Page 167 - statbility for masters and mates
P. 167
Trim 155
or
(All measurements are in metres.)
Fig. 15.13(c)
associated notes, that F A is equal to the new trim (t) and since the ship was originally on an even keel, then `t' must also be equal to the change of trim.
If the angle between the new and old verticals is equal to y, then the angle between the new and old horizontals must also be equal to y (the angle between two straight lines being equal to the angle between their normals).
It will also be seen in Figure 15.13(c) that the triangles GG1ML and CDE are similar triangles.
; GML L GG1 t
GML Lt GG1
Example 1
When a weight is shifted aft in a ship 120 metres long, it causes the ship's centre of gravity to move 0.2 metres horizontally and the trim to change by 0.15 metres. Find the longitudinal metacentric height.
; GML L GG1 t
