FH.VII.A.S9

From the FAA library

• Helicopter Flying Handbookp. 2-9
  Chapter 2: Aerodynamics of Flight › Airflow and Reactions in the Rotor Disk › Rotational Relative Wind (Tip-Path Plane)

  Airflow and Reactions in the Rotor Disk Relative Wind Knowledge of relative wind is essential for an understanding of aerodynamics and its practical flight application for the pilot. Relative wind is airflow relative to an airfoil. Movement of an airfoil ... through the air creates relative wind. Relative wind moves in a direction parallel to but opposite of the movement of the airfoil. [Figure 2-15] There are two parts to wind passing a rotor blade: • Horizontal part—caused…

• Helicopter Flying Handbookp. 11-5
  Chapter 11: Helicopter Emergencies and Hazards › Autorotation › Common Errors

  landing carriage, slowing the helicopter; however, this is dependent on the condition of the landing surface. One common error is the holding of the helicopter off the surface, versus cushioning it onto the surface during an autorotation. Holding the helicopter ... surface for a controlled, smooth landing instead of allowing the helicopter to drop the last few inches. Common Errors 1. Not understanding the importance of an immediate entry into autorotation upon powerplant or driveline failure. 2. Failing to use sufficient…

• Helicopter Flying Handbookp. 2-10
  Chapter 2: Aerodynamics of Flight › Airflow and Reactions in the Rotor Disk › Resultant Relative Wind

  highest. As blade speed decreases nearer the center of the disk, downward velocity is less. Figure 2-19. Rotational relative wind. Resultant Relative Wind The resultant relative wind at a hover is rotational relative wind modified by induced flow. This ... inclined downward at some angle and opposite the effective flightpath of the airfoil, rather than the physical flightpath (rotational relative wind). The resultant relative wind also serves as the reference plane for development of lift, drag, and total aerodynamic force…

• Risk Management Handbookp. 6-1
  Chapter 6: Threat and Error Management › Causes of Errors › Insufficient Training & Experience

  Chapter 6: Threat and Error Management Introduction Threats What is an Error? Causes of Errors Insufficient Training & Experience Introduction Pilots use risk management as described in earlier chapters to analyze the likelihood and potential severity of an incident or accident ... encounter unforeseen hazards or threats. In addition, a pilot may respond inappropriately to a given condition, thus making an error. This chapter provides strategies pilots may use once flight begins. Threats Threats have the following characteristics: • Threats occur outside…

• Helicopter Flying Handbookp. 9-7
  Chapter 9: Basic Flight Maneuvers › Hovering › Common Errors

  Common Errors 1. Tenseness and slow reactions to movements of the helicopter. 2. Failure to allow for lag in cyclic and collective pitch, which leads to overcontrolling. It is very common for a student to get ahead of the helicopter…

• Instrument Flying Handbookp. 7-24
  Chapter 7, Section I: Airplane Basic Flight Maneuvers › Turns › Steep Turns

  During training in steep turns, as in any other maneuver, attend to the most important tasks first. Keep the pitch attitude relatively constant, and more time can be devoted to cross-check and instrument interpretation. During recovery from steep turns ... released and power decreased. The common errors associated with steep turns are the same as those discussed later in this section. Remember, errors are more exaggerated, more difficult to correct, and more difficult to analyze unless rates of entry…