Study Notes




If its the morning of the exam and you haven't studied and don't have time to read anything else, then read these notes...


Rule 9 - Narrow Channels
  • Stay on starboard side
  • Sailing vessels and power-driven vessels < 20m are not to impede any vessel confined to the channel
  • Fishing vessels are not to impede any vessel confined to a channel
  • Don't cross a channel if it will impede the progress of a vessel confined to the channel
  • If an overtaken vesseel must take action to be safely passed, the vessels must use the signals in Rule 34(c)
  • Don't anchor in a narrow channel

Rule 13 - Overtaking
  • Vessel is overtaking when approaching another vessel in the arc of its sternlight (> 22.5 degrees abaft of beam)
  • If in doubt, your overtaking

Rule 14 - Head-on
  • Alter course to starboard
  • If any doubt as to whether head-on or crossing, its head-on

Rule 15 - Crossing
  • One on starboard is stand-on = maintains course and speed

Rule 18 - Responsibilities Between Vessels
  • Vessel not under command (NUC)
  • Vessel restricted in ability to maneuver (RAM)
  • Vessel constrained by draft (CBD)
  • Vessel engaged in fishing (FISH)
  • Sailing vessel (SAIL)
  • Power-driven vessel (POWER)
  • Seaplane (PLANE)
  • SUMMARY:  NUC -> RAM -> CBD -> FISH -> SAIL -> POWER -> PLANE
Rule 34 - Maneuvering and Warning Signals     [ * is a short 1 second blast / --- is a long 4-6 second blast ]
  • International Rules - action is definitive; no delay for agreement required
    • Open water w/in sight
      • * = altering to starboard
      • * * = altering to port
      • * * * = astern propulsion
    • Narrow channel
      • --- --- * = intend to overtake on your starboard
      • --- --- * * = intend to overtake on your port
      • --- * --- * = I agree to be overtaken
    • Anywhere
      • * * * * * = I don't understand
      • --- = approaching bend
  • Inland Rules - announcement of a proposed action; proposed maneuver should wait till agreement
    • Meeting or crossing win 1/2 mile and insight
      • * = I will leave you on my port
      • * * = I will leave you on my starboard
      • * * * = I am operating astern propulsion
    • In sight, narrow channel
      • * = I intend to overtake on your starboard
      • * * = I intend to overtake on your port
      • *  or  * * = I agree to be overtaken; answer
    • Anywhere
      • * * * * * = I don't understand
      • --- = Approaching bend
      • --- = Leaving dock

Rule 35 - Sound Signals in Restricted Visibility
  • Power making way = --- @ 2 min
  • Power stopped = --- --- @ 2min
  • All these are --- * * @ 2min
    • Not under command
    • Restricted
    • Constrained by draft
    • Sailing
    • Fishing
    • Towing or pushing
    • Fishing, at anchor
    • Restriced, at anchor
  • Being towed, if manned --- * * * @ 2min
  • At anchor < 100m = rapid 5-sec bell @ 1min
  • At anchor >= 100m = 5 sec fore, then 5 sec gong aft

Annex IV - Distress Signals
  • gun fired once per min
  • continuous sounding of fog horn
  • red star rockets or shells
  • Morse code SOS ( * * * --- --- --- * * * ) 
  • "Mayday" on radio
  • International flags "N" + "C"
  • Square flag and a ball
  • Flames on deck, such as burning oil in a barrel
  • Rocket parachute flare
  • Red hand flare
  • Orange-colored smoke
  • Slow, repeated raising and lowering of arms at sides
  • Radiotelegraph alarm signal
  • Radiotelephone alarm signal
  • EPIRB
  • Dye marker
  • Orange canvas with black square and circle
  • High intensity flashing white light (strobe) 50-70/min

Lighting Memory Aids
  • All around, vertically arranged
    • R / R = Not Under Command = "Red over red; the captain is dead"
    • R / R / R = Constrained by Draft (CBD) = "Red - red - red - everywhere red - constrained by red"
    • R / W / R = Restricted in Ability to Maneuver (RAM) = "Red - white - red; RAM ahead"
    • R / G = Sailing Underway = "Red over green; a sailing machine"
    • R / W = Fishing (lines or nets) = "Red over white; fishing tonight"
    • G / W = Fishing (trawling) = "Green over white; trawling tonight."
    • W / R = Pilot = "White ovver red; pilot ahead"
    • G / G / G = Mine clearing = "Green - green - green; danger extreme"
  • Not all around
    • W / W = Towing Behind = "White over white; there's a tow in sight"
    • W / W / W = Towing > 200m = "White - white - white; a long tow in sight."
    • Y / W = Towing Astern = "Yellow over white; the tow's behind."
    • Y / Y = Towing Alongside or Ahead = "Yellow over white; the tow's ahead or alongside"
  • Vessels showing yellow lights
    • Tug towing
    • Tow pushed or alongside
    • Submarine
    • Air-cushion vessel
    • Purse seiner in close proximity
    • Public service (yellow alternates with red)
 
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