NAVWEPS 00-8OT-80 
STABILITY AND CONTROL 
POSITIVE STATIC STABILITY 
TENDENCY TO RETURN 
TO EOUILIBRIUM 
L EOUILIBRIUM 
TENDENCY TO CONTINUE 
IN/DISPLACEMENT DIRECTION 
\ 
NEGATIVE STATIC STABILITY 
EOulLlBRlUM ENCOUNTERED 
AT ANY POINT OF DISPLACEMENT 
1 
(-1 
Figure 4.1. Static Stability