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7 Cards in this Set
- Front
- Back
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3 Minute Rule - Formula |
D=Sx100. The distance of travel of a ship in yards in three minutes is equal to its speed in knots multiplied by 100 Speed (kts) * 100 = Distance (yds) traveled in 3 minutes |
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6 Minute Rule - Formula
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D=S/10. The distance of travel of a ship in nautical miles in six minutes is equal to its speed in knots divided by 10. Speed (kts) / 10 = Distance (NM) traveled in 6 minutes |
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Nautical Mile (NM) = 2000 yards (yds) 1 knot (kt) = 1 NM / hr = 2000 yds/hr (this is the equivalent to MPH) |
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3 Minute Rule - Decimal
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MOVE THE DECIMAL TO THE RIGHT TWO PLACES – ANSWER IS IN YARDS MOVE DECIMAL TO THE LEFT TWO PLACES - ANSWER IN KNOTS |
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6 Minute Rule - Decimal |
MOVE THE DECIMAL TO THE LEFT ONE PLACE – ANSWER IS IN MILES MOVE DECIMAL TO THE RIGHT ONE PLACE - ANSWER IN KNOTS |
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3 Minute Rule - Example
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If traveling 20 knots, the distance you've traveled in 3 minutes is as follows: 20kts *100 = 2000yds for 15 knots, 15kts * 100 = 1500yds |
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6 Minute Rule - Example
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If traveling 20 knots, the distance you've traveled in 6 minutes is as follows: 20kts / 10 = 2NM for 15 knots: 15kts / 10 = 1.5NM |
