11. Nautical charts are issued by power of the national hydrographic offices in many countries.12. Outputs are nautical charts , navigational warnings, tide and current predictions. 13. Almost all nautical charts once indicated where gas pipes run. 14. Nautical charts must be labeled with navigational and depth information.15. The atlas is composed of eight sheets of nautical charts . 16. The result of this is that scale in a nautical chart is dependent on latitude. 17. Maps treating directions, like as nautical chart and aeronautical chart, are projected by conformal projections. 18. Nautical charts produced throughout the world will show the protected zone and reflect its requirements.19. This Mercator projection would be widely used for nautical charts from the 18th century onward. 20. Conventional nautical charts are printed on large sheets of paper at a variety of scales.
