Restricted Visibility Definition
Any condition in which visibility is restricted by fog, mist, falling snow, heavy rainstorms, sandstorms, or any other similar causes
Special Marks
MACCROFTS
- Moorings, anchorages, Channel in Channel, Cables and Pipelines, Recreation areas, ODAS and outfalls, Firing ranges, TSS, Spoil grounds.
- Flashing yellow any sequence that can’t be confused with a white light in the region. ODAS 5(Fl) 20 seconds
- Any shape but directional cannot conflict
Restricted in her ability to Manouver
Lay down person & Air my toe
A vessel by the nature of her work is RAM as required by these rules and therefore unable to keep out of the way of another vessel.
- Laying, Servicing or picking up navigation mark, submarine, or cable
- Engaged in dredging, surveying or underwater ops
- Engaged in replenishment, transferring persons or cargo
-Engaged in launching recovery of aircraft
- engaged in mine clearance operations
- engaged in towing operations
NAVTEX
A - Nav warnings
B - Met warnings
D - SAR
L - Nav warnings (Add’l)
518 kHz
ALRS Volumes
Volume 1 (NP281) - Maritime Radio Stations
Volume 2 (NP282) - Radio Aids to Navigation
Volume 3 (NP283) - Maritime Safety Information
Volume 4 (NP284) - Meteorological Observation Stations
Volume 5 (NP285) - Global Maritime Distress and Safety System (GMDSS)
Volume 6 (NP286) - Pilot Services, Vessel Traffic Services and Port Operations
LSA sources
SOLAS, Large Yacht Code Chapter 13, LSA Code, MSN 1677
Distress signals - What are they and where are they found?
COLREGS!! - MSN 1781!
A gun
Rockets or shells
flames on a vessel
Rocket parachute flare
Orange smoke
Mayday
DSC 70, or MF/HF 2187.5 etc
Sat C
EPIRB
SART
Continuous sounding of fog signal
SOS
November Charlie
Square flag with a ball above or below
Arms up and down
Dye marker
