Passage Plan Flashcards
A voyage plan shall identify a route which:
- Takes into account any relevant ships’ routeing systems
- Ensures sufficient sea room for the safe passage of the ship throughout the voyage
- Anticipates all known navigational hazards and adverse weather conditions
- Takes into account the marine environmental protection measures that apply, and avoids, as far as possible, actions and activities which could cause damage to the environment
Appraisal
Collecting and assessing of all the relevant information required for the intended passage.
Planning
Developing and approving a passage plan based on the outcome of the appraisal of all the relevant information.
Execution
Briefing the bridge team on the passage plan. Navigating the ship in accordance with the passage plan.
Monitoring
Checking progress of the ship against the passage plan.
Under Keel Clearance
- Squat of the ship
- Heeling
- Reliability of the charted depth data (Zone Data: A1 e.c.t.)
- Predicted tide levels
- Areas of mobile bottom
- Any change to the water density
- Accuracy of actual draft
- Reliability of echo sounder
- The manoeuvrability of our vessel
- Ability to fix our position
- Ability to use a PI
- Reduced depths over pipes lines and other obstructions
How often do you fix your position?
The frequency of fixing your position is dependent on your proximity to danger and the speed you are travelling at. Therefore you should fix your position often enough you cannot come to harm between fixes. Example 10kts 1mile from the coast every 6mins
The calculation for safety depth
Safety Depth = draught + under keel clearance (UKC) (including squat and a safety margin) - height of tide (HoT)
Safety Contour
A specific depth contour set by ECDIS. It remarks the boundary between “safe water” and shallow water with an extra wide isoline and is used to give an alarm if the ship, within a time specified by the mariner, is going to cross the safety contour.
Safety depth
Value set by the mariner that is used by ECDIS to portray soundings as black if they are equal to or shallower than the value and grey is they are deeper.
Where would you find the list of publications you would use for passage planning?
Solas Chapter 19 Regulation 19
Where do you find the defined publications you need to have onboard?
The Mariners Handbook - NP100
Masters Guide to the UK Flag
UK Publications Required to be onboard
Official Logbook
COSWOP
MSN, MGN, MIN
Charts
Mariners Handbook
Notice to Mariners
Notice to Mariners - Annual Summary
List of Radio Signals
Nautical Almanac
List of Lights
Sailing Directions
Tide Tables
Tidal Stream Atlases
Navigational Tables
Operating and maintenance instructions for navigational aids carried by a ship
MCA Ships Captains Medical Guide
IAMSAR Vol. III
Declaration of Maritime Labour Compliance Parts 1 & 2
International Code of Signals (<3000Gt)