If using contacts on the Nav Map.
Place a marker at the tip of that contact, time for 3 minutes and 15 sec. then place a second mark.
Measure the distance, the distance/100 will equal the speed.
ie. 500m = 5 kts
1300m = 13 kts.
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My Mod Soup and System Specs.
"Those who would give up essential liberty to purchase a little temporary safety deserve neither liberty nor safety."
Benjamin Franklin, Historical Review of Pennsylvania, 1759
AB1TA
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