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Object Record

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Catalog Number 2014.058.003
Object Name Speedometer
Description To measure the speed of a ship, an arrow acts as a speedometer. A long rope was tied to the arrow which was dragged behind the ship. There were knots tied to the rope in certain increments. As the rope was pulled off the ship, the "counter" would count the number of knots in a particular amount of time. This would tell the captain how fast they were traveling, knots per hour.
Caption arrow - for calculating knots per hour
Credit line Donated by Ann Z. Hickey, July 2014
People HAUGEN, Thorston "Tom" Captain
Search Terms arrow
rope
Subjects Tool & Equipment