TABLE OF CONTENTS 



page 



ABSTRACT 1 



INTRODUCTION 1 



PERFORMANCE CHARACTERISTICS OF THE TMB PLANING FLOAT 3 



DESIGN OP THE TMB PLANING FLOAT 4 



SUMMARY OP PREVIOUS DATA AVAILABLE FOR THE TMB 



PLANING FLOAT AND PURPOSE OF PRESENT TESTS 6 



TEST METHODS AND TECHNIQUES 7 



RESULTS OF TESTS OF TMB PLANING FLOAT 



UNDER VARIOUS LOADING CONDITIONS , 12 



THE HYSTERESIS REGION IN TRANSITION 



THROUGH THE AIR -WATER INTERFACE . . • 24 



A HYPOTHESIS FOR THE STRIATION PHENOMENON 27 



ANALYSIS OF THE DATA IN THE PLANING REGIME 30 



PERFORMANCE CHARACTERISTICS OF THE TMB DISPLACEMENT FLOAT 3^ 



DESIGN OF THE TMB DISPLACEMENT FLOAT 3^ 



TECHNIQUES AND RESULTS OP TESTS OF 



THE TMB DISPLACEMENT FLOAT 36 



DISCUSSION AND ANALYSIS OF THE 



TMB DISPLACEMENT-FLOAT DATA 39 



COMMENTS ON THE USE OF THE TMB DISPLACEMENT-FLOAT 



DATA FOR DESIGN PURPOSES 42 



CONCLUDING REMARKS 43 



REFERENCES . 44 



APPENDIX 1 - TESTS OF THE NAV^L MINE WARFARE TEST STATION FLOAT ... 46 



DESCRIPTION OF THE NMWTS FLOAT 46 



RESULTS OP THE NMWTS FLOAT TESTS 47 



APPENDIX 2 - TMB PLANING FLOAT AND NMWTS FLOAT APPLIED TO 



A CATENARY MINESWEEPING ARRANGEMENT 49 



ORIGINAL SPECIFICATIONS 49 



PROCEDURE IN FULL-SCALE SWEEPING OPERATIONS 50 



OBSERVATIONS MADE DURING THE FULL-SCALE TRIALS 51 



APPENDIX 3 - SUBMERGENCE PRESSURE TESTS ON THE TMB PLANING FLOAT ... 53 



PURPOSE AND SCOPE OF THE TESTS 53 



RESULTS OP THE SUBMERGENCE TESTS 55 



APPENDIX 4 - NOTES ON THE CONSTRUCTION OF THE BALSA-WOOD FLOAT .... 57 



PROCEDURE IN CONSTRUCTION OP BALSA-WOOD FLOAT 57 



NOTES ON THE USE OF BALSA WOOD AS A FLOAT MATERIAL 58 



