Parallel Rulers for Charts Style:450mm Parallel Ruler with correct marine markings (02205D) Constructed with powder coated cast

Constructed with powder coated cast alloy

As a sailing instructor he is also sympathetic to the difficulties which the newcomer to navigation faces

8mm diameter of material short link

Comes with splicing instructions

Parallel Rulers for Charts Style:450mm Parallel Ruler with correct marine markings (02205D) Constructed with powder coated cast(02205D) 450mm Parallel Ruler with correct marine markings Full acrylic parallel ruler with solid brass (not brass plated steel) pins plus stainless steel straps (non magnetic). The compass degree markings on one edge and mm measurements markings on the other. In use, the parallel ruler is laid on the course line of your chart and then prallel walked across to the nearest compass rose on your chart