Nav Rules Flashcards
COLREGS
International Regulations for Prevention of Collisions at Sea
Called 72colregs Adopted 1972. Developed by IMO.
IMO
International Maritime Organization
International rules, Rules of Execution means . . .
I am doing xxx . . .
Inland rules, Rules of Intent means . . .
I Intend to do xxx . . . Advise and consent
How do we determine if Inland or International rules apply
Demarcation lines delineate whether inland or international rules comply
Watch words and phrases
All.
Never
Any.
Always
May.
According to the rule
Deemed to exist
Shall
Lights for a submarine
MAY display intermittent flashing yellow beacon
1 sec for 3 secs, 3 secs off
Rule one
International
A rules apply to all vessels
B these rules do not interfere with special rules
C these rules do not interfere with additional station, signal lights or whistle signals especially for fishing fleets or war vessels in a convoy
D separation scheme may be adopted
E special construction vessel must comply as close as possible, like jet skis
Rule one.
Inland
A rules apply to inland waters and great lakes and US boats on Canadian waters of grt lakes as long as don’t conflict with Canadian rules
B special rules are inland rules
C addtnl lights may be used as long as won’t be confused with international rules
D traffic separation rules may be adopted
E special construction will comply with rules as closely as possible like jet skis secretary of ?navy shall make determinations
Rule two
A Rule of good seamanship
B General Prudential Rule
A. Follow the rules or everyone can be held responsible B. unless there is immediate danger
consequences of neglect to comply with rules or of the neglect of any precaution which may be required by the ordinary practice of seamen
due regard shall be had to all dangers of navigation and collisions and to any special circumstances, including the limitations of the vessels involved, which may make a departure from these rules necessary to avoid immediate danger
What is chart symbol for a light
Solid dot with grey exclamation mark
What is chart symbol for buoy
Open dot with open diamond
What is chart symbol for lighted Buoy
Grey o with grey halo and open diamond
NUC means
Not under command due to exceptional circumstances Like lost one or more engines, lost rudder . . .
RAM
Restricted in ability to maneuver because of its occupation or nature of its work
Laying cable, dredging, surveying, transferring cargo or persons while underway, mineclering, servicing navigation marks, launching or recovering aircraft, engaged in mineclearance operations
Towing only if severly restricted and declared
Underway
A vessel not anchored, attached to ground, or aground
Trawling and trolling
Trawling involves nets, trawls or fishing apparatus which restrict maneuverability
Have to be ENGAGED in fishing
Trolling is recreational fishing and not restricted
CBD
International only
Constrained by draft - power driven vessel because of her draft in relation to depth and width of navigable waters cannot deviate from her course
Inland all constrained so no one gets preferential treatment
Bowline
Secure knot even under a load
Easy to undo if NOT under load
Tie two lines together, secure something under load
Sheet bend
To join two ropes of unequal size. Thicker is loop - the bight
Not a binding knot
Cannot be tied under load
Needs two loose ends
Square knot
Also reef knot
Intended but Not a binding knot so Never use for critical loads
Do use for Sail covers, reeling lines,
Clove hitch
It slips and can bind
Hang fenders
Mooring to post if not great strain
Figure 8
Line stopper
Chart = sign
Joins exactly to another chart