User's Manual

Table Of Contents
ED 3100 G 110 / 02 (2011-10)
Operating Instructions
A-7 Target Handling
A RADAR.fm / 10.11.11
A-75
NACOS Platinum
Also during the trial manoeuvre the collision calculations
1)
take place, which would indicate a dangerous
target symbol in red colour as soon as the anti-collision limits are infringed.
Setting the Delay of the Simulated Manoeuvre
Use the Delay slider to set the time that is to pass before the simulated manoeuvre begins.
The future situation at the point in time defined by the delay value is now displayed in form of a
modified own ship track line ahead (along the present course direction) and the previously defined
course change is shown at a distance ahead, calculated from the present speed and the delay time.
The manoeuvre simulation itself must be controlled as described above with a movement of the Time
slider or clicking into the Time bar.
Fig. A / 17 Delay in Trial Manoeuvre
If no suitable manoeuvre can be found by means of these two settings, a speed change must be simu-
lated:
Simulation of a Speed Change
Use the Speed slider to set the speed at which the ship is to travel from the beginning of the simulated
manoeuvre onwards.
Because of the REL Vector Mode, the simulated course-change causes a change in the directions
and lengths of the target´s speed vectors.
Rules for the Avoidance of Collision Courses:
1. There must be no speed vector of any of the targets pointing towards the own ship symbol of the
trial manoeuvre.
2. All manoeuvres and parameter settings must take place in accordance with the collision avoidance
rules and good seamanship.
1)
The collision calculations of the trial manoeuvre simulation implement the same alarm limits for CPA and TCPA as
set for the normal target tracking in the Dangerous Targets group of the Settings > Targets menu.
Relative display after setting of a trial
manoeuvre which would prevent a
collision
Distance up until
the trial
manoeuvre, as
selected with
Delay
No risk of collision
(vector shows suffi-
ciently large
passing distance
from the trial
manoeuvre posi-
tion)
Trial
manoeuvre
start position
Trails are
updated in
relative mode
Heading lines and
orientation of AIS
targets remain
unchanged
Symbols moved and vectors
changed in the simulation of the
course change manoeuvre.
Radius that is set for
the trial manoeuvre
The present own
ship position