Parallel Indexing
3 mins
Parallel indexing is an effective way of monitoring a vessels progress along a preselected track using a…
3 mins
Azimuth Mirror
3 mins
A compass is equipment which is used to find direction while at sea. A compass tells the…
Doppler Log
11 mins
The speed log is a device used to measure the speed and also the number of nautical…
Passage Planning For Pilotage Waters
13 mins
90% of all the shipping casualties occur in coastal and port areas. The coastal passages leading to…
ECDIS Route Check
5 mins
The created route must be checked for potential dangers in case any have been overlooked during route…
Radar Best Practice -ARPA
9 mins
When using the ARPA the following points to be considered: For collision avoidance purposes an ARPA should…
Sextant
7 mins
The sextant is an instrument used to measure angles. Its arc is one sixth of a circle.…
Under Keel Clearance
7 mins
A change in draught may arise during a voyage due to factors such as cargo and ballast…
MANDATORY ECDIS ALARMS AND ALARM SETTING
20 mins
Below is the list of mandatory alarms / indication as per MSC Resolution 232(82). Alarm: An alarm…
ENC CHART CORRECTION
17 mins
ENCs are updated by weekly ‘Notices to Mariners’ issued by Hydrographic Offices / Regional ENC co-ordination centers…