XV-15 litho - NASA's History Office

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Figure E-11. Ken Wernicke, Bell tilt rotor design engineer, 1965. (Bell Photograph 262938) Figure E-12. Ken Wernicke after flying XV-15. (Bell Photograph 05590) 162
Figure E-13. XV-15 N702NA crew station (1982). (Ames Photograph AC82-0493-6) Figure E-14. Composite photograph showing V-22 Osprey in hover, conversion, and airplane mode flight. (Bell Photograph 039956) 163
Page 1:
The History of The XV-15 Tilt Rotor
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Contents Prologue . . . . . . . . .
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Dedication The story of the success
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Foreword The development of tilt ro
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List of Figures Figure 1 Leonardo d
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Figure 41 Simultaneous static test
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Figure A-2 Transcendental Model 2 t
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List of Acronyms AARL Army Aeronaut
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TRENDS Tilt Rotor Engineering Datab
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Figure 2. Illustration of vertical
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Figure 4. McDonnell XV-1 compound h
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Figure 7. Henry Berliner tiltpropel
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Top: Figure 9. The Baynes Heliplane
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Figure 13. Illustration from the Ha
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Figure 17. Bob Lichten, extreme lef
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Figure 20. Tiedown tests of the XV-
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16 Research and Engineering), obtai
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18 management continued to show int
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20 Building the Technology Base Aer
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Figure 25. Bell 25-ft. diameter pro
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Figure 28. Performance tests of 5-f
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Figure 31. Bell 25-ft. diameter pro
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28 Tilt Rotor Research Aircraft Pro
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30 During the late 1960s and early
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32 range of loading conditions and
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34 The initial projected cost of $4
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Figure 35. Illustration of the Boei
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Figure 36. 1/5 scale XV-15 model in
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40 under the contract. To accomplis
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42 Aircraft Development The primary
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44 Test stand angle box Test stand
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Figure 40. Proprotor response to co
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Figure 41. Simultaneous static test
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50 helicopters. For the conversion
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52 Prior to the start of flight ope
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Figure 44. Initial Bell tiedown sho
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56 degrees 25 and a brief assessmen
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Figure 45. XV-15 in the Ames Resear
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60 NAVAIR managers as a means of de
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Figure 46. Government and Bell pers
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Figure 49. Tiedown test facility at
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66 Wheel height Top: Figure 51. Met
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68 Symmetric beam mode Antisymmetri
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Figure 55. XV-15 during short takeo
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Top: Figure 56. Flow visualization
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74 during “degraded” flight con
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Figure 59. Hover acoustics tests du
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78 Nose weight Top: Figure 61. Typi
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80 Following the completion of cont
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82 After the proprotors stopped, th
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84 sudden stoppage of the right eng
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86 A reconversion to the helicopter
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88 Paris Air Show By early 1981, th
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90 enroute from Farnborough to Fran
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Top: Figure 66. Senator Goldwater i
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Figure 69. Shipboard evaluations of
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Figure 71. XV-15 at the New York Po
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98 Crash (October 16 and 17, 1991).
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100 The End of an Era By the mid 19
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Top: Figure 73. XV-15 at the Dallas
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104 management system was very effe
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106 could make use of the same flig
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Figure 76. The Bell tilt rotor eagl
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110 demonstrations two years earlie
Page 138 and 139: 112 Future Tilt Rotor Aircraft By t
Page 140 and 141: 114 tiltrotor aircraft program. Thi
Page 142 and 143: 116 Model 1-G Characteristics Power
Page 144 and 145: Figure A-3. Transcendental Model 2
Page 146 and 147: Figure A-4. XV-3 three-view drawing
Page 148 and 149: Figure A-5. XV-3 inboard drawing, s
Page 150 and 151: Nacelle angle (degrees) 124 120 90
Page 152 and 153: Figure A-8. General layout and majo
Page 154 and 155: Figure A-9. Side view inboard profi
Page 156 and 157: Figure A-11. XV-15 height-velocity
Page 158 and 159: 132 Weight Design . . . . . . . . .
Page 160 and 161: 134 WBS LEVEL: Bell Army/NASA I II
Page 162 and 163: 136 US Army Air Mobility Research a
Page 164 and 165: 138 Army/NASA (continued) Staff (19
Page 166 and 167: 140 Appendix C—Chronology 1452-15
Page 168 and 169: 142 1968 Boeing Vertol awarded cont
Page 170 and 171: 144 November, Initial piloted simul
Page 172 and 173: 146 24 March 1982 XV-15 demonstrate
Page 174 and 175: 148 30 July 1987 FAA/NASA/DOD Tilt
Page 176 and 177: 150 21 August 1990 V-22 reached 340
Page 178 and 179: 152 14 June 1993 The Department of
Page 180 and 181: 154 Appendix D—Awards and Records
Page 182 and 183: Figure D-1. Jean Tinsley, first wom
Page 184 and 185: Figure E-3. XV-15 flying by the Sta
Page 186 and 187: Figure E-7. Bell test pilots Roy Ho
Page 190 and 191: 164 Appendix F—Bibliography Tilt
Page 192 and 193: 166 Ball, J. C. “XV-15 Shipboard
Page 194 and 195: 168 Churchill, G. B.; Dugan, D. C.
Page 196 and 197: 170 Edenborough, H. K. “Investiga
Page 198 and 199: 172 Harendra, P. B.; Joglekar, M. J
Page 200 and 201: 174 Kvaternik, Raymond G. “Studie
Page 202 and 203: 176 Magee, J. P.; Pruyn, R. “Pred
Page 204 and 205: 178 Martin, Stanley, Jr.; Erb, Lee
Page 206 and 207: 180 Rutledge, Charles K.; George, A
Page 208 and 209: 182 Tischler, M. B.; Leung, J. G. M
Page 210 and 211: 184 Whitaker, H. L.; Cheng, Yi. “
Page 212 and 213: 186 Daniel C. Dugan Daniel Dugan gr
Page 214 and 215: 188 Carnet, 88 Carpenter, Ron, 91 C
Page 216 and 217: 190 Moffett Airfield, Moffett Field
Page 219 and 220: Monographs in Aerospace History Lau
Page 222: National Aeronautics and Space Admi
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XV-15 litho - NASA's History Office

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