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A
A0
B
B0
OS0
A1
A2
A3
A4
A5
A6
A7
A8
OS1
OS2
OS3
OS4
OS5
OS6
OS7
OS8
B1
B2
B3
B4
B5
B6
B7
B8
Present own
ship position
Delay time = 5 min.
T
Dynamic 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.
Static trial maneuver
A static trial maneuver displays only the
final situation of the simulation. If you en-
ter the same trial speed, course and de-
lay time under the same situation as in
the aforementioned 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 con-
venient when you wish to know the ma-
neuver result immediately.
Note: For accurate simulation of ship
movements in a trial maneuver, own ship's
characteristics such as acceleration and
turning performance should be properly
set in initial settings at the time of instal-
lation.
To perform a trial maneuver:
1. Press the E, AUTO PLOT MENU key
on the plotting keypad followed by the
[0] key to show the ARPA 2 menu.
[ARPA 2]
1 [ARPA 1]
2 TRIAL MANEUVER
3 MARK SIZE
4 CPA, TCPA DISPLAY
5 SET DRIFT
6 GUARD RING, ACQ
LINE STABILIZE
7 SPEED REF
8 INPUT SIG CHECK
9 ARP TRACK TEST
0 INITIAL SETTING
STATIC/DYNAMIC
STANDARD/LARGE
OFF/ON
OFF/MAN
SET xxx.x°
DRIFT xx.xKT
NORTH/CRT
WT/BT
2. Press the [2] key to select 2TRIAL
MODE.
3. Further press the [2] key to select (or
highlight) STATIC or DYNAMIC trial
maneuver option as appropriate.
4. Press the ENTER key to conclude your
selection followed by the E, AUTO
PLOT MENU key to close the ARPA 2
menu.
5. Press the VECTOR TRUE/REL key to
select true or relative vector.
ORIGIN
MARK
VECTOR
TRUE/
REL
VECTOR
TIME
TARGET
DATA
TARGET
BASED
DATA
AUTO
PLOT
TRIAL
LOST
TARGET
HISTORY
6. Press the TRIAL key. The TRIAL DATA
SETTING menu appears at the screen
bottom associated with the current own
ship's speed and course readouts.
TRIAL DATA SETTING
[DYNAMIC MODE]:
SPEED (VRM) 15.0KT
COURSE (EBL) 53.6°
DELAY TIME xx.x MIN
Note: The second line reads [STATIC
MODE] in the event of a static trial
maneuver.
7. Enter own ship's intended speed,
course and delay time in the following
manner:
Speed: Set with the VRM control.
Course: Set with the EBL control.