1 In order for ships to comply with the performance
requirements stated in SOLAS regulations
II-1/29.3.2 and 29.4.2, they should have steering gear capable
of meeting these performance requirements when at their deepest seagoing
draught. In order to demonstrate this ability, the trials may be conducted
in accordance with section 6.1.5.1 of ISO 19019:2005 (Seagoing vessels
and marine technology – Instructions for planning, carrying
out and reporting sea trials).
2 On all occasions when trials are conducted with
the ship not at the deepest seagoing draught, the loading condition
can be accepted on the conditions that either the rudder is fully
submerged (at zero speed waterline) and the ship is in an acceptable
trim condition, or the rudder load and torque at the trial loading
condition have been reliably predicted and extrapolated to the full
load condition, to the satisfaction of the Administration or recognized
organization.
3 In any case, for the main steering gear trial,
the speed of the ship corresponding to the number of maximum continuous
revolution of main engine and maximum design pitch applies.