CONTENTS 



I. HISTORY - AND DEVELOPMENT 1 



II. OPERATING INSTRUCTIONS: 



A. Assembling Staff and Preparing for Lowering 9 



B. Calibration and Test Procedure. . • • • 10 



C. Lowering and Operating the Electric Wave Staff. . • • • 10 



D. Retrieving the Electric Wave Staff. . U 



E. Recording Wave Staff Data .••••• • 12 



III. RECOMMENDATIONS . . , 12 



IV. ACKNOWLEDGEMENT 12 



V. BIBLIOGRAPHY 13 



APPENDIX 15 



FIGURES 



1. Electric Wave Staff .......... 2 



2. Step-Resistance Gage Section. ••••«« • 3 



3. Shipboard Electrical Circuit 5 



U. 2lt-Second Portion of Wave Trace Obtained With Wave Staff. « . 6 



J>. Calibration Curve — ^0-Foot Damping Disk System 7 



6. Modified Step-Resistance Gage •••••••••••..... 17 



