8 Arrival in port in a very lightly ballasted
state should be avoided as such conditions can have detrimental consequences
on manoeuvrability and structural strength. Manoeuvrability can be
significantly affected by a large trim associated with a very light
ballast condition, for example by increasing bodily drift and difficulty
in swinging the ship in windy conditions, decreasing turning performance
and increasing difficulty in maintaining the ship's course and position
under the actions of wind and currents. In terms of hull structures,
loading cargo in a shallow draught condition can impose high stresses
in the double bottom, cross deck and transverse bulkhead structures
if the cargo in the holds is not adequately supported by the buoyancy
up thrust.
9 In developing the loading plan, and determining
the arrival condition, consideration should be given to manoeuvrability
issues and local loading criteria in the loading manual.