CONTENTS 



Page 



CONVERSION FACTORS, U.S. CUSTOMARY TO METRIC (SI) 6 



SYMBOLS AND DEFINITIONS 7 



I INTRODUCTION 9 



II THE GOODYEAR FLOATING TIRE BREAKWATER SYSTEM 10 



1. Breakwater Components 10 



2. Breakwater Assembly and Anchoring 11 



3. Breakwater Costs ' 11 



III EXPERIMENTAL SETUP AND PROCEDURE ' 16 



1. Test Facility and Instrumentation 16 



2. Module Arrangement and Test Setup 16 



3. Test Procedure 20 



4. Difficulties Encountered During Tests 20 



IV EXPERIMENTAL RESULTS 23 



1. Wave Record Analysis 23 



2. Mooring Force Record Analysis 23 



3. Results 23 



4. Discussion of Results 27 



V SUMMARY AND CONCLUSIONS 41 



LITERATURE CITED 42 



APPENDIX TEST RESULTS ' 43 



FIGURES 



1 Location of flotation material and punched holes in an 



individual tire 12 



2 Assembled modular unit consisting of eighteen 14- or 15-inch 



automobile tires 12 



3 Assembly of modules for use in the FTB 13 



4 Section of assembled breakwater composed of individual modules . 14 



5 Typical anchoring arrangement for a four-module-wide FTB .... 15 



6 FTB sections before testing in CERC's large wave tank 17 



7 Large wave tank setup 18 



8 Plan view of an eight-module FTB as installed in the large wave 



tank 19 



