Figure 9.

An Illustration of the Factors Involved in the Failed
Refloating Attempt of Tuesday 20 February and the
Sucessful Refloating Attempt on Wednesday 21 February

Monday 19/02 - Vessel grounds on Saint Anne's Head Shoal. Her mean draught at the time was approx 19.3 metres. Tuesday 20/20 - During the failed re-floating the vessel is held against the shoal by the strong ebb current and carried into shallower water, finally grounding with a mean draught of about 16.6 metres. There was insufficient tug power available to pull her away from the shoal against the ebb current. Wednesday 21/02 - The vessel's mean draught, at about 12 metres, has been reduced to such an extent that she now floats clear over the shoal and can be turned by the tugs so that she is end on to the ebb current, greatly reducing the current force and allowing the tugs to pull her away.

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Prepared 1 July 1997