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99 Cards in this Set
- Front
- Back
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what is a vessel
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includes every description of water craft used or capable of being used as a means on transportation on water such as: power-driven vessels, sailboats, seaplanes, non-displacement craft
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what is a vessel engaged in fishing
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any vessel fishing with nets, lines, trawls or other fishing apparatus which restrict maneuverability (although it is not RAM).
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what is a vessel not under command
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a vessel which through some exceptional circumstances is unable to maneuver to comply with the Rules.
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what is vessel restricted in ability to maneuver
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a vessel which from the nature of her work is unable to keep out of the way of another vessel.
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vessel constrained by draft (only int'l)
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a power driven vessel which, because of her draft in relation to the available depth is severely restricted in her ability to deviate from her present course.
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safe speed is a speed at which...
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a vessel can take proper and effective action to avoid collision and be stopped within a distance appropriate to the prevailing circumstances and conditions
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power-driven vessel making way
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1 prolong blast
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power-driven vessel not making way
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2 prolong blasts
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vessel not under command, restricted in ability to maneuver, sailing vesseles, vessels fishing, vessels constrained by draft
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1 prolong blast, 2 short
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vessels being towed
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1 prolong blast, 3 short
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In a meeting/crossing situation, inland:
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“I intend to leave you on my PORT or STBD side.”
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In a meeting/crossing situation, international:
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“I am altering my course to PORT or STBD.”
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In an overtaking situation (inland and int'l):
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“I intend to overtake you on your PORT or STBD side.”
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what are factors to be considered when determining safe speed
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visibility
traffic density maneuverability of vessel especially in stopping distance and turining ability presence of background lighting at night state of wind/current/sea/proximity to navigational hazards draft of vessel in relation to depth of water |
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vessels with radar should consider the radar's
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characteristics, efficiency, and limitations
range scale in use effect against sea state, weather, and othersources of interference ability to detect small vessels and objects such as ice ability to differentiate between a number of vessels in the immediate vicinity and their proximity to one another effective use in determining a more exact range of visibility |
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SOP LOW
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starboard over port, leeward over windward
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a vessel is overtaking if she is approaching another vessel from more than ____ degrees abaft the beam
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22.5 degrees
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What is the right of way order for vessels from most to least privileged
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Not under command
Restricted in ability to maneuver Constrained by draft (int'l only) Fishing (engaged in) Sailing vessel Power-driven vessel Seaplan |
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rules concerning lights shall be complied with from...
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sunset to sunrise and sunrise to sunset in restricted visibility or when deemed necessary
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flashing light flashes at regular intervals __ per min
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120 per min
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special flashing light flashes at regular intervals ___ to ___ per min
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50 to 70 per min
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W
G W ' or W W G R |
power driven vessel >50m
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W
G or W G R |
power driven vessel <50m
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W
W G or Y W |
vessel engaged in towing <200m
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W
W W G |
vessel engaged in towing
>200m |
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R
G G |
sailing vessel underway
(red over green, sailing machine) |
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♦
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towing >200m
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▼
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sailing vessel under power
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▼
▲ R W |
fishing vessel
(red over white, fishing at night) |
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▼
▲ G W |
trawler
(green over white, trawling at night) |
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●
♦ ● R W R |
restricted ability to maneuver
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●
● ● R R |
aground
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● R R |
not under command
(red over red, captain's dead) |
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W |
anchor
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●---I---● G G G |
mine clearance
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█
R R R |
constrained by draft (only int'l)
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W
R |
piloting vessel
(white over red, pilot ahead) |
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▲
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gear extends past 150m
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●
● ♦ ♦ ● ● ♦ |
dredging
engaged side (ball-ball) and unengaged side (diamond-diamond) |
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rigid code alpha flag
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diving
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how long is a short blast?
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1 s
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how long is a prolonged blast
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4-6 s`
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meeting inland, 1 short blast means:
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"i intend to leave you on my port side"
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meeting inland, 2 short blasts mean:
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"i intend to leave you on my starboard side"
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inland, 3 short blasts mean:
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"i am operating astern propulsion:
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if in agreement, the vessel answering will sound:
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the same signal
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in not in agreement, the vessel answering will sound:
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the danger signal: 5 short blasts
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overtaking inland, 1 short blast means:
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I intend to overtake you on your starboard side
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overtaking inland, 2 short blasts mean:
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I intend to overtake you on your port side
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a vessel nearing a bend or an area of a channel shall sound:
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1 prolonged blast
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A power driven vessel leaving a dock or berth shall sound:
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one prolonged blast
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in restricted vis., a power driven vessel underway will sound:
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1 prolonged blast nmt 2 miin interval
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in restricted vis., power driven vessel underway but not making way will sound
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2 prolonged blasts with a 2 s gap nmt 2 min interval
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in restricted vis., vessels: not under command, ram, sailing, fishing, towing or pushing sound:
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1 prolonged blast followed by 2 short blasts nmt 2 min intervals
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in restricted vis., the last vessel in a tow will sound:
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1 prolonged blast followed by 3 short blasts
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in restricted vis., a vessel at anchor will sound:
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ring the bell rapidly for 5 s at interval nmt 1 min
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in restricted vis., a vessel >100m will sound:
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ring the bell rapidly for 5 s and then a gong sound for about 5 s
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what is dead reckoning?
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an estimated position based on the ordered course and speed that predicts where your ship will be without the effects of wind and current
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what is an estimated position?
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an estimated position based on course and speed AND the effects of wind and current that predicts where your ship will be
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what are the 6 rules of dead reckoning
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1. every hour on the hour
2. every course change 3. every speed change 4. every single LOP 5. every fix or running fix 6. new course line shall be drawn from each fix with 2 DRs |
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what are causes of gyro error
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friction
ship's motion electronic malfunctions power fluctuations |
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define set and drift
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set is the direction of the actual/estimated current
drift is the velocity of the actual/estimated current |
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name nav instruments that can be used to obtain an LOP
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telescopic alidate
bearing circle azimuth circle radar |
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T/F : variation can be found referencing the compass rose
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T
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T/F: all US safe water marks show a white light with a Morse Alpha with a period of normally 8 sec
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T
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what are the symbols for an electronic fix, a visual fix, a DR, and an estimated position
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a triangle, a circle, a half circle, and a square
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in a IALAA scheme, green buoys should be:
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on the right when returning from sea
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define compass error
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the sum of deviation and variation
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what does Truly Valiant Marines Don't Cry At Weddings mean
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True bearing, Variation, Magnetic Head, Deviation, Add West
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what is the 3 min rule?
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S*100= D in yards
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what is the 6 min rule?
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S/10= D in nautical miles
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when do you sound 3 short blasts?
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when backing up (astern propulstion)
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what do you sound for a port to port signal (inland)
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1 short blast
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what do you sound for a port to port passage in internation waters
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1 short blast
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all meridians are:
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great circles
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T/F: all lines of latitude are small circles
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F
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what is the arc of visibility for a sternlight
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135 degrees
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what is the arc of visibility for a sidelight?
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112.5 degrees
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what is the arc of visibility for a masthead light?
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225 degrees
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what is the arc of visibility for a all around white light
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360 degrees
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what type of vessel is not mentioned in the inland navigation rules?
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a vessel conducting unrep
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define safe speed and 6 factors that can be used to determine it
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speed deemed necessary to operate ship and avoid collision.
1. weather 2. background lighting 3. visibility 4. maneuverability 5. traffic density 6. depth in relation to draft |
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what is the day shape for vessel constrained by draft
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cylinder
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what is the day shape for vessel not under command
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ball over ball
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what is the day shape for sailboat under power
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downward apex
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what is the day shape for restricting in ability to maneuver
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ball over diamond over ball
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what is the day shape for vessel aground
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ball over ball over ball
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what is the day shape for vessel at anchor
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1 ball
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what is the light configuration for vessel constrained by draft
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R
R R |
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what is the light configuration for vessel not under command
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R
R |
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what is the light configuration for sailboat under power
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R
W |
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what is the light configuration for vessel ram
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R
W R |
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what is the light configuration for vessel aground
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R
R and all deck lights |
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what is the light configuration for vessel at anchor
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<50m: 1 all around white light
>50m: 2 all around white lights (forward and aft) |
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if a vessel does not understand the course or intention of an approaching vessel it should sound
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at least 5 short blasts
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7 international distress signals
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red shell stars
foghorn continuous sounding flames on vessel gun fired at intervals of 1min orange background black ball and square sos mayday by radio dye marker wave arms |
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what is the sound signal and duration for a pilot vessel in restricted visibility?
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4 short blasts (optional)
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In international waters what does 1 short blast mean?
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I am altering course to stbd
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In inland waters what does 1 short blast mean?
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I intend to leave you on my port side
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