Steering Gear Testing
Within 12 hours before departure, the ships steering gear is checked and tested by the ship’s crew. The test procedures…
Sextant
The sextant is an instrument used to measure angles. Its arc is one sixth of a circle. Hence it is…
Under Keel Clearance
A change in draught may arise during a voyage due to factors such as cargo and ballast changes as well…
MANDATORY ECDIS ALARMS AND ALARM SETTING
Below is the list of mandatory alarms / indication as per MSC Resolution 232(82). Alarm: An alarm or alarm system…
ENC CHART CORRECTION
ENCs are updated by weekly ‘Notices to Mariners’ issued by Hydrographic Offices / Regional ENC co-ordination centers ( RENC) and…
ECDIS – Detection Area
A valuable function of ECDIS is to continuously display position fixes and at the same time, monitor a detection area…
Storm Navigation
Finding the Quadrant – Northern Hemisphere Northern Hemisphere If the wind veers she is in the right hand semicircle (Dangerous…
Steering Gear
Purpose of steering gear The steering gear provides a movement of the rudder in response to a signal from the…
Fixed CO2 Fire Extinguishing System
How CO2 extinguishes fire At atmospheric pressure carbon dioxide is a colouless, odourless and non-conductive gas that can quickly and…
Anchoring Methods
Three types of methodsVessel generally use any one of the following methods: “Dropping” or “letting go” anchor from the hawse…