Upper Deck 

 (Level 4) 



Time-lapse camera and con- 

 vex mirror, used in horizontal 

 current and sea-surface slick 

 studies, are mounted atop the 

 40-foot mast. 



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UPPER DECK INSTRUMENT PLATFORM 



1. Ladder 8. 



2. Deck lights 9. 



3. I-beam booms 10. 



4. Air compressor 11. 



5. Mast, mirror, and anemometer 12. 



6. Auxiliary power supply (for 13. 

 foghorn and navigation lights) 14. 



7. Nitrogen tanks 



Power junction box 



Transformer 



Loading boom 



Storage areas 



Intake for fresh water supply 



Hoist 



Air storage tank 



124 



