Airship Technology

Preface xi Acknowledgements xii Introduction 1(4) G. A. Khoury J.D. Gillett Basic Principles 5(20) E. Mowforth Introduction 5(1) Principles of aerostatics 5(6) The aerostatics of the airship 11(6) The aerodynamics of the airship 17(3) Unconventional designs 20(5) Aerodynamics 25(48) I. Cheeseman Basic Assumptions 25(3) Drag 28(11) Dynamic forces 39(7) Slender body theory 46(3) An estimation method for overall aerodynamic forces and moments 49(6) Unsteady aerodynamics 55(4) Aerodynamic parameter estimation 59(11) References 70(3) Stability and Control 73(34) M.V. Cook Introduction 73(2) System of axes and notation 75(1) The equations of motion 76(7) The linearised equations of motion 83(5) Dynamic stability analysis 88(8) Control and response 96(6) Automatic flight control 102(2) Flying and handling qualities 104(1) Acknowledgements 104(1) References 104(1) Symbols 105(1) Subscripts 106(1) Stability and control derivatives 106(1) Propulsion 107(34) I. Cheeseman Introduction 107(1) The propulsor 107(22) The prime mover 129(4) Energy sources 133(2) Propulsion, performance and control 135(4) References 139(2) Materials 141(24) P. Bradley Introduction 141(1) Desirable properties for airship textile materials 141(1) Development of textiles for airship use 142(11) Properties of envelope materials 153(9) Improved laminates 162(1) Summary 162(1) References 163(2) Structures 165(46) C. Luffman Introduction 165(1) Historical 166(1) General principles and considerations 166(11) Principal structural groups 177(32) References 209(2) Aerostatics 211(24) J. Craig Introduction 211(1) The atmosphere 212(3) Contained gas 215(1) Buoyancy and static lift 216(2) Summary of airship operations 218(3) Other factors affecting lift 221(1) Closed or open 222(2) Airship balance 224(4) Derivation of gas mass properties 228(5) Terms and abbreviations used 233(2) Weight Estimates and Control 235(38) J. Craig Airship mass properties 235(4) Design considerations for weight 239(3) Weight estimation 242(25) Weight monitoring and control 267(1) Build weight control and actual airship weight determination 267(2) Weights aspects of airship operations 269(4) Systems 273(24) N. Mayer Introduction 273(1) Pressure control 273(9) Fuel 282(2) Ballast 284(1) Electrical 285(3) Crew 288(2) Access and maintenance 290(2) Emergency 292(2) Auxiliary thrust 294(1) Replenishing 295(1) References 296(1) Ground Handling and Mooring 297(24) D. Howe Introduction 297(2) Survey of the ground handling problem 299(1) Ground handling and mooring requirements 300(2) Historical review of ground handling techniques 302(7) Forces on an airship whilst moored 309(5) The effect of size on ground handling 314(1) Future ground handling systems 315(4) Conclusion 319(2) Piloting 321(24) D. Burns Introduction 321(1) Effects of controls 322(1) Static heaviness 323(3) Effects of wind 326(1) Weather 327(4) Vectored thrust 331(2) Ground handling 333(1) Take-off 334(3) Pressure height (altitude) 337(1) Free ballooning 338(1) Landing 339(6) Performance 345(14) R. Hunt Mission considerations 345(1) Maximum `in-flight' fuel usage 345(2) Engine selection 347(3) Power off-take 350(1) Engine drives and propellers 351(1) Ship weight 352(1) Gas lift 352(2) Airship sizing 354(2) Effect of wind 356(3) Improvements 359(26) E. Mowforth Introduction 359(1) Buoyancy control by lifting gas manipulation 359(12) Boundary layer control 371(6) Stern propulsion 377(3) Lenticular geometry 380(5) Unconventional Designs 385(56) G.A. Khoury Introduction 385(1) Shape 385(7) Lift 392(17) Power source 409(8) Structural configuration 417(9) Lifting gas 426(2) Control 428(6) Payload 434(2) References 436(5) Solar Power 441(34) G.A. Khoury Introduction 441(1) Outline of the `Sunship' 442(2) Solar radiation 444(4) Solar-powered flight speed 448(10) Components of the solar power system 458(15) References 473(2) Roles and economic considerations 475(32) R. Hillsdon Introduction 475(1) The utility of airship types 475(8) The spectrum of potential roles 483(9) Role suitability 492(4) The potential market 496(4) Airship economics 500(4) Conclusion 504(1) References 504(3) Design Synthesis 507(28) B.G. Wilson Introduction 507(1) Preliminary comments 507(7) Baseline design layout 514(3) Baseline evaluation 517(4) Design trades and sensitivities 521(7) Technology trends 528(2) Design synthesis 530(5) Index 535