Nav Rules Flashcards
What is rule 1
Application
“Rules apply to all vessels”
Intl: high seas
Inland: US inland waters, Great Lake, western rivers
What is rule 2?
Responsibility
“Nothing exonerates any vessel, owner, master, or crew from the consequences to comply with the rules”
What is rule 3?
General definitions
What is rule 4?
Application
Part B, rules 4 to 10
Conduct of vessels in any condition of visibility
What is rule 5?
Lookout
Every vessel shall at all times maintain a proper lookout by sight and hearing and by all available means
What is rule 6?
Safe speed
Shall proceed at a safe speed so that she can take proper and effective action to avoid collision
Factors; state of visibility, traffic density, maneuverability, background lighting, wx, draft
Radar; characteristics efficiency, scale, wx interference, small object detection, vessel number and movement, assessment of visibility
What is rule 7?
Risk of collision
Shall use all available means appropriate to the prevailing circumstances and conditions to determine if ROC exists. If doubt, deemed to exist.
Assumptions shall not be made on the basis of scanty information, especially scanty radar information
What is rule 8?
Action to avoid collision
Any action taken to avoid collision shall be positive, made in ample time and with due regard to the observance of good seamanship.
Any alterations of course and speed should be large enough to be readily apparent to another vessel.
If necessary to avoid collision or allow more time to assess the situation, a vessel shall slacken her speed or take all way off.
What is rule 9?
Narrow channels
Shall not cross if such crossing impedes the passage of a vessel.
Inland: down bound with the current has “right if way”. Up bound shall propose manner of passing.
What is rule 10?
Traffic separation schemes
What is rule 11?
Application
Conduct of vessels in sight of one another
Rules 11-18
What is rule 12?
Sailing vessels
What is rule 13?
Overtaking
Vessel overtaking shall keep out of the way of the vessel overtaking
Deemed to be overtaking if 22.5 degrees abaft the beam. Doubt, assume it is.
Changes shall not make it a crossing situation
What is rule 14?
Head-on
Reciprocal or nearly reciprocal so as to involve ROC each shall alter course to stbd
Doubt, assume it is
What is rule 15
Crossing
Two power driven vessels are crossing so as to involve ROC, the vessel which has the other on her stbd shall keep out of the way.
What is rule 16?
Action by give-way vessel
Directed to keep out of the way of another vessel shall so far as possible, take early and substantial action
What is rule 17?
Action by stand on vessel
Where one or two vessels is to keep out of the way, the other shall keep her course and speed
The latter may take action to avoid collision by her maneuver alone, as soon as it becomes apparent the give-way is not taking action
What is rule 18?
Responsibility between vessels
Not under command Restricted in ability to maneuver Constrained by draft Fishing Sailing Power driven Sea plane WIG
What is rule 19?
Conduct of vessels in restricted visibility
Not in sight when navigating in or near and area of restricted visibility
Shall proceed at a safe speed. A power driven vessel shall have her engines ready for immediate maneuver
Detect by radar alone, determine if a close quarters situation is developing or ROC exists. Shall take avoiding action in ample time.
Shall avoid;
1) Altering course to port for a vessel forward of the beam
2) altering toward a vessel abeam its abaft the beam
For a vessel heard forward of the beam, or cannot avoid close quarters situation, shall reduce her speed to a minimum or take all way off
What are the five annexes?
I: Position and technical details of lights and shapes
II: Additional signals for F/V
III: Technical details for sound signals
IV: Distress signals
V: Pilot Rules
Intl
One short
Agreement?
I am altering my course to starboard
None
Intl
2 short
Agreement?
I am altering my course to port
None
Intl
Three short
Agreement?
I am operating astern propulsion
None
Inland
One short (meeting/crossing)
Agreement?
I intend to leave you on my port side
Repeat
Inland
Two short (meeting/crossing)
Agreement?
I intend to leave you on my starboard
Repeat
Inland
Three short (meeting/crossing)
Agreement?
I am operating astern propulsion
None
Intl
Two long one short
Agreement?
I intend to overtake you on your starboard
One long, one short, one long, one short
Intl
Two long, two short
Agreement
I intend to overtake you on your port side
One long, one short, one long, one short
Inland
One short (overtaking)
Agreement
I intend to overtake you on your starboard
Repeat
Inland
Two short (overtaking)
Agreement?
I intend to overtake you on your port side
Repeat
Inland
All the reasons for one prolonged
Nearing a bend
Answer to bearing a bend
Leaving a dock or berth
Restricted vis underway making way
Intl/inland
One long
Restricted vis underway making way (every two minutes)
Intl/inland
Two long
Restricted vis underway not making way (every two minutes)
Intl/inland
One long, two short
Restricted vis
Not under command, RAM (&@ anchor), constrained by draft (intl), sailing, fishing (&@ anchor), towing, pushing
Every two minutes
Intl/inland
One long, three short
Restricted vis, more than one vessel towed and manned, last vessel in tow
Every two minutes
Intl/inland
Rapid bell five seconds
Restricted vis
at anchor
less than 100 meters
Every minute
Intl/inland
Rapid bell 5 seconds
Hong 5 seconds
Restricted vis
At anchor
Vessel greater than 100m
Every minute
Intl/inland
Restricted vis
At anchor may in addition sound?
Aground may in addition sound?
Anchor: one short, one long, one short
Aground: two short, one long
Intl/inland
Pilot vessel engaged in duty restricted vis signal?
Four short
