3.7.1 This subsection should contain a precalculated
table from which the master can determine whether the stability of
the ship is acceptable for a given loading condition under the governing
stability criteria. This information should preferably show the maximum
allowable height of the loaded ship's centre of gravity KGc,
i.e. appropriately corrected for free surfaces, against the reference
keel draught TKC.
If the maximum allowable KGc depends on specific
parameters, e.g. height of deck cargo, layers of containers on deck,
trim, or other conditions of service, the table or tables should provide
for any suitable combination of limiting KGc values. If,
in particular the trim is considered not to influence the limiting
KGc values, this should be clearly stated.
The range of data should extend from the lightest anticipated
seagoing draught to the minimum freeboard assigned. An example for
such table is given below:
|
TKC
|
Maximum permissible KGc for any operating trim (m)
|
|
m
|
no containers on deck
|
1 tier deck containers
|
2 tier deck containers
|
3 tier deck containers
|
4 tier deck containers
|
|
.
|
.
|
.
|
.
|
.
|
.
|
|
.
|
.
|
.
|
.
|
.
|
.
|
| 5.20
|
9.05
|
9.05
|
9.05
|
8.99
|
8.85
|
|
.
|
.
|
.
|
.
|
.
|
.
|
|
.
|
.
|
.
|
.
|
.
|
.
|
3.7.2 The alternative presentation of minimum
values of metacentric height, corrected for free surfaces, as a determining
parameter of compliance with stability criteria should not be used
for ships where stability management is likely to incorporate the
in-service inclining test. The presentation, however, of maximum KGc values as limiting parameters will prompt the user to obtain
the actual KGc from the measured GMc. In the
case of notable trim, the user should utilize KM for trimmed condition.
3.7.3 The angle of down flooding, as defined in
paragraph 3.2.2.1.5 of the Intact Stability Code, should be tabulated
against the reference keel draught TKC for the ship on
even keel or design trim over the range defined under 3.7.1. The critical
openings should be identified together with their co-ordinates to
the common reference planes.
3.7.4 A separate set of information should, in
the form of suitable tables and/or diagrams, provide the appropriate
damage stability criteria. The form of presentation should be similar
to the presentation of the intact stability criteria as far as practicable.