Section 0
F
of Merchant Shipping (Safety Convention) Regulations, 2003
4 + 0.25E (1.2 + a)
Y
J/Jmax y3
Fl =
yz--
3 1
Fl y--
3
y3
Fz =
3 2
if y < 1, otherwise;
y4
if y < 1,
12
y 1
+
otherwise.
3 12
(a)
The factor Pi is,determined for each single compartment -
li)
where the compartment considered extends over the entire ship length L 8 -
Pi 1
(ii)
where the aft limit of the compartment considered coincides with the aft terminal -
Pi "" F + 0.5ap + q
(iii)
where the forward limit of the compartment considered coincides with the forward terminal
Pi 1 - F + 0.5ap 594
(iv)
when both ends of the compartment considered are inside the aft and forward terminals of the ship length L3 -
Pi"" ap
(v)
in applying the formulae of sub-paragraphs (ii), (iii) and (iv), where the compartment considered extends over the mid-length, these formulae values shall be reduced by an amount determined according to the formula for q, in which
F2 is calculated taking y to be J'IJmax.
(2)
Wherever wing compartments are fitted, the Pcvalue for a wing compartment shall be obtained by multiplying the value, as determined in sub-regulation (3), by the reduction factor r according to paragraph (b), which represents the probability that the inboard spaces will not be flooded.
(a)
The Pcvalue for the case of simultaneous flooding of a wing and adjacent inboard compartment shall be obtained by using the formulae of sub-regulation (3), multiplied by the factor (1 - r).
(b)
The reduction factor r shall be determined by the following formulae-and
For J :s 0.2 b;B -
r - ~ c3 + _o.os ~
B l
J + 00~
+ 0.1, if bJB :S 0.2
~
r--0.016
b r =
+- + 0.36
+ 0.02
B if bJB > 0.2
For J < 0.2 bJB, the reduction factor r shall be determined by linear interpolation between -
r = 1, for J = 0
r = as for the case where J ~ 0.2 b;B, for J = 0.2 bJB
BRUNEI DARUSSALAM GOVERNMENT GAZETTE where b the mean transverse distance in metres measured at right angles to the centreline at the deepest subdivision load line between the shell and a plane through the outermost portion of and parallel to that part of the longitudinal bulk-head which extends between the longitudinal limits used in calculating the factor Pi·
(3)
To evaluate Pi for compartments taken singly, the formulae in sub-regulations (1) and (2) shall be applied directly.
(a}
To evaluate the Pi-values attributable to groups of compartments, the following applies -
(i)
for compartments taken by pairs -
Pi = Pz3 - Pz - P3 etc.
(ii)
for compartments taken by groups of 3 -
Pi
Ptz3 - Ptz - Pz3 + Pz
Pi = Pz34 - Pz3 - P34 + P3 etc.
(iii)
for compartments taken by groups of 4 -
Pi
Ptz34
Ptz3 - Pz34 + Pz3
Pi = Pz34s
Pz34 - P34s + P34 etc.
where-Ptz, Pz3, P34 etc.,
Ptz3, Pz34• P34s etc., and
P1234, Pz345, P345n etc.
shall be calculated according to the formulae in sub-regulations (1) and (2}
for a single compartment whose non-dimensional length J corresponds to that of a group consisting of the compartments indicated by the indices assigned top.
596
{b} The factor Pi for a group of 3 or more adjacent compartments equals zero if the non-dimensional length of such a group minus the non-dimensional length of the aftermost and foremost compartments in the group is greater than lmax·