“the 'down-flooding angle' is
the angle of heel causing immersion of the lower
edge of openings having an aggregate area, in
square meters, greater than:-
(1) Vessels should comply with the
appropriate parts of chapter 4 regarding intact
stabillityin full.
(2) Current Chapter 4 requirements are to be
assessed without accounting for the added windage
of the sails. Vessels with lifting keels, should
meet the requirements of Chapter 4 in the most
onerous condition.
(3) Asymmetric ballasting is not permitted
whilst sailing
(4) Vessels shall additionally comply with
the following: