LIST OF ILLUSTRATIONS 



Figure Page 



1 Generalized Arrangement for a Cable-Towed 

 Oceanographic Instrumentation System 7 



2 Towed Element System 11 



3 Depressor Developed for the Cable-Towed Under- 

 water Instrumentation System 12 



4 Cable-Fairing, Trailing Type, General 

 Arrangement c ...<>. c 15 



5 Stop and Fairing Hanger . o o 17 



6 Instrument Module Assembly o . . . 19 



7 Entwistle Mfg. Company " Caterpuller" 21 



8 Western Gear Corporation "Cable Hauler" 24 



9 a. Arrangement for Passing Module Over Stern.. 26 



b. Arrangement for Passing Module Over Stern.. 28 



10 Condition of Hanger and Stop after Completion 



of Inhaul Operation o . '36 



I-l Effect of Towing Speed on the Cable Tension 



Developed by the Depressor 1.4 



1-2 Cable Angle Developed by the Depressor as a 



Function of Towing Speed o 1.5 



1-3 Cable Tension Developed by the Depressor as a 



Function of Lower Elevator Setting , 1.6 



1-4 Short Length of the Clip-Type Fairing Used for 



Sea Trials c. . . c . . o . . . 1.12 



1-5 Test Fixture with First Instrument Housing 



Rigged for Test c, . . o c . o . . c o o 1. 20 



1-6 Test Fixture with Test Housing Rigged for 



Pressure Tests o o . . . o <. . . 1.23 



1-7 Developmental Fairing-Hanger Attached to a Short 



Length of Fairing c c ...... o .... = . o 1,27 



II-l Depressor as Tested at Sea 0....0 11.14 



i-iv 



