Theory and Design of Air Cushion Craft

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Butterworth-Heinemann, May 26, 2000 - Business & Economics - 632 pages
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This definitive text describes the theory and design both of Air Cushion Vehicles (ACV) and Surface Effect Ships (SES). It begins by introducing hovercraft types and their development and application throughout the world in the last three decades, before going on to discuss the theoretical aspects of ACV and SES craft covering their hovering performance, dynamic trim over calm water, resistance, stability, manoeuvrability, skirt configuration and analysis of forces acting on the skirts, ACV and SES seakeeping, and the methodology of scaling aerodynamic and hydrodynamic forces acting on the ACV/SES from model test data.

The latter chapters describe a design methodology, including design criteria and standard methods for estimating craft performance, lift system design, skirt design, hull structure, propulsion systems and power unit selection. Much technical information, data, and references to further work on hovercraft and SES design is provided. The book will be a useful reference to engineers, technicians, teachers, students (both undergraduate and postgraduate), operators etc. who are involved in ACV/SES research, design, construction and operation.



  • Guides the reader on how to perform machinery and systems selection within ACV and SES overall design
  • For teachers, students (both at under- and post-graduate level), engineers and technicians involved in ACV/SES
 

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Contents

Chapter 1 Introduction to hovercraft
1
Chapter 2 Air cushion theory
48
Chapter 3 Steady drag forces
84
Chapter 4 Stability
136
Chapter 5 Trim and water surface deformation under the cushion
187
Chapter 6 Manœuvrability
205
Chapter 7 Design and analysis of ACV and SES skirts
232
Chapter 8 Motions in waves
273
Chapter 11 Determination of principal dimensions of ACVSES
377
Chapter 12 Lift system design
405
Chapter 13 Skirt design
433
Chapter 14 Structural design
458
Chapter 15 Propulsion system design
487
Chapter 16 Power unit selection
577
References
612
Index
618

Chapter 9 Model experiments and scaling laws
342
Chapter 10 Design methodology and performance estimation
353

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Page 9 - I made up an annular jet using two coffee tins, and found that the air did follow the 'predicted' path and that there was a 'predicted' gain in lift — very exciting.
Page 12 - ... design, engines and skirt arrangements at an all up weight of 165 tons. The SR.N4 commenced trials in February 1968, and made its first channel crossing from England to France on the 1 1th June, about 9 years after the historic SR.N1 crossing. SR.N4 was the first truly open-water passenger/car ACV ferry capable of allyear-round services over sea routes where wave heights of 8 to 12 feet can be encountered. It has achieved speeds in excess of 90 knots and, operated out of specially designed terminals...

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