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5.7  Trial Maneuvering
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Trial Maneuvering in the True Vector Mode 
 
 
In the True Vector mode, calculations are performed according to the values set by Trial Speed, Trial Course 
and other features, and the result is displayed as a bold-line that represents the change of own ship’s vector as 
shown in Fig. 5-7 (an example of the course changed to the right). 
Example Fig. 5-7, the dangerous target forward left becomes safe as a result of simulation. 
The tracked target information indicates the current CPA and TCPA values regardless of the result of 
simulation. 
 
 
Dangerous target
HL
Change of symbol
as a result of
trial maneuver
HL
TRIAL
NORMAL
Route
Own ship’s vector
 
 
 
Fig. 5-7    Trial Maneuvering in the True Vector Mode