"Second U.S. edition."--T.p. verso.

Includes index.

1 Physics 1 -- Newton's Laws 1 -- Mathematical Terms 3 -- Vector Quantities 5 -- Moments and Couples 6 -- Energy 6 -- Units of Measurement 7 -- Graphs 8 -- 2 Atmosphere 11 -- Atmospheric Pressure 11 -- Operational Considerations 14 -- 3 Lift 15 -- Lift Formula 18 -- Center of Pressure 22 -- Aerodynamic Center 24 -- 4 Drag 27 -- Types of Drag 28 -- Methods to Reduce Induced Drag 35 -- Total Drag Curve 36 -- 5 Lift/Drag Ratio 39 -- Best (or Maximum) L/D Ratio 40 -- Other Factors Influencing L/D Ratio 41 -- 6 Aerodynamic Forces 43 -- Rotor Systems 45 -- Rotational Airflow (Vr) 46 -- Blade Angle of Attack 46 -- Induced Flow 47 -- Airflow Caused by Aircraft Velocity 48 -- Forces 48 -- Inflow Angle 51 -- Force Opposing Weight 52 -- Factors Influencing Rotor Thrust 53 -- 7 Rotor Blade Airfoils 57 -- Drag Factors 57 -- Stress Factors 58 -- Effect of Local Air Velocity on Blade Design 59 -- Blade Tip Speeds 59 -- Development in Blade Design 60 -- 8 Rotor Drag (Torque) 61 -- Disc Loading Changes 61 -- Changes in Gross Weight 62 -- Changes in Altitude 62 -- Changes in Configuration 62 -- Ground Effect 62 -- Translational Lift 64 -- 9 Anti-Torque Rotor 67 -- Anti-Torque Functions 67 -- Translating Tendency (Tail Rotor Drift) 70 -- Rolling Tendency 71 -- Tail Rotor Flapping 71 -- Shrouded Tail Rotors 72 -- Tail Rotor Design 72 -- Other Methods of Anti-Torque Control 72 -- Tail Rotor Failure 74 -- 10 Controls and Their Effects 77 -- Collective Control 77 -- Cyclic Control 78 -- Effect of Controls on Blade Lead-Lag Behavior 78 -- Four Main Causes of Movement about the Lead/Lag Hinge 78 -- 11 Hover 81 -- Hover Our-of Ground Effect (OGE) and In-Ground Effect (IGE) 81 -- Factors Affecting Ground Effect 82 -- Confined Areas - Recirculation 84 -- Over-Pitching 85 -- 12 Forward Flight 87 -- Three Basic Aspects of Horizontal Flight 89 -- Designs that Reduce Flapping Amplitude 96 -- Reverse Flow 98 -- Translational Lift 99 -- Transverse Flow Effect 101 -- 13 Power, Range and Endurance 103 -- Power 103 -- Total Horsepower Required Curve (the HPR) 105 -- Flying the Helicopter for Range 108 -- Flying the Helicopter for Endurance 111 -- 14 Climbing and Descending 113 -- Climbing 113 -- Horsepower Available Curve (The HPA) 114 -- Factors Affecting the Horsepower Available Curve 114 -- Rate of Climb 115 -- Angle of Climb 116 -- Effect of Lowering Horsepower Available Curve 116 -- Effect of the Wind 117 -- Climb Performance Summary 118 -- Descending 118 -- Angle of Descent 119 -- Effect of the Wind on Descents 120 -- Descent Performance Summary 121 -- 15 Maneuvers 123 -- Turning 123 -- Rate of Turn 124 -- Radius of Turn 125 -- Rate and Radius Interaction 125 -- Steep Turn 125 -- Climbing Turn 127 -- Descending Turn 127 -- Effect of Altitude on Rate of Turn and Radius of Turn 127 -- Effect of Changes in Gross Weight on Rate and Radius 128 -- Effect of the Wind on Rate and Radius 128 -- Effect of the Wind on Indicated Airspeed and Translational Lift 129 -- Effect of Slingloads 130 -- Effect of Slipping and Skidding 131 -- Pull-Out from a Descent 131 -- 16 Flare 133 -- Initial Action 133 -- Flare Effects 133 -- Management of Collective 135 -- 17 Retreating Blade Stall 137 -- Effect of Increasing Airspeed on Stall Angle 137 -- Factors Affecting the Advancing Blade 138 -- Symptoms of Retreating Blade Stall 138 -- Recovery 139 -- Factors Influencing V[subscript ne] 140 -- 18 Autorotation 143 -- Initial Aircraft Reaction 143 -- Lift/Drag Ratio and Forces Involved 143 -- Autorotation and Airspeed 148 -- Autorotation Range and Endurance 150 -- Touchdown 152 -- Loss of Power at Low Heights 153 -- Factors Influencing Rotor rpm Decay When the Engine Fails 153 -- Combination of Airspeed and Height Best Avoided 153 -- 19 Hazardous Flight Conditions 157 -- Vortex Ring State 157 -- Flight Conditions Likely to Lead to Vortex Ring State 160 -- Symptoms of Vortex Ring State 160 -- Recovery from Vortex Ring State 161 -- Tail Rotor Vortex Ring State 161 -- Ground Resonance 162 -- Causes of Ground Resonance 162 -- Factors that May Cause Ground Resonance 163 -- Ground Resonance Recovery Action 164 -- Blade Sailing 164 -- Dynamic Rollover 165 -- Factors Influencing the Critical Angle 165 -- Cyclic Limitations 166 -- Mast Bumping 167 -- Avoiding Mast Bumping 169 -- Recovery from Low and Zero g 169 -- Mast Bumping Summary 169 -- Exceeding Rotor rpm Limits 169 -- Reasons for High Rotor rpm Limits 169 -- Reasons for Low Rotor rpm Limits 170 -- Rotor Stalls 170 -- Recovery from Low Rotor rpm 171 -- 20 Helicopter Design and Components 173 -- Transmission 173 -- Main Rotor Gear Box 173 -- Freewheeling Unit 174 -- Drive Shafts 174 -- Tail Rotor Gear Box 174 -- Rotor Brake 174 -- Clutch 174 -- Chip Detectors 175 -- Governors 175 -- Swashplate (Control Orbit) 176 -- Rotor Blades 179 -- Trim Controls 180 -- Tail Rotors 181 -- Helicopter Vibrations 181 -- Control Functions 184 -- Engine Cooling 185 -- Carburetor Icing 185 -- Dual Tachometer Instruments 186 -- Rotor Stabilizing Design Systems 187 -- Rotorless Anti-Torque System 189 -- Advantages of the Notar System 189 -- Components 189 -- Undercarriages 192 -- 21 Stability 195 -- Static Stability 195 -- Dynamic Stability 195 -- Stability in the Three Planes of Movement 196 -- Longitudinal Stability 197 -- Lateral Stability 198 -- Directional Stability 199 -- Offset Flapping Hinges 200 -- 22 Special Helicopter Techniques 203 -- Crosswind Factors 203 -- Different Types of Takeoffs and Landings 204 -- Downwind Takeoffs and Landings 204 -- Running Takeoff 204 -- Cushion-Creep Takeoff 205 -- Confined Area Takeoff (Towering Takeoff) 205 -- Maximum Performance Takeoff 206 -- Running Landing 206 -- Zero-Speed Landing 207 -- Operations on Sloping Surfaces 207 -- Sling Operations 208 -- Equipment 208 -- Ground Handling 211 -- Flying Techniques 212 -- Types of Slingload 215 -- 23 Mountain Flying 221 -- Updrafts and Downdrafts 221 -- Thermal Currents 223 -- Katabatic and Anabatic Winds 224 -- Mechanical Turbulence 224 -- Valley Flying 227 -- Ridgeline Flying 228 -- "Standard" Mountain Approach 228 -- General Coinments on Mountain Approaches 230 -- Survival Equipment 235 -- 24 Helicopter Icing 237 -- Ice Accretion 237 -- Ice Formation on Blades at Different Temperatures 239 -- Electrical Anti-Icing 240 -- Consequences of Ice Accretion 240 -- Engine Intake Icing 241 -- 25 Helicopter Performance 243 -- Helicopter Performance Factors 243 -- Altitude 243 -- Pressure Altitude 244 -- Density Altitude 246 -- Moisture Content of Air 248 -- Aircraft Gross Weight 248 -- External Stores 248 -- Wind 249 -- Power Check 249 -- Performance Graphs 250 -- Hover Ceiling Graph 252 -- Takeoff Distance over a 50-Foot Obstacle 254 -- Turbine Engine Power Check 256 -- Maximum Gross Weight for Hovering 258 -- Climb Performance 260 -- Range 261 -- Endurance 262 -- 26 Weight and Balance 265 -- Weight 267 -- Balance 267 -- Beyond the Center of Gravity Limits 268 -- Calculating the Center of Gravity Position 269 -- Effect of External Loads on Center of Gravity Position 273 -- Appendix 1 Sample Examination 277 -- Appendix 2 Temperature Conversion 287 -- Appendix 3 Altimeter Setting Conversion 289.