LC ROR Revision Flashcards
LC ROR tests as flash cards (Coming Soon)
You are the Coxswain of a PAC 24 underway in the South Coast Exercise Areas. You have
just departed HMS Richmond South of Rame Head and are on transit to 13 Wharf to conduct
a personnel transfer. It is late afternoon, the weather is fair, visibility is good and winds are
light. When the Navigating Officer briefed you prior to leaving the ship they mentioned that
fog was forecast later in the evening.
- As you approach Penlee Point you sight a T23 Frigate at Green 45, range 1nm as
shown below:
a. You assess that risk of collision exists. Who has right of way and what action
(if any) is required of you? (R.15/R.18)
The T23 has right of way (1) you are required to take action as the give-way vessel in a crossing
situation – keep out of the way and, avoid crossing ahead of the other vessel (1)
As you pass the T23, you notice another vessel at Green 90, range 2nm displaying
this shape: Vertical Can
b. What does this signify and what is your responsibility regarding this vessel?
(R.28/R.18)
She is a vessel constrained by her draught (1) we should not impede her safe passage (1)
- You safely pass the other vessel and alter towards the main channel into Plymouth,
you notice the Panther Shoal starboard lateral mark ahead of you.
c. To which side of the channel should you navigate? (R.9a)
As near to the outer limit of the channel which lies on our own starboard side (1)
As a vessel of less than 20m in length, what 2 things shall you avoid doing in a
narrow channel? (9b./9d.)
Not impede the passage of a vessel which can safely navigate only within a narrow channel or
fairway (1) Not cross a narrow channel or fairway if such crossing impedes the passage of a vessel
which can safely navigate only within such channel or fairway (1)
You cross the channel and steer toward the Bridges, you notice the Speed limit
signs on the Beacons. Name two factors that are to be considered by all vessels when
determining a safe speed?
Any 2 from
The state of visibility
Traffic density including concentrations of fisihing vessels or any other vessels
The manoeuvrability of the vessel with special reference to stopping distance and turning ability in
the prevailing conditions
At night the presence of background light such as from shore lights or from back scatter of her own
lights
The state of wind sea current, and the proximity of navigational hazards
The draught in relation to the availble depth of water
As you exit the Bridges you notice a SERCO vessel passing Devil’s Point. She is on
your Ship’s head at a range 4 cables, you are on her bow and can see her masts in a line.
d. What type of situation is this? (R.14)
Head on (1)
You identify that risk of collision exists. Who has right of way and what action is
required? (R.14/R.18)
Both vessels are required to give way (1) Each shall alter her course to starboard so that
each shall pass on the port side of the other (1)
You sight the Cremyll Ferry underway at Red 45, range 2 cables: heading towards our vessel.
a. What situation is developing and who is required to keep out of the way?
(R.15)
Crossing situation (1) the ferry is the give-way vessel (1)
At night what light configuration would you see?
Head on situation of the other vessel
Masthead lights in a line or nearly in a line and or both side lights (1)
What action are you required to take? (R.17a i)
Keep my course and speed (1)
At what point may the stand-on vessel take action to avoid collision, and by
what means? (R. 17a ii)
As soon as it becomes apparent that the vessel required to keep out of the way is not taking
appropriate action (1) by her manoeuvre alone (1)
As you enter Weston Mill Lake you notice a small rib showing the following flag: White and blue with a indent.
A vessel conducting diving operations (1)
Your intended track passes close to the vessel; what action do you take? (The dive boat.)
Reduce speed / wash and keep clear (1)
You complete the personnel transfer alongside 13 Wharf, prior to departing you
check your watch and notice that the sun has set.
a. When should navigation lights be displayed? (R.20c)
Between sunset and sunrise (1), between sunrise and sunset when navigating in restricted
visibility (1) and in all other circumstances when it is deemed necessary (1).
Given that sunset has occurred, what lights should you now be displaying
(arcs of visibility not required)? (R.23a)
An all-round white light (1) and port and starboard sidelights (2)
Or
A masthead light (1), sidelights (1) and sternlight (1).
You make the VHF report to Longroom and are informed of various warships at
anchor in the Sound.
c. What light configuration shall a vessel of greater than 100m in length display
at anchor? (R.30)
In the fore part an all-round white light (1/2) at or near the stern and at a lower level an all round
white light (1/2) available working or equivalent lights to illuminate her decks (1)
As you make your way back to the Ship you sight the following lights ahead of you.
What do they signify (include vessel type and aspect)? (R.26b)
white over red and a additional red offset and lower
vessel engaged in Pilotage duties (1) viewed from the portside (1)
In restricted visibility what additional sound signal may a vessel at anchor
make to give warning of her position and the possibility of collision to an
approaching vessel? (R. 35g)
3 blasts in succession, one short, one prolonged, one short (1)
Visibility starts to reduce as you pass the Western Breakwater (now assessed to be
approximately 2-3nm). At Red 70 you sight a white light flashing Q9 every 15s. What is this
and what does it indicate? (NP735)
Westerly Cardinal Marker (1) Danger lies to the east of this position keep to the west (1)
You determine that risk of collision exists, what actions should you takein restricted vis? (R.19e)
Reduce speed to the minimum / take all way off (1) navigate with extreme caution until danger of
collision is over (1)
As you continue towards Penlee Point visibility reduces to less than 0.5nm and you
hear 1 prolonged followed by 2 short blasts forward of the beam:
d. Name 3 vessels that this sound signal can be attributed to. (R.35c)
Any 3 from
Sailing vessel
Fishing vessel
Vessel not under command
Vessel restricted in her ability to manoeuvre
Vessel constrained by her draught
Vessel engaged in towing or pushing
You take the appropriate action sight lights at Red 10, range 0.3nm, that
correspond with the location of the sound signals: green over white additional white lower
What do these lights indicate (include vessel type and aspect)? (R.26)
A vessel engaged in trawling underway and making way (1) viewed from the stern (1)
On your current course you will pass 0.1nm to starboard of this vessel; what
situation is this? (R.13 R.18)
Overtaking (1)
What action, if any, is required of you? (R.13)
Keep out of the way of the vessel being overtaken (1)
Visibility improves and you continue your return to mother. On transit you hear a
MAYDAY call on VHF channel 16. A yacht is in distress in vicinity of Falmouth. Other than
VHF radio, name 2 methods a vessel could indicate that they were in distress by night.
(Annex IV).
Any 2 from:
A gun or other explosive signal fired at intervals of about a minute;
A continuous sounding on any fog signalling apparatus
Rockets or shells throwing red stars fired one at a time at short intervals
A signal made by any signalling method consisting of the group …—… (SOS) in the Morse Code.
A signal sent by radio telephony (MF/HF) consisting of the spoken word MAYDAY.
Flames on a vessel.
A rocket parachute flare or hand flare showing a red light.
MF/HF DSC alert.
EPIRB signals.
Ahead of you at 1.5nm you sight HMS Richmond altering course to avoid a cluster of
lights. At this range, you can make out the following configuration:
3 x green lights in a triangle
MCMV (1) Engaged in Mine clearance operations (1)
What is the minimum distance that this vessel should be passed? (R.27f)
Mine clearance
1000m (1)
The bowman asks if this vessel is Restricted in her Ability to manoeuvre and if so,
what lights should she display?
During MCM ops she does not have to signify that she is RAM (1) if she were RAM and making
way, in addition to sidelights and stern light(1), she would display three all-round lights the highest
and lowest being red and the middle white (1)
What type of vessel is this? (R.26) 2 Black cones pointing at each other.
A vessel engaged in fishing (may be trawling or fishing other than trawling).
You assess that risk of collision exists between you and the other vessel. Who
has right of way and what action would you take?(R.18/R.16)
Approaching a vessel fishing
The vessel engaged in fishing has right of way (1) and I would keep out of the way (1).
A Buoy with the top mark of 2 cones pointing towards each other. coloured yellow black yellow
It is a Westerly Cardinal Mark (1). It would show a white light (1/2) flashing groups of 9
flashes Q or VQ (1/2).