Cras navigation rules

The Cras rule is by far the most widely used navigation instrument in France as it has been used for almost 100 years by the French Navy and the Merchant Navy. The Cras ruler is used in maritime navigation or for pleasure boating, both in coastal and offshore navigation and even in the case of astronomical navigation in addition to the sextant. Professional sailors and skippers choose this easy and practical tool to plot and measure a course on the nautical chart and to take bearings taken on the landmarks with the compass. Made up of two inverted plotters, the Cras rule is used for measuring and plotting routes and bearings. The principle of use is simple, on a meridian or a parallel, it is necessary to align the center of the plotter the most "southern" on the map with the angle of the road to be traced or measured. Picksea offers 6 models of Cras Rules from its Flash-Tide Instruments brand which are distinguished by the colours of the graduations (black, bicolour red and black or tricolour red, black and green) or by the design of the rule. What differentiates our cras rules from competing models is that they all include features to facilitate reading and use on the chart: these models are exclusive and registered by Picksea.

Read more

There are 8 products.

Active filters

  • <h2>Flash-Tide - Cras 2000 two-tone ruler</h2> <p style="text-align:justify;">The Flash-Tide Crash Ruler 2000 is a two-tone red and black crashed ruler that is very popular with boaters and offshore license applicants because it is more practical and easier to read than traditional crashed rulers.</p> <h2>Details of the Cras 2000 rule</h2>
    available
    FLASH-TIDE

    Cras 2000 Ruler

    • €14.08
    In stock
    Customize
  • <h2>Polaris Tricolour Ruler</h2> <p style="text-align:justify;">The three-colour red, green and black cras ruler is very popular with boaters and boat licence applicants because it is more practical and easier to read than traditional cras rulers.</p> <h2>Features of the Polaris Ruler</h2>
    available
  • <h2>Standard Cras Rule</h2> <p style="text-align:justify;"><span>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.</span></p> <h2><span>Features of the Standard Cras rule</span></h2>
    available
    FLASH-TIDE

    Standard Cras Ruler

    • €12.92
    In stock
    Customize
  • <h2>Rule Type Cras</h2> <p style="text-align:justify;">A two-coloured red and black cras ruler with a special design that makes it easier to read than other cras rulers.</p> <h2>Characteristics of the Cras Type Rule</h2>
    available
    FLASH-TIDE

    Rule Type Cras

    • €14.08
    In stock
    Customize
  • <h2>The parallel ruler: the most traditional way to measure your routes and bearings</h2> <p>The parallel ruler is the oldest and most traditional way to measure and trace routes and bearings. The principle is simple: the ruler is placed on the road to be measured and then, like a pantograph, the other part of the ruler is placed on one of the declination roses on the map to determine the angle.</p> <h2>Features of the Flash-Tide parallel ruler</h2>
    available
    FLASH-TIDE

    Navigation parallel ruler

    • €13.50
    In stock
    Customize
  • <h2 id="prod-h1" class="prod-name">Ruler and Compass Dry Point Kit</h2> <p style="text-align:justify;"><span>Set of equipment to prepare for the offshore licence or to equip your boat, including a cras 2000 ruler (Flash-Tide) and a dry point compass (Flash-Tide)</span></p> <h2 style="text-align:justify;"><span>Features of the Ruler and Compass Kit</span></h2>
    available
    FLASH-TIDE

    Cras Ruler and Divider Kit

    • €25.00
    In stock
    Customize
  • <h2>The Jean Cras 3 mm ruler from Topoplastic</h2> <p style="text-align:justify;">The Jean Cras ruler manufactured by Topoplastic is approved by the Merchant Navy, the National Navy, the Civil Aviation and the Air Force for work and calculations on maps. The rights of the name Jean Cras are exclusive to the Topoplastic company.</p> <h2>Detailed characteristics of the ruler</h2>
    available
    TOPOPLASTIC

    Jean Cras ruler plexi 3 mm

    • €23.75
    Shipped within 7 days
    Customize
  • <h2>All the possibilities of the Cras rule and the Rappporteur Breton</h2> <p style="text-align:justify;"><span>The Antares protractor ruler is both a tricolour Cras ruler AND a Breton protractor. It can be easily adapted to any skipper or sailor, whatever his or her initial training or practice habits. </span></p> <h2>Features of the Antares rule</h2>
    available
    FLASH-TIDE

    Cras Reporter Rule / Breton Antares

    • €20.83
    Shipped according to supplier's deadline
    Customize

Showing 1-8 of 8 item(s)