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  • Chapter 14: Airport Operations › Wind Direction Indicators

    Wind Direction Indicators It is important for a pilot to know the direction of the wind. At facilities with an operating control tower, this information is provided by ATC. Information may also be provided ... receive and broadcast on this frequency. When none of these services is available, it is possible to determine wind direction and runway in use by visual wind indicators. A pilot should check these wind indicators even…

  • Glossary › Pilot’s Operating Handbook/Airplane Flight Manual

    system (DGPS) that improves the accuracy of the system by determining position error from the GPS satellites, then transmitting the error, or corrective factors, to the airborne GPS receiver. Wind correction angle (WCA). The angle between the desired track ... keep the aircraft tracking over the desired track. Wind direction indicators. Indicators that include a wind sock, wind tee, or tetrahedron. Visual reference will determine wind direction and runway in use. Zone of confusion…

  • Chapter 13: Effective Aeronautical Decision-Making › Single-Pilot Resource Management

    access to a current wind report, should that pilot pick an approach path based on the direction of wind information received from an earlier weather brief? Making an approach into a confined area with a tailwind ... resources such a smoke, trees, and water on a pond to help him or her accurately determine which direction the winds are coming from. Pilots should never leave flying up to chance and hope for the best. Many…

  • Chapter 6. Emergency Procedures › Section 3. Distress and Urgency Procedures › 6-3-3. Ditching Procedures

    Knowing this, and by observing the direction of the streaks, the wind direction is easily determined. Wind velocity can be estimated by noting the appearance of the whitecaps, foam and wind streaks. 1. The behavior…

  • Chapter 10. Helicopter Operations › Section 2. Special Operations › 10-2-3. Landing Zone Safety

    referred to as the “high reconnaissance” maneuver. f. Wind Direction and Touchdown Area 1. Determine from which direction the wind is blowing. Helicopters normally land and takeoff into the wind. 2. If contact…

  • Chapter 7: Helicopter Performance › Sample Hover Problem 3 › Climb Performance

    Sample Hover Problem 3 Using Figure 7-6, determine what torque is required to hover. Use the following conditions: First, enter the chart at 9,500 feet pressure altitude, then move right to outside air temperature, 0 °C. From that ... available. If there is a surplus of power available, the helicopter can climb vertically, so VX is zero. Wind direction and speed have an effect on climb performance, but it is often misunderstood. Airspeed is the speed…