2.1 Time required from commencement of crossflooding θ
_{0} to the final equilibrium θ_{f}:
2.2 Time required to bring the ship from any angle
of heel θ to the final equilibrium θ_{f}
:
2.3 Time required from commencement of crossflooding θ
_{0} until any angle of heel θ is
achieved:
2.4 Dimensionless factor of reduction of speed
through an equalization device, being a function of bends, valves,
etc., in the crossflooding system:
where F is not to be taken as more than
1.
Values for k can be obtained from appendix
2 or other appropriate sources.
2.5 Crossflooding through successive devices
of different crosssection:
If the same flow crosses successive flooding devices of crosssection
S_{1}, S_{2}, S_{3}… having corresponding
friction coefficients k_{1}, k_{2}, k_{3}…,
then the total k coefficient referred to S_{1} is:
Σ k 
= 
k_{1} +
k_{2} · S_{1}
^{2}/S_{2}
^{2} +
k_{3} · S_{1}
^{2}/ S_{3}
^{2}…

2.6 If different flooding devices are not crossed
by the same volume, each k coefficient should be multiplied by the
square of the ratio of the volume crossing the device and the volume
crossing the reference section (which will be used for the time calculation):
Σ k 
= 
k_{1} +
k_{2} · S_{1}
^{2}/S_{2}
^{2} ·
W_{2}
^{}2 / W_{1}
^{2} + k_{3} ·
S_{1}
^{2} / S_{3}
^{2} · W_{3}
^{2} / W_{1}
^{2}…

2.7 For crossflooding through devices in parallel
that lead to the same space, equalisation time should be calculated
assuming that:
S · F 
= 
S_{1} ·
F_{1} + S_{2} · F_{2} + …

with F = 1/ for each device of crosssection S_{i}