Helicopter Aerodynamics Volume I

Front Cover
Lulu.com, 2009 - Technology & Engineering - 592 pages
This is a collection of Ray Prouty's columns from Rotor and Wing magazine from 1979 to 1992.
 

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Contents

1 Answering Questions About Helicopters
1
2 Progress In Helicopter Aerodynamics
9
3 Hover Power
13
4 Hover Figure of Merit Forward Flight Ratios
19
5 Ground Effect in Hover
25
6 Aerodynamic Environment at the Rotor Blade
29
7 Is The Rotor A Gyro?
37
8 The Rotor Wake
39
54 Designing For Maneuverability
305
55 Designing For High Speed
311
56 Dynamic Inflow
315
57 Mysteries About Inflow And Power
319
58 Control Systems
323
59 Directional Stability Autorotation Control Problems
329
60 Stability Augmentation Systems
333
61 FlyByWire
337

9 VortexRing State
43
10 Downwash Patterns
49
11 Rotor Upwash
57
12 Blade Flapping and Feathering
63
13 Effects of Rotor Flapping
71
14 Blade Stall
79
15 The Search For A Stable Helicopter
83
16 Static Stability
87
17 Dynamic Stability
97
18 Maximum Load Factor
105
19 Forward Flight Performance
109
20 Vertical Climbs and Descents
117
21 Crosscoupling
123
22 FieldOfView FieldOfFire
127
23 Emergency Maneuvering
131
24 Flying Qualities
137
25 High Performance Takeoffs
143
26 Translational Lift and Transverse Flow
147
27 Low Speed Flight
151
28 Turns Pullups and Pushovers
161
29 Sideslip And Bank
165
30 Maneuverability and Aerobatics
169
31 Flying in Steady Winds
179
32 Flight In Turbulent Air
183
33 Angle Limitations
185
34 Coping with a Power Failure
187
35 Low Speed Power Failures
193
36 Stretching the Glide
197
37 Autorotation And Low Load Factors
201
38 Instrument Flight
205
39 External Loads
209
40 Blade Tracking
213
41 Tying The Helicopter Down
217
42 Accidents Waiting to Happen
219
43 HelicopterShip Operations
225
44 Preliminary Design
231
45 Axes Systems And Trim Considerations
235
46 Main Rotor Design
243
47 Tail Rotor Design
261
48 Airfoils For Rotor Blades
269
49 The LeadLag Hinge
285
50 PitchLink Loads
289
51 Considerations Of BladeHub Geometry
293
52 Blade Anhedral
297
53 Blade Strikes
301
62 Smart Control Systems
341
63 New Criteria for Flying Qualities
347
64 Parameter Identification
353
65 Computational Fluid Dynamics
357
66 Aerodynamic Modifications
361
67 Wind Tunnel Testing and Simulation
365
68 Horizontal and Vertical Stabilizers
375
69 TailBoom Strakes
383
70 Landing Gear Choices
387
71 Structural Loads and Component Lives
391
72 Designing Reliable Helicopter Structural
401
73 Airspeed Systems
407
74 Icing and Deicing
411
75 The Turbine Engine and the Helicopter
417
76 Modern Turboshaft Speed Governing
421
77 Engine Snow Protection
425
78 Helicopter Noise
429
79 Helicopter Noise Research
433
80 Helicopter Vibration
437
81 Vibration Sources
443
82 Vibration Criteria
449
83 Higher Harmonic Control
453
84 Spiral Dives And Dutch Rolls
457
85 Crashworthiness And Escape
463
86 TipDriven Rotors
467
Wing Or Rotor?
473
88 Tandem Rotor Helicopters
479
89 Coaxials and Synchropters
483
90 Antitorque Schemes For Compound Helicopters
489
91 Stopping a Rotor in Flight
491
92 A New Look At The Autogyro
495
93 Attempts To Revive The Autogyro
499
94 Low Observables
505
95 Windmills
511
The First 50 Years
515
97 The Hughes XH17 Flying Crane
523
98 The Lockheed Experience
531
99 Attack Helicopters
549
100 The Mil Mi28 Havoc
557
101 Evolution Of Sikorsky Tails
561
102 Which Way Should The Rotor Turn?
565
103 OneMan Helicopters
573
104 Convertiplanes
581
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