See Figures B and C.
1.4.1 Determine if spoil will spill over the hopper coaming, i.e.
if the volume of the cargo in upright position is greater than Vmax for
the particular angle of heel.
If not, the total displacement is not
changed from that in the upright position, then proceed as indicated in 1.4.3.
If spoil will spill over the hopper coaming, proceed as indicated in 1.4.2.
1.4.2 Determine for the given Vh (=Vmax) the
value of yh from the graph, Figure B.
Determine for the displacement the value of
ys from the graph, Figure C.
If yh> ys, proceed as indicated in 1.4.3;
if yh < ys, proceed as indicated in 1.4.4.
1.4.3 Calculation of the righting levers when water will not
penetrate yh> ys.
Determine for the given Vh the value of from the graph, Figure B.
Determine for the given the
value of from the
graph, Figure C.
Then the righting lever is:
1.4.4 If yh < ys, water will penetrate
into the hopper, then:
Determine the new value of ys based on .
Repeat this calculation,
until the difference between the assumed ys and the calculated
ys is neglectible small, then equilibrium is reached.
Now proceed as indicated in 1.4.5.
1.4.5 Calculation of righting levers when yh <
With the values of ,
Vh and Vw the following data can be calculated;
= f (), Figure C
= f (Vh),
f (Vw), Figure B (identical to = f (Vh), where Vw =
Usually yh < ys occurs only at large angles of heel.