Anemometer Meaning in Sailing

An anemometer is a mechanical instrument used to measure the speed of the wind. This device usually sits at the very top of the mast to capture clear air. It features small cups that spin faster as the wind velocity increases over the water. A navigator looks at the digital display to see the exact wind speed in knots. This data helps the crew decide which sails to use for the current weather. High readings on the anemometer signal the team to reduce the sail area for safety. Electronic versions can also calculate the direction of the wind relative to the boat. Reliable wind data allows the captain to make smart decisions during a competitive race.