Norrbin 



if'/s Y' ?' 



Fig. 42. 98 000 tdw tanker— Computer predictions of 20" rudder 



step response in deep and shallow water. Approach speed 

 7. 6 knots. 



i'.-6r 



Fig, 43. 98 000 tdw tanker — Computer predictions of 10^ course 

 change manoeuvres by use of auto pilot knob setting. 

 Two speeds in deep water. 



894 



