PRINCIPLES OF NAVAL ENGINEERING 





a: 



< 



C 



10 20 30 40 50 60 70 80 



ANGLE OF HEEL IN DEGREES 



GZ=L4 FEET 



GZ = 2.0 FEET 



GZ = 1 FOOT 



Figure 3-12.— Righting arms of a ship inclined at successively larger angles of heel. 



FORCE OF BUOYANCY AT 



18 FOOT DRAFT AND 20° HEEL 



26 FOOT WATERLINE AT 20 ANGLE OF HEEL 



18 FOOT WATERLINE AT 20° ANGLE OF HEEL 



FORCE OF BUOYANCY AT 



26 FOOT DRAFT AND 20°HEEL 







Figure 3-13. — Effect of draft on righting arm. 

 40 



8.56 



8.57 



