7.1.1 Generally, machinery installations should
comply with the requirements given below. Other installations proposed
may be specially considered, provided that full information is presented
to and approved by the Administration.
7.1.2 In motor vessels, the main propulsion machinery
and all auxiliary machinery essential to the propulsion and the safety
of the vessel should be designed to operate when the vessel is upright
and when inclined at any angle of heel and trim up to and including
15 degrees and 7.5 degrees respectively either way under static conditions.
7.1.3 In sailing vessels, the main propulsion
machinery and all auxiliary machinery essential to the propulsion
and the safety of the vessel should be designed to operate when the
vessel is upright and when inclined at any angle of heel up to and
including 15 degrees either way under static conditions and 22.5 degrees
either way under dynamic rolling conditions and simultaneously inclined
7.5 degrees by bow or stern under dynamic pitching conditions.