TABLE OP CONTENTS 



Page 



ABSTRACT ' 1 



INTRODUCTION 1 



1 . THE REPRESENTATION OP SHIP PORMS 4 



1.1. The Geometry of Ships 4 



1.1.1. Graphical Method . 4 



1.1.2. Description of Coefficients and Lines 5 



1.1.3- Equations of Ship Surfaces 7 



2 . RESISTANCE 10 



5. GENERATION OP BODIES BY SINGULARITIES AS BASIS FOR CALCULATING . 



WAVE RESISTANCE 13 



4. WAVE RESISTANCE . 17 



4.1. Calculated and Measured Wave Resistance 19 



5. WAVE RESISTANCE AS A FUNCTION OP THE SHIP FORM 25 



5.1. Proportions and Shape 25 



5.2. Wave Resistance as a Function of Principal Dimensions ... 27 



5.2.1. Variation of Beam for Constant Draft H 27 



5.2.2. The Effect of Variation of Draft for Constant Beam B 29 



5.3. The Wave Resistance as a Function of the Hull Shape .... 32 



5.3 1 . General Remarks 32 



5.3-2. Longitudinal Distribution of Displacement 34 



5.4. The Influence of the Vertical Distribution of Displacement 



on the Wave Resistance 50 



5.4.1. The Influence of the Midship Section Coefficient . . 50 



5-4.2. Shape of Sections, Load Water Line and Sectional- 

 Area Curve 52 



5.4.3. Bulbs and Cruiser Sterns 54 



5.4.4. Ships of Least Resistance 57 



6. INFLUENCE OF VISCOSITY 61 



7. WAVE PHENOMENA DUE TO THE PROPELLER ACTION . 65 



8. RESISTANCE IN RESTRICTED WATER 67 



9. EXTENSION OP THEORY ..' 7I 



