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Douglas Navigational Protractor 5" - D565 rechargeable Turbo (1000 lumens) - 30

SKU 76935715754
4.8
Description

Turbo (1000 lumens) - 30 second intervals* / 130 meters

aera 6xx Series

Contact point set with wrench

GT20-TM transducer

producing 50% more energy than the Instinct 2 Solar

Douglas Navigational Protractor 5" - D565 rechargeable Turbo (1000 lumens) - 30Called "navigational" primarily because it goes continuously from 0 to 360 as a compass rose does. Use for plotting lines of position in celestial navigation or for general plotting and vector problems on plain paper that does not have a compass rose. In England and Australia it is more commonly called a Douglas Protractor, where they are popular for general plotting.

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