ECDIS Flashcards
Backup arrangements for ECDIS?
1 - independent ecdis with pre loaded ENC’s
2 - folio of paper charts fully updated for the voyage
SOLAS carriage requirements for ECIDS?
1 - Must be type approved by administration
2 - Must be compatible with official ENCs
3 - Must be maintained to IMO performance standards
4 - Must have independent backup arrangment
Mandatory alarms of ECDIS?
1 - Crossing a safety contour 2 - Deviation from route 3 - Position fixing failure 4 - Critical point approach 5 - Change in datum
Mandatory ECDIS inputs?
1 - Gyro
2 - GPS
3 - Log
Four ECDIS safety settings?
1 - Shallow contour = Ships draught
2 - Safety contour = Ships draught + UKC + Squat - HOT
3 - Safety depth = Same as safety contour
4 - Deep contour = As required by the company
Detect dangers ahead with ECDIS?
1 - sector area = length and width
2 - vector area = radius and width
ECDIS doesn’t have the ENC coverage you require?
RCDS risk assessment MGN285
3 ECDIS display functions?
1 - base = no information can be deleted
2 - standard = minimum safe for navigation
3 - custom = user preference
How to update charts on ECDIS?
1 - update cd by AVCS then transfer via USB
2 - email then transfer via USB
Can RCDS mode be used as sole mans for navigation?
No - must be supplemented with updated paper chats
Difference between alarm and indication on ECDIS?
Alarm = audio and visual
Indication = visual
How will AIO be displayed?
Red polygon can be interrogated
What is AIO?
- T’s and P’s corrections
- Released weekly
- Information not included in ENC
What type of certificate need to operate ECDIS ?
General (NAEST) and type specific
Limitations of ECDIS
ECDIS may be over relied upon as a navigational aid.
Information overload.
Alarm fatigue.
Incorrect setting input.
Data is only as reliable as the integrated systems.
Requires power.
