12" Brushed Aluminum Arms Parallel Rule (Weems & Plath 140) Ship Building the current version of the

the current version of the flag was adopted

NOAA Nautical Chart 12318: Little Egg Inlet to Hereford Inlet

NOAA Nautical Chart 25677: South Coast of Puerto Rico Guanica Light to Punta Tuna Light

British Admiralty Nautical Chart 826: Yangon (Rangoon) River to Heinze Islands is a standard nautical chart

reducing the risk of alarm fatigue among crew members

12" Brushed Aluminum Arms Parallel Rule (Weems & Plath 140) Ship Building the current version of theThis sturdy 12 inch (30. 48cm) parallel ruler with brushed aluminum arms is enscribed with a protractor scale. It is used to plot direction on a nautical chart from any convenient meridian or compass rose. The two straight edged rulers are connected to maintain the same angle. By walking the rules across the chart and securely holding down the non moving ruler, you can effectively plot a course. 12 inches (30. 48cm) long Includes protractor scale