Document ID: chunk:federal_register_of_legislation:F2019C00887:reg:6:p3
Version: federal_register_of_legislation:F2019C00887
Segment Type: reg
Provision Reference: reg 6 (pt 3/4)
Character Range: 91405–94007

lateral area of the vessel above the waterline, in m2.
H is the vertical distance between the centroid of the lateral area of the vessel above the waterline and the centroid of the vessel's underwater lateral area.
Note   For many vessels the vertical position of the centroid of the underwater lateral area may be taken at half the draft to the underside of the keel at amidships.
      (2) The heeling lever due to the effect of wind at 40° is:
0.8 × heeling lever due to the effect of wind at 0°.
      (3) The heeling lever curve is a straight line joining the heeling lever at 0° and the heeling lever at 40°.

1.4 Illustration of stability requirements
       where:
FF1 is the heeling lever curve due to the combined effects of wind and the shift of livestock and fodder.
LF is the heeling lever at 0° due to the effect of shift of fodder.
LL1 is the heeling lever curve due to the combined effects of the wind and the shift of livestock.
WL is the heeling lever at 0° due to the shift of livestock.
WW1 is the heeling lever curve due to wind.
OW is the heeling lever at 0° due to wind.
 is the angle of heel due to wind.
Note   If fodder is not pellet feed carried in bulk, the heeling lever due to shift of fodder will be zero.
Part 2 Information to be provided on vessel

2.1 Livestock shift constant
       The livestock shift constant is to be determined for all conditions of pen utilisation that may arise in practice, unless the maximum value is used for all calculations.
Note   The livestock shift constant will vary for different configurations of pen utilisation eg. the constant will vary depending on the species of livestock carried.

2.2 Heeling moment for fodder
       The heeling moment for fodder must be provided by either:
       (a)   determining separately the heeling moment for each compartment; or
       (b)   determining the greatest heeling moment for all compartments added together.
Note   The greatest heeling moment for all compartments added together is also the total heeling moment for the worst condition of stability.

2.3 Wind effect
       For subclause 1.3(1):
(a) A and H will vary with the draft of the vessel; and
(b) either:
 (i) their values must be given for the range of drafts that may occur in practice; or
 (ii) the heeling lever due to the effect of wind at 0 may be given in tabular or graphical form.
Part 3 Example

3.1 Purpose of Part
      (1) This Part provides an example of calculations to demonstrate compliance with subsection 11(1).
      (2) Other methods for demonstrating compliance may be used.

3.2 Information required
Item