141 
> 
Selection ’ 
>f data to be', 
provided I 
, 5.1.2.2.4 / 
DFD 5.1.2.2: Course and speed through water 
Assess 
/ result of 
\ companson f 
\ 5.1.2.3.3/ 
usability 
Selection' 
of data to be\ 
provided , 
5.1.23.4/ 
ROT 
DFD 5.1.2.3: Turning speed