Doppler Log
The speed log is a device used to measure the speed and also the number of nautical miles the vessel…
Passage Planning For Pilotage Waters
90% of all the shipping casualties occur in coastal and port areas. The coastal passages leading to ports are generally…
ECDIS Route Check
The created route must be checked for potential dangers in case any have been overlooked during route creation. The system…
Radar Best Practice -ARPA
When using the ARPA the following points to be considered: For collision avoidance purposes an ARPA should be sea stabilized…
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…