Detailed features
Standard Cras Rule
This black ruler is very popular with boaters and boat license applicants because it is more practical and easier to read than other brands of rulers.
Features of the Standard Cras rule
The Standard Cras Rule is a model of black ruler very appreciated by the boaters and the candidates of the boat licences because it is more practical and readable than the traditional cras rules. Indeed, our brand Flash-Tide Several years ago, he carried out research and design work (patented) on the overlapping of the two retrievers, which makes our Cras navigation rules a reference, particularly for nautical and maritime training and the preparation of the offshore licence.
The Cras Standard rule consists of two black protractors for measuring and plotting routes, one for bearings from 0° to 180° and the other for bearings from 180° to 360°. The black colour only allows a use under red light at night on the map table. The principle of use is simple, on a meridian or a parallel, it is necessary to align the center of the protractor the most "southern" on the chart with the angle of the road to be traced or measured.
The Cras Standard rule also has two distance scales in miles: a scale for 1:50,000 maps (such as the SHOM chart 9999 for the offshore licence) and a universal scale in centimetres.
All our Cras rulers are manufactured on a crystal clear PVC support marked with a process that makes the ruler's graduations and markings unalterable.
The product includes a instructions for use and access to online tutorials on PickseaVideo.
The Flash-Tide navigation rulers are designed and manufactured in France by Picksea.
- Dimensions: 380 x 110 mm
- PVC support
- Black graduation
- 2 distance scales in Miles: 1/50.000 and Centimeters
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