Showing posts with label Terrestrial navigation. Show all posts
Showing posts with label Terrestrial navigation. Show all posts

Easy way to enumerate "Boxing of compass"

Remembering Boxing of Compass will be very helpful during the examination as well as in day to day life for sailors.

32 points of Compass is mostly used by sailors.

4 "CARDINAL" Points: N, E, S, W

4 "INTER CARDINAL Points" 1/2 way between these are the combination of the two major points: NE, SE, SW, NW

Till here, anyone can remember easily.πŸ˜„

Further how to enumerate the compass points?
To enumerate compass points there is a technique called "Rule of 8"

The below pictures will show you how to enumerate compass points for 
1st quadrant or NE quadrant.


    

In same way you can enumerate other quadrants as well😊


"Awesome" Tips to make Passage Plan πŸ—Ί️ for 2nd mate examination

Passage planning - [For 2nd mate examination purpose only].


Example of Decent passage planning:πŸ‘‡

Note:
  • Make the plan intend to safe navigation, 
  • The information included in the chart should benefit the navigator, not to impress the examiner.

Passage plan table:

Note:
  • The table below is the minimum information that must be included in your passage plan table.
  • if time permits you can include additional information such as DTG, Min UKC, Position plotting interval (PPI), Position Plotting method (PPM), Speed to maintain, Bridge watch level, etc...


Do's and Don'ts on examination:

Do's:

  • Plot courses for given [position A to B] or [berth to berth].
  • Carefully choose the course line that suited for your draft.
  • Indicate Waypoint number and DTG.
  • Course to steer and Distance of the leg should be clearly marked. [suggested to write course Bigger than the distance 030 x 5'].
  • Draw wheel over lines wherever doing sharp alteration.
  • Draw parallel indexing lines as necessary.
  • Mark NO-GO areas. [Eg. Areas of obstruction, areas of lesser soundings, area of non-navigable areas, etc.,].
  • Mark emergency anchorage. ( make sure no foul ground, explosive dumping ground, submarine cables, or pipelines ).
  • Pass the correct side of the cardinal marks.
  • Pass the correct lanes of TSS.
  • Include the notes as required - ( make it short and readable)
  • Additionally, information included in the plan should benefit the navigator, should not hamper the chart info.

Don'ts:

  • Never include unwanted information in a chart. [Eg. Writing Waypoint lat/long in the chart, it will only hamper the chart info, it doesn't help the officer in any way].
  • Do not pass over the wrecks.
  • Wheel over lines is not necessary for small alteration.
  • Do not mark NO-GO extensively. [Eg. Vessel is on south coast of India bound to Singapore, in this do not mark whole Srilanka as no go area 😠].

Popular topics