1.16 Collision Assessment by | 1.17 Measuring Range and |
the Offset EBL | Bearing Between Two Targets |
The origin of the No.1 EBL can be placed any- where with the trackball to assess the risk of col- lision, as well as to measure the range and bearing between two targets.
1)Press the EBL ON key to turn on (or activate) the No.1 EBL.
2)Press the CURSOR OFFSET key.
3)Operate the trackball to place the No.1 EBL origin on the target.
4)Operate the EBL control to pass the No.1 EBL through the screen center.
You can anchor the EBL, to continue monitoring target’s track, by pressing the CURSOR OFFSET key again. If the target tracks along the No.1 EBL toward the screen center, the possibility of colli- sion exists.
No.1 EBL
Target
(initial position)
70.0°R
EBL
No.1
EBL bearing
Figure 1-14 How to assess risk of collision
Canceling the cursor offset
Press the CURSOR OFFSET key to return the No.1 EBL origin to the screen center. (Each press- ing of the key links the offset EBL with the cur- sor, anchors the offset EBL, or returns No.1 EBL origin to the screen center.)
The range and bearing between two targets, for example, targets A and B in Figure
1)Press the EBL ON key to turn on (or activate) the No.1 EBL.
2)Press the CURSOR OFFSET key.
3)Operate the trackball to place the No.1 EBL origin on target A.
4)Operate the EBL control to pass the No.1 EBL through target B.
5)Press the VRM ON key to turn on (or acti- vate) the No.1 VRM.
6)Operate the VRM control to place the No.1 VRM on the inside edge of target B.
Range and bearing between the two targets ap- pear in the cursor data window at the bottom of the display.
No.1 EBL
B
A | No.1 VRM |
70.0°R | 4.5NM |
EBL | VRM |
No.1 EBL | No.1 VRM |
bearingrange
Figure 1-15 Measuring range and
bearing between two targets
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