Page 241 - statbility for masters and mates

Angle of loll 229
At the angle of loll:
or
If then
Fig. 24.2
GZ o ; either siny o
GM 12 BMtan2y o sin y o
y o
But then angle of loll cannot be zero, therefore:
GM 12 BMtan2y o
12 BMtan2y GM
BM tan2 y 2 GM tan2 y 2 GM
BM
r
2 GM BM
The angle of loll is caused by a negative GM, therefore:
tan y
or
tan y
r
tan y
r
2GM BM
2 GM BM