5-22
A8
A7
A6
A5
A4
A3
A2
A1
A0
B8
B7
B6
B5
B4
B3
B2
B1
B0
OS0
OS1
OS2
OS3
OS4
OS5
OS6
OS7
OS8
Present own ship
position
Delay time = 5 min.
A
B
T
Figure 5-13 Trial maneuver
Note that once a dynamic trial maneuver is initiated, you cannot alter own ship’s trial
speed, course or delay time until the trial maneuver is terminated.
5.16.2 Static trial maneuver
A static trial maneuver displays only the final situation of the simulation. If you enter the
same trial speed, course and delay time under the same situation as in the aforemen-
tioned example of dynamic trial maneuver, the screen will instantly show position OS7 for
own ship, position A7 for target A and position B7 for target B, omitting the intermediate
positions. Thus, the static trial maneuver will be convenient when you wish to know the
maneuver result immediately.
Note: For accurate simulation of ship movements in a trial maneuver, own ship’s charac-
teristics such as acceleration and turning performance should be properly set in the initial
settings at the time of installation.
To perform a trial maneuver:
1. Press the [PLOT MENU] key followed by the [0] key to show the ARPA 2 menu.
[ARPA (2)]
1 [ARPA (1)]
2 TRIAL MODE
STATIC/DYNAMIC
3 HISTORY
OFF/ON
4 HISTORY POINTS
5/10/20
5 HISTORY INTERVAL
30SEC/1/2/3/6MIN
6 MARK SIZE
STD/LARGE
7 GUARD, ACQ STABILIZE
NORTH/CRT
8 [INPUT SIG CHECK (1)]
9 [ARPA TRACK TEST]
0
Figure 5-14 ARPA 2 menu