Download (6Mb) - NERC Open Research Archive
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Step 1<br />
GEMINI takes 55Kg<br />
weight attached to 80m<br />
of sinking rope, tows<br />
VHS out to the extent<br />
of point A and drops<br />
weight to sea-bed.<br />
Step 2<br />
47Kg weight attached at<br />
point A and lowered to<br />
sea-bed.<br />
Step 3<br />
25kg weight attached at<br />
point B and lowered to<br />
sea bed.<br />
Step 4<br />
Inflatable buoy, with<br />
attached sinking rope,<br />
are detached from the<br />
marker floats which move<br />
across surface as vas<br />
adopts vertical<br />
attitude. Rope sinks<br />
when detached fro. buoy.<br />
Fig. 3.5<br />
81<br />
Inflatable buoy<br />
.l.<br />
47kg<br />
55kg<br />
GEMINI<br />
" Water<br />
depth<br />
60-65m