International Association of Lighthouse Authorities

RD
by Ryan Dumpa14 views·Updated Apr 28, 2021
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  1. So for today, we are going to be talking about
  2. the International Association of Lighthouse Authorities, also known as the
  3. A. L.
  4. A. Boys are essentially navigation to be exact.
  5. They are floating aids to navigation.
  6. They're general purpose is ensuring the safety of ships navigating
  7. near the coast.
  8. Boys are used to indicate possible dangers and obstacles to
  9. navigation. There are six types of different boys or marks.
  10. This is an example of a boy.
  11. No, there are different types of boys or marks and
  12. each of them has very specific meaning.
  13. For example, the lateral marks indicate the edges of a
  14. channel. The cardinal marks indicate the direction of safe waters
  15. at a dangerous spot.
  16. Safe water marks indicate leap waters, isolated danger marks indicate
  17. a hazard to shipping.
  18. And lastly special marks indicate an area used for special
  19. purposes. All marks in the I.
  20. A. L.
  21. A. System are distinguished by their shape, color, top mark
  22. and light.
  23. Now let's talk about the first one, natural marks.
  24. These marks indicate the port hand side and the starboard
  25. hand side of a channel or hardboard.
  26. There are two regional system with different standards for painting
  27. the lateral marks.
  28. The region A.
  29. Uses the red color for the left hand sign at
  30. the region B uses the green color for the port
  31. side mark.
  32. This is an example of a voyage guide.
  33. Next cardinal marks, they indicate the position of a hazard
  34. and direction of safe water.
  35. They are either pillar or spar shape and are always
  36. black and yellow in color.
  37. These boys have two black cones on their top marks.
  38. They flash a white light at night.
  39. Next is safe water marks.
  40. They are boys that indicate deep water and safe water.
  41. These boys are red with white vertical stripes in color.
  42. Next is the isolated danger marks.
  43. They are boys that indicate the position of an isolated
  44. danger. They are usually read with horizontal black stripes and
  45. color. Lastly special marks, these marks are boys that indicate
  46. an area used for special purposes, such as a water
  47. skiing area or the position of pipelines are super rich
  48. pipes. These special marks are yellow in color, and they
  49. have a yellow X top marks.
  50. That that would be all.
  51. Thank you.