Schlosser 



with strobe lights providing illumination. Motion pictures were ob- 

 tained by an internally-mounted lb-?*! camera with a 400-foot film 

 capacity. Film cannisters could be changed during a dive, providing 

 unlimited motion -picture coverage. A separate camera viewport 

 was located between those of the pilot and observer. Both the still 

 and motion-picture cameras had the same focal point and the frame 

 control was indexed at the observer's window. The control panel 

 was located at the scientific observer's station, providing him com- 

 plete control of the photography. 



Voice tape recorder. A tape recorder was made part of the 

 standard sphere instrumentation, providing the scientist-observer 

 with the freedom to continue vocal observations of the sea floor or 

 the experiment without interruption or loss of visual contact. From 

 past experience, the recorder reliability was deemed paramount 

 over all other basic requirements set forth for this instrument. The 

 high humidity within the personnel sphere had, in the past, precluded 

 any reliance on the availability of continuous and complete dive 

 records. The recorder selected was a battery-powered Stancil- 

 Hoffman, hermetically sealed by an "O" ring, capable of 6 hours 

 of continuous operations. The speed used was 15/16 ips. Two 

 recorders were used throughout the program, each containing its 

 own rechargeable batteries. A recharge unit was carried in the 

 equipment van aboard the support ship, which provided for one unit 

 to be on charge at all times and insured availability of power during 

 extended at -sea operations. 



Two- channel oceanographic instrumentation package. In order 

 to measure the temperature, pressure and sound speed through the 

 water column, a standard suite of instruments was carried during 

 each dive. This package was called the "2 -channel oceanographic 

 instrumentation package" and provided data recorded on tape by 

 frequency division. This information is now being correlated and 

 will provide information on anomalies which occur within the water 

 column at the various dive sites. This instrumentation package was 

 located externally and aft of the personnel sphere. The sound- 

 speed and temperature sensors were located so as to provide maxi- 

 mum exposure within the water column (see Fig. 4). 



INSTRUMENTATION TESTING 



Prior to use or installation on DEEPSTAR each instrument 

 was tested to provide as high a reliability factor as possible. These 

 tests, while not always sophisticated, did achieve the desired re- 

 sults. All electronics components were thoroughly tested within 



49 



