Rule of Thumb

GAUGING THE SPEED OF ANOTHER BOAT

To gauge the speed of another boat, choose a point on the horizon that is behind the other boat and ...

To gauge the speed of another boat, choose a point on the horizon that is behind the other boat and check how its bow moves relative to this point. If its bow appears to move ahead of the point, the other boat is moving faster than yours; if its bow appears to move backwards, your boat is going faster. If there is no relative movement, and your boats are on intersecting courses, you’re in for a collision. — Evan Gamblin, Carleton Place, Ontario, Canada

09/24/14

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