PL.V.B.R5c

From the FAA library

• Pilot's Handbook of Aeronautical Knowledgep. 11-15
  Chapter 11: Aircraft Performance › Takeoff and Landing Performance › Takeoff Performance

  allow the aircraft to reach the lift-off speed at a lower groundspeed, while the effect of a tailwind is to require the aircraft to achieve a greater groundspeed to attain the lift-off speed. A headwind that ... percent of the takeoff airspeed reduces the takeoff distance approximately 19 percent. However, a tailwind that is 10 percent of the takeoff airspeed increases the takeoff distance approximately 21 percent. In the case where the headwind speed is 50 percent…

• Aeronautical Information Manualp. 7-4-4
  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…

• Aeronautical Information Manualp. 4-3-23
  Chapter 4. Air Traffic Control › Section 3. Airport Operations › 4-3-17. VFR Helicopter Operations at Controlled Airports

  DEPARTURE/DEPAR TURE ROUTE (number, name, etc.).” Unless requested by the pilot, downwind takeoffs will not be issued if the tailwind exceeds 5 knots. 2. Pilots should be alert to wind information as well as to wind indications in the vicinity…

• Aeronautical Information Manualp. 7-6-7
  Chapter 7. Safety of Flight › Section 6. Potential Flight Hazards › 7-6-8. Use of Runway Half-way Signs at Unimproved Airports

  runway. In addition, this technique does not take into account the effects of upslope or tailwinds on takeoff performance. These factors will also require greater acceleration than normal and, under some circumstances, prevent takeoff entirely. d. Use of this “rule…

• Aeronautical Information Manualp. 5-4-38
  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…

• Pilot's Handbook of Aeronautical Knowledgep. 12-11
  Chapter 12: Weather Theory › Wind and Currents › Low-Level Wind Shear

  Conversely, a headwind changing to a tailwind causes a decrease in airspeed and performance. In either case, a pilot must be prepared to react immediately to these changes to maintain control of the aircraft. The most severe type ... first experience a performance-increasing headwind (1), followed by performance-decreasing downdrafts (2), followed by a rapidly increasing tailwind (3). This can result in terrain impact or flight dangerously close to the ground (4). An encounter during approach involves…