Navigation Rules Flashcards
Rule 1
Application
-All vessels
Rule 2
Responsibility
Rule 3
General Definitions
Rule 4
Application
- Any condition of visibility
- Rules 4-10
Rule 5
Lookout
Rule 6
Safe Speed
Rule 7
Risk of Collision
Rule 8
Action to avoid collision
Rule 9
Narrow channels
Rule 10
Traffic separation schemes
Rule 11
Application
- Vessels in sight of one another
- Rules 11-18
Rule 12
Sailing vessels
Rule 13
Overtaking
Rule 14
Head-on situation
Rule 15
Crossing situation
Rule 16
Action by give-way vessel
Rule 17
Action by stand-on vessel
Rule 18
Responsibilities between vessels
Rule 19
Conduct of vessels in restricted visibility
Rule 20
Application
- All weathers
- Rules 20-31
- Lights sunset to sunrise & during restricted visibility
Rule 21
Definitions
Rule 22
Visibility of lights
Rule 23
Power-driven vessels underway
lights and shapes
Rule 24
Towing and pushing
lights and shapes
Rule 25
Sailing vessels U/W and vessels under oars
lights and shapes
Rule 26
Fishing vessels
lights and shapes
Rule 27
Vessels not under command or restricted in ability to maneuver
(lights and shapes)
Rule 28
Vessels constrained by draft
lights and shapes
Rule 29
Pilot vessels
lights and shapes
Rule 30
Anchored vessels and vessels aground
lights and shapes
Rule 31
Seaplanes
Rule 32
Definitions
Rule 33
Equipment for sound signals
Rule 34
Maneuvering and warning signals
Rule 35
Sound signals in restricted visibility
Rule 36
Signals to attract attention
Rule 37
Distress signals
Rule 38
Exceptions
Elements of safe speed
- Maneuverability
- Traffic density
- Visibility
- Background lighting
- Environment
- Draft
Safe speed rule
Every vessel shall at all times proceed at a safe speed so that she can take proper and effective action to avoid collision and be stopped within a distance appropriate to the prevailing circumstances and conditions
Lookout rule
Every vessel shall at all times maintain a proper lookout by sight and hearing as well as by all available means appropriate in the prevailing circumstances and conditions so as to make a full appraisal of the situation and of the risk of collision
Overtaking rule
- Any vessel overtaking any other shall keep out of the way of the vessel being overtaken
- Deemed overtaking when coming up with another vessel from a direction more than 22.5° abaft the beam
Head-on situation rule
Unless otherwise agreed, when two power-driven vessels are meeting on reciprocal or nearly reciprocal courses so as to involve risk of collision, each shall alter her course to starboard so that each shall pass on the port side of the other
Crossing situation rule
When two power-driven vessels are crossing so as to involve risk of collision, the vessel which has the other on her starboard side shall keep out of the way and shall avoid crossing ahead of the other vessel
Action by give-way vessel
Every vessel which is directed to keep out of the way of another vessel shall, take early and substantial action to keep well clear
Action to avoid collision rule
- Shall be positive, made in ample time and with due regard to good seamanship
- Shall be large enough to be readily apparent to the other vessel
- Shall result in a safe passing distance
- If necessary shall slow or stop
Risk of collision rule
Every vessel shall use all available means appropriate to the prevailing circumstances and conditions to determine if risk of collision exists. If there is any doubt such risk shall be deemed to exist
Action by give-way vessel rule
Every vessel which is directed to keep out of the way of another vessel shall, so far as possible, take early and substantial action to keep well clear
Action by stand-on vessel rule
- Shall keep course and speed
- May take action to avoid collision by her maneuver alone, as soon as it becomes apparent that the give-way vessel is not taking appropriate action
- Shall take action to avoid collision when so close that collision cannot be avoided by the action of the give-way vessel alone
Vessel hierarchy
- Not under command
- Restricted in ability to maneuver
- Constrained by draft
- Fishing
- Sailing
- Power-driven
- Seaplane
Conduct of vessels in restricted visibility rule
- Every vessel shall proceed at a safe speed adapted to the prevailing circumstances and conditions
- Shall have engines ready for immediate maneuver
Masthead light
- White
- 225°
- Forward
- 22.5° abaft the beam
Sidelights
- Green starboard
- Red port
- 112.5°
- 22.5° abaft the beam
Sternlight
- White
- Aft
- 135°
- 67.5° from right aft on each side of the vessel