Chart Correction Tools - Navigation and Communication

Chart correction tools are manual instruments and accessories used by deck officers and navigators to plot positions, measure courses and distances, and apply corrections to nautical charts and publications. Typical items include dividers, parallel rulers, pencils, erasers, magnifiers, correction pens, and chartwork templates.

ProShipWorks provides end-to-end support to source and supply Chart Correction Tools for marine vessels, ship operators, industrial facilities, maintenance teams and procurement departments.

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Product Information

Product Name Chart Correction Tools
Product Category Navigation and Communication
Product Reference 777
Brands / Manufacturers Weems & Plath, E.S. Ritchie, Breton
Unit of Measure Set

Key Features

Key Feature
1.   Accurate course and distance measurement on paper charts
2.   Suitable for chart correction and navigation plotting
3.   Corrosion-resistant metal or marine-grade plastic construction
4.   Clear markings and readable graduations
5.   Portable and suitable for bridge or chartroom use

Applications of Chart Correction Tools

Application
1.  Manual plotting on paper nautical charts
2.  Updating charted information using Notices to Mariners
3.  Measuring bearings, courses, distances, and chart positions

Standards, Certifications & Class Approval

Review the available standards and approval information relevant to the product. Actual certification, material traceability, inspection and classification requirements depend on the product type, intended application and purchasing specification.

Applicable Standards & Certification Chartwork should support SOLAS Chapter V Regulation 19 carriage requirements and applicable IMO/IHO guidance. Admiralty chart corrections commonly follow UKHO NP294 procedures and relevant IHO S-4 and M-4 specifications. Individual manual tools generally have no dedicated product certification.
Class Approval Individual chart correction instruments normally do not require type approval from DNV, ABS, Lloyd's Register, BV, or ClassNK. Their use may be assessed within the vessel's approved navigation procedures and safety management system.

Installation, Maintenance & Safety Information

Installation Notes No permanent installation is normally required. Keep tools in a dry, accessible chartroom or bridge navigation drawer. Verify that rulers, dividers, templates, and correction instruments are clean, undamaged, and suitable for the chart scale.
Maintenance Tips Wipe instruments after use and keep metal components dry to prevent corrosion. Check hinge tension, ruler markings, divider points, and magnifier surfaces regularly. Replace worn pencils, blunt points, damaged rulers, and illegible templates.
Safety Notes Use sharp dividers and compass points carefully and store them with protective covers. Do not rely on corrected paper charts alone where approved electronic navigation systems are required. Confirm chart edition, correction status, and navigational warnings before use.

Request a Quote for Chart Correction Tools

Contact ProShipWorks for marine or industrial product sourcing, quotations and delivery.

  • Vessel name and IMO number
  • ETA / vessel schedule
  • Berth or vessel location
  • Required quantity
  • Preferred delivery window
  • Shipping agent contact details

Other Navigation and Communication Products

Explore our range of marine and industrial Navigation and Communication products available for sourcing and supply through ProShipWorks.

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