2024 Capt'n Jack's Bristol Bay- Out Now!


#113 Course & Leg Identifier for Search & Rescue

Weems & Plath

Weems Plath-113

The Weems and Plath, Course and Leg Identifier is a marine plotter perfect for expanding square patterns and sector pattern searches.


For expanding square pattern and sector pattern searches. Also known as Search Pattern Slide Rule or Coast Guard Plotter, this tool is a in.must havein. for active duty US Coast Guard, Auxiliarists or anyone required to run a search pattern. Quickly calculates heading and run time for each leg or either an expanding square pattern or sector pattern search, allowing more time to focus on search. Lifetime warranty. NSN: 6605-01-552-2931.


  • Search pattern slide rule
  • Coast Guard Plotter
  • Calculates heading and run time