Assuming your using Imperial measurments and have map contact updates on:
-Plot out your targets track.
- Place a mark at the bow of the target on the map.
- Click the stop watch, and let it run 3 mins. (you can up the TC to make this go by faster)
- At the 3 mins on the stop watch, place another mark at the bow of the target on the map.
- Grab the ruler tool and draw a line from one mark to the next.
- Take the measured number at the 2nd mark, and mulitply it by 2. This is your targets course.
Example:
I place a mark.
*TICK TICK TICK* for 3 mins. (since im impatient i up the TC and watch the needle on the chrnomoter whirl around the 120clock position 3 times)
I then place another mark.
I draw my line from mark to mark and it comes out to be 0.4 NM.
0.4 *2 is 0.8. My target speed is 8 kts.
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