 second outbound heading somewhat, knowing that the wind would tend…

  • Chapter 4. Air Traffic Control › Section 3. Airport Operations › 4-3-3. Traffic Patterns

    varying degrees. Figure 4-3-4 is an example of a chart used to determine the headwind, crosswind, and tailwind components based on wind direction and velocity relative to the runway. Pilots should refer to similar information provided…

  • Chapter 14: Airport Operations › Collision Avoidance

    ground, the vortex hazard may exist along the runway and in the flight path, particularly in a quartering tailwind), it is prudent to wait at least 2 minutes prior to a takeoff or landing. • En route, it is advisable…

  • 22 Thunderstorms › 22.7.3.4 Wind Shear Effects on Airplanes and Systems › 22.7.3.4.1 Headwind/Tailwind Shear Response

    increases, causing an airspeed increase. • Decreasing Headwind Shear: Wind shear in which headwind decreases, causing an airspeed decrease. • Decreasing Tailwind Shear: Wind shear in which tailwind decreases, causing an airspeed increase. • Increasing Tailwind Shear: Wind shear in which tailwind increases ... addition, the magnitude of the shear depends on the flightpath through the microburst. An increasing headwind (or decreasing tailwind) shear increases indicated airspeed and thus increases performance. The airplane will tend to pitch up to regain trim airspeed. An additional…