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Knowledge Of Sea

  • Home
  • Video
  • Chartering Terms
  • Rule of the Road (COLREG)
    • Nautical Flags
    • Rule of the Roads – CARDS
  • Tanker Definitions
  • Downloads
  • ORAL NOTES
    • ORAL NOTES- 2ND OFFICER
    • ORAL NOTES- CHIEF MATE
  • About Me

Navigation

To keep clear of TRS
  • Navigation

To keep clear of TRS

admin12 mins0
In mid September a loaded container ship is in position 26˚ 30’ N 121˚ 20’ E bound…
continue reading..October 4, 2025October 4, 2025
Weather Pattern in Oceans for Navigation
  • Navigation

Weather Pattern in Oceans for Navigation

admin22 mins0
Wind pattern The wind direction and speed is determined by the position of the Highs and Lows.…
continue reading..October 3, 2025October 3, 2025
Navigation Pressure Pattern
  • Navigation

Navigation Pressure Pattern

admin3 mins0
Pressure patterns: Common for July and January Permanent High in North and South Atlantic (35˚N/S)Permanent High in…
continue reading..October 3, 2025October 3, 2025
Iceberg General Patterns
  • Navigation

Iceberg General Patterns

admin4 mins0
North Atlantic: July: Northern Summer January: Northern Winter South Atlantic / S. Indian Ocean / South Pacific…
continue reading..October 3, 2025October 3, 2025
Chart 5500 English Channel
  • Navigation

Chart 5500 English Channel

admin3 mins0
Specific regulation RADIO REPORTING SYSTEM: MARITIME RADIO SERVICE: PILOTAGE SERVICES:
continue reading..October 3, 2025October 3, 2025
  • Navigation

Traffic Separation Scheme

admin3 mins0
DIFFERENTIATE BETWEEN ADOPTED AND NON-ADOPTED ROUTEING SCHEMES. ADOPTED SCHEMES: NON-ADOPTED SCHEMES: FIVE PRECISE OBJECTIVES OF THE IMO…
continue reading..October 3, 2025October 3, 2025
Passage through
  • Navigation

Passage through

admin10 mins0
Passage through Magellan Straits (Points for consideration) • An alternative route between E and W coast of…
continue reading..October 3, 2025October 3, 2025
Wheel Over Position
  • Navigation

Wheel Over Position

admin2 mins0
WOP is the point on the initial course at which the wheel is put over to initiate…
continue reading..March 19, 2025March 19, 2025
Rudder Cycling, Head reach and Track Reach
  • Navigation

Rudder Cycling, Head reach and Track Reach

admin8 mins0
Rudder Cycling works on the principle of diverting the fore and aft thrust sideways but not really…
continue reading..August 25, 2024August 25, 2024
Precautions polar water
  • Navigation

Precautions polar water

admin15 mins0
In general, during ice ship navigation, an ice pilot and ice breakers are provided to help commercial…
continue reading..August 25, 2024August 25, 2024
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Blog is primarily for candidates appearing for certificate of competency exams but such is the detail that while being equally suitable for the beginner, it is also reference work for experienced seaman, and the layout and style of blog make it suitable for shipboard training where practical experience can be allied to the theoretical approach.

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