HI.X.B.K1

From the FAA library

• Certification: Pilots and Flight and Ground Instructorsp. 18
  26 FLIGHT INSTRUCTORS OTHER THAN FLIGHT INSTRUCTORS WITH A SPORT PILOT RATING › 26.2 Flight Instructor Certificate With Rotorcraft Category and Helicopter Class Rating

  instructional knowledge relating to the elements, common errors, performance, and correction of common errors related to straight-in autorotation in a single-engine helicopter and autorotation with turns in a single-engine helicopter. The examiner may accept this logbook endorsement ... failing the previous practical test for deficiencies in instructional knowledge pertaining to the elements, common errors, performance, or correction of common errors related to straight-in autorotation in a single-engine helicopter or autorotation with turns in a single-engine…

• Certification: Pilots and Flight and Ground Instructorsp. A-16
  APPENDIX A. SAMPLE ENDORSEMENTS › A.50 Helicopter Touchdown Autorotation

  received training in straight-in autorotations in a single engine helicopter and autorotation with turns in a single engine helicopter to include touchdown. I have determined that they are competent in instructional knowledge relating to the elements, common errors, performance…

• Helicopter Flying Handbookp. 11-3
  Chapter 11: Helicopter Emergencies and Hazards › Autorotation › Straight-In Autorotation

  Risk Management during Autorotation Training The following sections describe enhanced guidelines for autorotations during rotorcraft/helicopter flight training, as stated in Advisory Circular (AC) 61-140. There are risks inherent in performing autorotations in the training environment, and in particular ... degree autorotation. This section describes an acceptable means, but not the only means, of training applicants for a rotorcraft/helicopter airman certificate to meet the qualifications for various rotorcraft/helicopter ratings. You may use alternate methods for training if you establish that…

• Helicopter Flying Handbookp. 11-6
  Chapter 11: Helicopter Emergencies and Hazards › Common Errors › Autorotation with Turns

  Autorotation with Turns Turns (or a series of turns) can be made during autorotation to facilitate landing into the wind or avoiding obstacles. Turns during autorotation should be made early so that the remainder of the autorotation is flown identically ... straight-in autorotation. The most common turns in an autorotation are 90 degrees and 180 degrees. The following technique describes an autorotation with a 180-degree turn. The pilot establishes the aircraft on a downwind heading at the recommended airspeed…

• Helicopter Flying Handbookp. 2-25
  Chapter 2: Aerodynamics of Flight › Turning Flight › Vertical Autorotation

  Vertical Autorotation Most autorotations are performed with forward speed. For simplicity, the following aerodynamic explanation is based on a vertical autorotative descent (no forward speed) in still air. Under these conditions, the forces that cause the blades to turn ... plane of rotation. Therefore, dissymmetry of lift resulting from helicopter airspeed is not a factor. During vertical autorotation, the rotor disk is divided into three regions (as illustrated in Figure 2-47): driven region, driving region, and stall region. Figure…

• Helicopter Flying Handbookp. 11-1
  Chapter 11: Helicopter Emergencies and Hazards › Autorotation

  flight. In addition, by knowing the conditions that can lead to an emergency, many potential accidents can be avoided. Autorotation In a helicopter, an autorotative descent is a power-off maneuver in which the engine is disengaged from the main ... other words, the engine is no longer supplying power to the main rotor. The most common reason for an autorotation is failure of the engine or drive line, but autorotation may also be performed in the event of a complete…