Lars Larsson, a naval architect, is a professor of hydrodynamics at Chalmers University of Technology, in Gothenburg, Sweden.
Rolf E. Eliasson, a yacht design/construction engineer specializing in boat structures, runs his own yacht design company.
Preface to the Second Edition | |
List of Symbols | |
Introduction | |
Design Methodology | |
The design spiral | |
Computer aided design (CAD) | |
Preliminary ConsiderationsChoice of boat-type | |
Intended use | |
Main dimensions Cost | |
Checklist of considerations | |
Checklist for the YD - 40 | |
Hull Geometry Definitions | |
Lines drawing | |
Tools Work plan | |
Computer aided design of hulls | |
Hydrostatics and Stability | |
Calculation of areas Wetted surface | |
Displacement Centre of buoyancy | |
Water plane area | |
Transverse and longitudinal stability at small angles | |
Transverse stability at large angles of heel | |
Curve of static stability | |
Rolling Influence of waves on the righting moment | |
Stability statistics Assessment of seaworthiness | |
Hull Design Forces and moments on a sailing yacht | |
Resistance components | |
Viscous resistance, basic concepts | |
Frictional resistance | |
Viscous pressure resistance | |
Roughness Wave resistance, basic concepts | |
Influence of hull shape on wave resistance | |
Heel resistance | |
Added resistance in waves | |
Other seakeeping aspects | |
Hull statistics | |
Keel and Rudder Design Flow around a wing | |
Definition of the keel planform | |
Classical wing theory | |
Tip shape | |
Advanced planform design | |
Evaluation of some planform concepts | |
Definition of the section | |
Three useful NACA sections | |
Influence of shape on section characteristics | |
Some practical conclusions regarding section shape | |
Influence of deviations from the theoretical section shape | |
Advanced section design | |
Statistics on keel and rudder area | |
The YD - 40 | |
Sail and Rig Design Flow around sails | |
Planform Sail camber | |
Mast interference | |
Means for reducing mast distubances | |
Streamlining | |
A practical model for sail and rig aerodynamics | |
Sail statistics | |
Balance Effect of heel | |
Good balance | |
Centre of effort of the underwater body | |
Centre of effort of the sails | |
Lead Rudder balance | |
Propeller and Engine | |
Resistance in calm and rough weather | |
Propeller characteristics | |
Design of an optimum propeller | |
Performance of the non-optimum propeller Check of blade area | |
Propeller resistance | |
High Speed Hydrodynamics Planing Deadrise | |
Forces on a planing hull | |
Spray rails, stepped bottoms and transom flaps | |
Dynamic stability | |
Alternative propulsion devices | |
An example | |
Rig Construction Definitions and scope of the standard | |
Forces on the shrouds | |
Forces on the stays | |
Comparison between wire and rod | |
Transverse mast stiffness | |
Longitudinal mast stiffness | |
Fractional mast top | |
Boom Spreaders | |
The YD - 40 rig | |
Hull Construction | |
Concepts in structural mechanics Global loads | |
Local hydrostatic loads | |
Local hydrodynamic loads | |
Transverse load distribution | |
Local deformations | |
Forces from the keel | |
Forces from grounding | |
Forces from the rudder | |
Summary of loadings | |
Materials Glass reinforcement | |
Wet laminates | |
Fatigue Exotic laminates | |
Sandwich Typical sandwich buckling | |
Sandwich bending Sandwich in practice | |
Final remarks | |
Scantling Determination | |
Structure of the ISO Standard | |
Hull definitions | |
Basic laminate | |
Design loads for the bottom | |
Design loads for the topsides | |
Design loads for the decks and bulkheads | |
Design loads for the internals | |
Longitudinal impact distribution factor | |
Area reduction factor | |
Panel calculation | |
Stiffener calculation | |
Spade rudder stock | |
Chainplates and keelbolts | |
Sandwich construction | |
The YD - 40 scantlings | |
Layout Generic space requirements | |
Accomodation Deck layout | |
Design Evaluation Non-dimensional parameters | |
The Velocity Prediction Program (VPP) Towing | |
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