vii Reconnaissance Procedures...................................10-1 High Reconnaissance........................................10-1 Low Reconnaissance ........................................10-1 Ground Reconnaissance....................................10-1 Maximum Performance Takeoff ...........................10-2 Technique..........................................................10-2 Common Errors ................................................10-2 Running/Rolling Takeoff.......................................10-2 Technique..........................................................10-3 Common Errors ................................................10-3 Rapid Deceleration (Quick Stop) ..........................10-3 Technique..........................................................10-3 Common Errors ................................................10-4 Steep Approach to a Hover ...................................10-4 Technique..........................................................10-4 Common Errors ................................................10-5 Shallow Approach and Running/Roll-On  Landing..................................................................10-5 Technique..........................................................10-5 Common Errors ................................................10-5 Slope Operations ...................................................10-6 Slope Landing ...................................................10-6 Autorotation...........................................................11-1 Straight-in Autorotation ....................................11-2 Technique .....................................................11-2 Common Errors............................................11-3 Power Recovery From Practice  Autorotation ......................................................11-3 Technique .....................................................11-3 Common Errors............................................11-3 Autorotation With Turns ...................................11-3 Technique .....................................................11-3 Power Failure in a Hover..................................11-4 Technique .....................................................11-4 Common Errors............................................11-4 Height/Velocity Diagram.......................................11-4 The Effect of Weight Versus  Density Altitude ................................................11-5 Vortex Ring State (Settling With Power) ..............11-5 Retreating Blade Stall............................................11-6 Ground Resonance.................................................11-7 Dynamic Rollover .................................................11-7 Critical Conditions ............................................11-8 Cyclic Trim .......................................................11-8 Normal Takeoffs and Landings.........................11-8 Slope Takeoffs and Landings............................11-8 Use of Collective ..............................................11-9 Precautions ........................................................11-9 Low G Conditions and Mast Bumping ...............11-10 Low Rotor RPM and Blade Stall ........................11-10 Recovery From Low Rotor RPM ........................11-10 Systems Malfunctions..........................................11-11 Antitorque System Failure ..............................11-11 Landing—Stuck Left Pedal........................11-11 Landing—Stuck Neutral or  Right Pedal .................................................11-12 Unanticipated Yaw / Loss of Tail Rotor Effectiveness (LTE) ........................................11-12 Main Rotor Disc Interference  (285-315°) .......................................................11-12 Weathercock Stability (120-240°) .......................................................11-13 Technique .....................................................10-6 Common Errors............................................10-6 Slope Takeoff ....................................................10-6 Technique .....................................................10-7 Common Errors............................................10-7 Confined Area Operations.....................................10-7 Approach...........................................................10-7 Takeoff ..............................................................10-8 Common Errors ................................................10-8 Pinnacle and Ridgeline Operations .......................10-8 Approach and Landing .....................................10-8 Takeoff ..............................................................10-9 Common Errors ................................................10-9 Technique..........................................................9-12 Common Errors ................................................9-12 Turns......................................................................9-12 Technique..........................................................9-12 Slips ..................................................................9-13 Skids..................................................................9-13 Common Errors ................................................9-13 Normal Climb........................................................9-13 Technique..........................................................9-13 Common Errors ................................................9-14 Normal Descent.....................................................9-14 Technique..........................................................9-14 Common Errors ................................................9-14 Ground Reference Maneuvers...............................9-14 Rectangular Course...........................................9-14 S-Turns..............................................................9-16 Turns Around a Point........................................9-17 Common Errors During Ground  Reference Maneuvers .......................................9-18 Traffic Patterns ......................................................9-18 Approaches ............................................................9-19 Normal Approach to a Hover ...........................9-19 Technique .....................................................9-19 Common Errors ............................................9-19 Normal Approach to the Surface ......................9-20 Technique .....................................................9-20 Common Errors ............................................9-20 Crosswind During Approaches .........................9-20 Go-Around.............................................................9-20 After Landing and Securing ..................................9-20 Noise Abatement Procedures ................................9-20 Chapter 10—Advanced Maneuvers Chapter 11—Helicopter Emergencies