Cult of Sea

Maritime Knowledge base

  • Home
  • Knowledge base
    • Bridge Equipment
    • Cargo Work
    • Deck
    • General
    • Gmdss
    • Maritime Law
    • Marpol
    • MLC 2006
    • Meteorology
    • Navigation
    • Safety
    • Security
    • Ship Construction
    • Ship Handling
    • Ship Stability
    • Shippie’s Escape
    • Surveys
    • Tankers
  • Colreg’s (ROR)
    • Index (Colreg’s)
    • Part A- General
      • Rule 1 – Application
      • Rule 2 – Responsibility
      • Rule 3 – General Definitions
    • Part B- Steering and Sailing
      • Section 1 (Rule 4 -10)
        • Rule 4 – Application
        • Rule 5 – Lookout
        • Rule 6 – Safe Speed
        • Rule 7 – Risk of collision
        • Rule 8 – Action to avoid collision
        • Rule 9 – Narrow Channels
        • Rule 10 – Traffic separation schemes
      • Section 2 (Rule 11 – 18)
        • Rule 11 – Application
        • Rule 12 – Sailing vessels
        • Rule13 – Overtaking
        • Rule 14 – Head on situation
        • Rule 15 – Crossing situation
        • Rule 16 – Action by give-way vessel
        • Rule 17 – Action by stand-on vessel
        • Rule 18 – Responsibilities between vessels
      • Section 3 (Rule 19)
        • Rule 19 – Conduct of vessels in restricted visibility
    • Part C- Lights and Shapes
      • Rule 20 – Application
      • Rule 21- Definitions
      • Rule 22 – Visibility of lights
      • Rule 23 – Power-driven vessels underway
      • Rule 24 – Towing and pushing
      • Rule 25 – Sailing vessels underway and vessels under oars
      • Rule 26 – Fishing vessels
      • Rule 27 – Vessels N.U.C or R.A.M
      • Rule 28 – Vessels constrained by their draught
      • Rule 29 – Pilot vessels
      • Rule 30 – Anchored vessels and vessels aground
      • Rule 31 – Seaplanes
    • Part D- Sound and Light Signals
      • Rule 32 – Definitions
      • Rule 33 – Equipment for sound signals
      • Rule 34 – Manoeuvring and warning signals
      • Rule 35 – Sound signals in restricted visibility
      • Rule 36 : Signals to attract attention
      • Rule 37 – Distress signals
    • Part E- Exemptions (Rule 38)
      • Rule 38 – Exemptions
    • Part F – Verification of compliance with the provisions of the Convention
      • Rule 39 – Definitions
      • Rule 40 – Application
      • Rule 41 – Verification of compliance
    • Annexes
      • Annex 1 – Positioning and technical details of lights and shapes
      • ANNEX II – Additional Signals for Fishing Vessels Fishing in Close Proximity
      • ANNEX III – Technical Details of Sound Signal Appliances
      • ANNEX IV – Distress Signals
  • Glossary
  • Contact

Echo Sounder – Principle, Working & Errors

Echo Sounder

One of the dangers faced by a ship is that of run­ning aground. Usually, a vessel determines its position by means of GPS, Radar, Decca, Loran or visual bearings. The depth of water is checked from the echo sounder just as a matter of routine to see that the depth obtained matches with that show on the chart. However when the position is not accurately known while approaching the port, or crossing over a bar, or near the mouth of a river, or in a poorly surveyed area, the under-keel clearance and depth of water needs to be known. The echo sounder comes in handy in such situation.An Echo … [Read more...]

By Cult of Sea Filed Under: Bridge Equipment Tagged With: Bridge Equipment, echo, echo sounder, electrostriction, Magnetostrcition, sea bed, sonar, transducer

mariner-gps
Simple Colregs COS Ad

Join Our List

Subscribe to our mailing list and get interesting stuff and updates to your email inbox.

Powered with ♥ by Cult of Sea

instagram-button

What others are reading

Part C Lights and Shapes

Rule 25 – Sailing vessels underway and vessels under oars

Ship's magnetic compass

Ship’s Magnetic Compass – Dry and Wet Compass with their care, maintenance and bubble removal

Pumps

Pump Types / Characteristics – Tanker Basics

Part D - Sound and Light Signals

Rule 35 – Sound signals in restricted visibility

Ships overtaking

Rule13 – Overtaking

Deck Cargoes

Deck Cargoes

Convention on the International Regulations for Preventing Collisions at Sea, 1972 (COLREGs)

Documentary-Credit-System-Shipping-Icons8

Documentary Credit System in Shipping – Basics Explained with Flowchart

Fire Wires or Emergency Towing-off Pennants

Fire Wires or Emergency Towing-off Pennants (ETOP’s), MEG 4, ISGOTT Edn 6th Recommendations

Gas Tanker - Hazards & Definitions

Gas Tanker Basics – Definitions and Hazards

Portable Fire Extinguishers

Visual Storm (Cyclone) Warning Signals for Indian Sea Ports

GPS (Global Positioning System)

Stamps

Ship’s you need to sail on before you die!

Condition Assessment Programme CAP

Condition Assessment Programme (CAP)


About Us | Terms | Contact Us | Sitemap | Marine Glossary (BETA)

Cult of Sea®™ · Made with ❤ by a small band of sailors