Page 275 - statbility for masters and mates

But
Second moments of areas 263
; Centre of Flotation 0:77 m or 0.77 m aft amidships (as before) Ie 13 S3 h3 2 13 60:6 33 2
;Ie 1090:8m4
ILCF Ie Ay 1090:8 51:6 0:772 1090:8 30:6
1060m4
i.e. very close to previous answer.
With this improved method the levers are much less in value. Consequently
the error is decreased when predicting LCFe and ILCF.
Summary
When using Simpson Rules for second moments of area the procedure should be as follows:
1 Make a sketch from the given information.
2 Use a moment Table and insert values.
3 Using summations obtained in the Table proceed to calculate area, LCF,
Ie , ILCF, IcL, etc.
4 Remember: sketch, table, calculation