HI.XI.B.R1

From the FAA library

• Helicopter Flying Handbookp. 10-4
  Chapter 10: Advanced Flight Maneuvers › Rapid Deceleration or Quick Stop › Technique

  accelerate to the desired entry speed, which is approximately 45 knots for most training helicopters (position 2). The altitude chosen should be high enough to avoid danger to the tail rotor during the flare, but low enough to stay…

• Helicopter Flying Handbookp. 11-10
  Chapter 11: Helicopter Emergencies and Hazards › Retreating Blade Stall

  Common Errors—Traditional Recovery 1. Too much lateral speed for entry into vortex ring state. 2. Excessive decrease of collective. Common Errors—Vuichard Recovery 1. Excessive lateral cyclic 2. Failure to maintain heading Retreating Blade Stall In forward flight ... development can be felt by a low frequency vibration, pitching up of the nose, and a roll in the direction of the retreating blade. High weight, low rotor rpm, high density altitude, turbulence and/or steep, abrupt turns are all conducive…

• Helicopter Flying Handbookp. 11-7
  Chapter 11: Helicopter Emergencies and Hazards › Autorotation › Common Errors

  Common Errors The following common errors should be prevented: 1. Entering the maneuver at an improper altitude or airspeed. 2. Entering the maneuver without a level attitude (or not in coordinated flight). 3. Entering the maneuver and not correcting from ... which allows excessive airspeed loss in the descent). 4. Improper transition into the descent on entry. 5. Improper use of anti-torque on entry. 6. Failure to establish the appropriate crosswind correction, allowing the aircraft to drift. Failure to maintain…

• Pilot's Handbook of Aeronautical Knowledgep. 5-37
  Chapter 5: Aerodynamics of Flight › Load Factors › Chandelles and Lazy Eights

  great a gain in altitude; in low-powered aircraft, it may result in a net loss of altitude. The smoothest pull-up possible, with a moderate load factor, delivers the greatest gain in altitude in a chandelle and results ... better overall performance in both chandelles and lazy eights. The recommended entry speed for these maneuvers is generally near the manufacturer’s design maneuvering speed, which allows maximum development of load factors without exceeding the load limits. Rough…

• Helicopter Flying Handbookp. 10-5
  Chapter 10: Advanced Flight Maneuvers › Steep Approach

  Common Errors 1. Initiating the maneuver by lowering the collective without aft cyclic pressure to maintain altitude. 2. Initially applying aft cyclic stick too rapidly, causing the helicopter to balloon (climb). 3. Failing to effectively control the rate of deceleration ... accomplish the desired results. 4. Allowing the helicopter to stop forward motion in a tail-low attitude. 5. Failing to maintain proper rotor rpm. 6. Waiting too long to apply collective pitch (power) during the recovery, resulting in an overtorque…

• Helicopter Flying Handbookp. 11-3
  Chapter 11: Helicopter Emergencies and Hazards › Autorotation › RPM Control

  slight gain in altitude at cruise airspeed during the power off entry into an autorotation should not be of great concern as is the case for the execution of practice or actual quick stops. Various accident investigations have concluded that ... cruise airspeed, pilots are not simultaneously applying down collective, aft cyclic, and antitorque pedal inputs in a timely manner. Low inertia rotor systems store less kinetic energy during autorotation and, as a result, rotor rpm decays rapidly during deceleration…