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TABLE OF CONTENTS (cont.)
CHAPTER 16 – PROPULSION ..................................................................................................................... 125
16–1 Drive System ................................................................................................................................. 125
16–2 Power Required ............................................................................................................................. 126
16–3 Geometry ....................................................................................................................................... 127
16–4 Drive-System Rating ..................................................................................................................... 127
16–5 Weights .......................................................................................................................................... 127
CHAPTER 17 – ENGINE GROUP................................................................................................................. 129
17–1 Engine Performance ...................................................................................................................... 129
17–2 Control and Loads ......................................................................................................................... 130
17–3 Nacelle Drag .................................................................................................................................. 131
17–4 Engine Scaling ............................................................................................................................... 132
17–5 Weights .......................................................................................................................................... 132
CHAPTER 18 – REFERRED PARAMETER TURBOSHAFT ENGINE MODEL ...................................... 135
18–1 Operating Environment ................................................................................................................. 135
18–2 Engine Ratings .............................................................................................................................. 136
18–3 Performance Characteristics .......................................................................................................... 136
18–4 Installation ..................................................................................................................................... 137
18–5 Power-Turbine Speed .................................................................................................................... 137
18–6 Power Available ............................................................................................................................ 138
18–7 Performance at Power Required .................................................................................................... 139
18–8 Scaling ........................................................................................................................................... 139
18–9 Engine Speed ................................................................................................................................. 140
18–10 Weight ........................................................................................................................................... 140
18–11 Units .............................................................................................................................................. 141
18–12 Typical Parameters ........................................................................................................................ 141
CHAPTER 19 – AFDD WEIGHT MODELS ................................................................................................. 147
19–1 Wing Group ................................................................................................................................... 147
19–2 Rotor Group ................................................................................................................................... 152
19–3 Empennage Group ......................................................................................................................... 153
19–4 Fuselage Group.............................................................................................................................. 154
19–5 Alighting Gear Group .................................................................................................................... 156
19–6 Engine Section or Nacelle Group and Air Induction Group ......................................................... 156
19–7 Propulsion Group .......................................................................................................................... 157
19–8 Flight Controls Group ................................................................................................................... 159
19–9 Hydraulic Group ............................................................................................................................ 161
19–10 Anti-Icing Group ........................................................................................................................... 161
19–11 Other Systems and Equipment ...................................................................................................... 162
19–12 Folding Weight .............................................................................................................................. 163
19–13 Parametric Weight Correlation...................................................................................................... 163
19–14 References ..................................................................................................................................... 163
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