User's Manual

ED 3038 G 232 / 01 (2002-06)
Operating Instructions
10 Trial Manoeuvres
10.3 Setting the Trial Manoeuvre in Relative Display Mode
b_r1_e28.fm / 21.06.02
81
RADARPILOT / CHARTRADAR
Setting the Time Instant of the Simulated Manoeuvre
Click on the DELAY area, use the trackball to set the time that is to
pass before the simulated manoeuvre begins, and press the DO key
for the second time.
☞ The situation at the point in time defined by the delay value is
now displayed. The own ship symbol and the target vectors
have been shifted accordingly. If the display of the past position
plot is switched on, the shifted target-vectors can be assigned to
the targets by means of dashed lines.
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
Click on the SPD area, use the trackball to set the speed at which
the ship is to travel from the beginning of the simulated manoeuvre
onwards, and press the DO key for the second time.
☞ Because of the relative display mode, the simulated course-
change causes a change in the directions and lengths of the
target vectors. The display is based on the simplifying assump-
tion that, from the beginning of the manoeuvre onwards, the ship
travels at the set speed.
Rules for the Avoidance of Collision Courses:
1. There must be no target vector 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.
DELAY
1.DO
8 min
3.DO
2.
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 position)
Vectors and past position plots
have rotated in the simulation of
the course change
Trial manoeuvre
position
Trails remain
unchanged
SPD
1.DO
13 kt
3.DO
2.