The main deck is 1,200 sq. ft. from the aft bulkhead of the cabin to the transom. There are 16 ft. wide bulwark openings on the transom and 2 openings port (4’) and starboard (7’5”) aft of the cabin. Tie-downs are located centerline in the deck on approximately 2’ and 4’centers. Located along the aft bulkhead of the main cabin are: ship’s power (208V 3phase 30 and 60 amp, 277/480V 3phase 40 and 50 amp, 120V single phase 20 amp), running seawater (total capacity: 15 gpm and 100 gpm seawater located on port and starboard), fresh water, and 120 psi compressed air. Over-the-side handling gear includes a trawl winch/A-frame, J-frame and crane. An access to a void compartment for storage of large scientific gear (boxes and containers) is located starboard aft.