2Day Skipper ColregsBefore the detailed Collision Regs examples, there is a short section on what you need to know for the RYA Day Skipper course.The full text of IRPCS is here:
3Day Skipper - Colregs 2 General Rules for Priority: 1. Not Under Command 2. Restricted Ability to Manoeuvre 3. Constrained by Draught 4. Fishing 5. Sail 6. Motor (including motor sailing) Tugs are treated as motor vessels, unless they are also RAM or CBDExceptions to General Rules: Narrow channels Traffic Separation Schemes.Overtaking boats keep clear - sail and power.Sailing Rules1. Starboard tack boat 2. Port tack boat Sailing boats on the same tack: Windward boat keeps clear.Motoring RulesBoats meeting head on - both turn to starboard.If two power vessels are crossing, the boat which has the other on her own starboard side shall keep out of the way.
4Day Skipper Colregs 3What is the meaning of this sign?What are the rules concerning lookout?Vessel at anchorKeep a good lookout at all times by all possible meansWhat is the meaning of this flag ?Do the words ‘Right of Way’ appear in the Rules?NoDiver downKeep well clear at slow speed
5Day Skipper Colregs Sailing vessel Motor sailing Vessel fishing Two motor boats meet head on, what action is required?What is the meaning of this sign?Head on: Turn to Starboard Keep to Starboard side of channelSailing vesselMotor sailingWhat is the meaning of this sign?Two motor boats convergeBAConverging: Boat on right stands onB goes behind, slows down or stopsVessel fishing
6Day Skipper Colregs 5 give type of vessel, size and aspect What vessel carries these lights?What vessel carries this light?Over 50m longMotor vesselfrom aheadWhat vessel carries this light?Vessel at anchorStern light - any vesselSailing Port sideSmall craft
7Any overtaking vessel must keep clear Overtaking - Rule 13When is a vessel overtaking?A planing sailing dinghy is overtaking a motor cruiser.Which keeps clear?When it is approaching from an angle more than 22.5º abaft the beam of another vessel (ie in the arc of the stern light).22.5ºAny overtaking vessel must keep clear
8RuleWhich vessels can you distinguish as either ‘under way’ or ‘making way’ at night?Not Under CommandRestricted Ability to ManœuvreFishingAll other vessels can only be identified as ‘under way’ at night.
9How do vessels at night indicate they are making way? RuleHow do vessels at night indicate they are making way?Not Under Command:shows side and stern lights NB no steaming light at masthead.Restricted Ability to Manœuvre, and Fishing:show side lights, stern lights and masthead (steaming) lights.
10Which vessels can only be distinguished as ‘under way’ at night? RuleWhich vessels can only be distinguished as ‘under way’ at night?SailPowerConstrained By DraughtPilotDefine Tugs as ‘Towing’.
11Definitions - Rule 21Match the lights listed to their arcs of visibility:Masthead light, Sidelight, Stern light, All round light360º112.5º on each side of bow112.5º on one side of bow only67.5º on each side of sternAll-round lightMasthead lightSide lightStern light (overtaking sector is 22.5 º aft of the beam)
12Rule 24What additional lights are shown by a tug with:length of tow 200m or lesslength of tow greater than 200m?One additional masthead light.Yellow towing light at the sternTwo additional masthead lightsYellow towing light at the stern
13What lights are shown by a vessel being towed? Rule 24What lights are shown by a vessel being towed?Sidelights and a Sternlight(Same as a sailing vessel, ie no power)
14Fishing Vessels - Rule 26What additional lights must a vessel engaged in trawling show at night?What shape must it show by day?All-round green over all-round whiteTwo cones, apex together
15Rule 26 All-round red over all round white What additional lights must a vessel engaged in fishing other than trawling show at night?When its gear extends more than 150m to the side what further additional light and shape must it show?All-round red over all round whiteAll-round white light in the direction of the gear
16Rule 27What additional lights are shown by a vessel not under command?What shape does it show by day?Two all-round red lightsTwo balls in a vertical line
17What shapes does it show by day? Vessels not under command or restricted in ability to manoeuvre - Rule 27What additional lights are shown by a vessel restricted in its ability to manœuvre?What shapes does it show by day?All-round red, white, red in a vertical lineBall, diamond, ball in a vertical line1 metre apart
18Rule 27What lights and shapes are shown by a vessel engaged in dredging or underwater operations to show which side to pass?The safe side?Unsafe: two 360º red lights verticalTwo balls verticallySafe: two 360 º green lights verticalTwo diamonds vertical
19Three balls located as above Rule 27What additional lights are shown by a minesweeper at work?What shapes by day?Three all-round green lights, one at the masthead and one at the end of each yardThree balls located as above
20Three all-round red lights Rule 28What additional lights are shown by a vessel constrained by her draught?What shape is shown by day?Three all-round red lightsA cylinder1m x 2m
21All-round white over all-round red Rule 29What additional lights are shown by a vessel on pilot duty?What will the pilot vessel show by day?What sound signals are made by a pilot vessel on dutyAll-round white over all-round redFlag ‘H’Four short blasts (Morse ‘H’)
22Rule 30 All-round white light forward A ball forward What lights are shown by vessels less than 50m in length at anchor?What shape by day?What additional light is shown at anchor by a vessel > 50m long?All-round white light forwardA ball forwardAn all-round white light low down near the stern> 50 m port aspect
23What lights are shown by vessels aground? Rule 30What lights are shown by vessels aground?What shape by day?Anchor lights plus two vertical all-round red lightsPort side > 50m)Three balls in a vertical line
24Manœuvring and Warning Signals - Rule 34 When a vessel makes the following sound signals in good visibility what do they mean?One short blastTwo short blastsThree short blastsFive or more short rapid blastsI am altering course to starboardI am altering course to portI am operating astern propulsionWhat are your intentions
25Manœuvring and Warning Signals - Rule 34 What do the following signals mean when made between vessels in a narrow channel?One long blastTwo long followed by one short blastTwo long followed by two short blastsOne long, one short, one long & one shortVessels approaching blind bend (here I come sounding one)I intend to overtake on your starboard sideI intend to overtake on your port side‘Affirmative’ (by vessel being overtaken)
26Manœuvring and Warning Signals - Rule 35 What sounds should the following vessels make in restricted visibility?A vessel not under commandA vessel restricted in ability to manoeuvreA vessel constrained by draughtA fishing vesselA sailing vesselA tugOne long followed by two short blasts every 2 mins
27Manœuvring and Warning Signals - Rule 35 What sounds should the following vessels make in restricted visibility?Power vessel making wayPower driven vessel stopped, not making wayA vessel constrained by draughtA sailing vesselA Pilot boat on dutyOne long blast every 2 minutesTwo long blasts every 2 minutesOne long followed by two short every 2 minsOne long followed by two short every 2 minsFour short blasts (in addition to one long blast for a motor vessel)
28Manœuvring and Warning Signals - Rule 35 In fog , you hear one long blast followed by three short. What is it?In fog, you hear a bell rung rapidly for 5 seconds. What is it?In fog, you hear this signal. What is it?A vessel under tow (last vessel in tow)A vessel less than 100m long at anchorWarning of collision - signal by vessel at anchor
29Manœuvring and Warning Signals - Rule 35 In fog , you hear one long blast followed by three short. What is it?In fog, you hear a bell rung rapidly for 5 seconds, then a gong, every minute. What is it?A vessel under tow (last vessel in tow)A vessel >100m long at anchorForwardAft
30Distress Signals - Rule 37 What are the International Distress signals?
31More IRPCS Test Questions In the questions that follow, give all possible information:Type of vessel (NUC, RAM, CBD etc)Power or sailUnder way or making wayLengthAspect (starboard, port, stern, bow)Length of tug and Length of towIt can help to draw up a table like this, and complete all possible itemsVessel typePower / sailLengthAspectUnderway Making wayTug Tow
32More IRPCS Test Questions You see a single white light. What is it? (3 answers)The stern light of another boatAn anchor lightA light shown by a vessel < 7m and < 7 knots eg a small motor boat or dinghy with a torch
33More IRPCS Test Questions When does a sailing vessel on starboard tack give way to another vessel?When it is overtaking boatWhen it is to windward of another boat on starboard tackWhen it meets another vessel which is NUC, RAM, CBD, Fishing.When it meets a motor vessel which can only navigate within a narrow channel, or in a Traffic Separation Scheme.
34More IRPCS Test Questions What vessel shows the following lights?> 50m longConstrained by DraughtUnder wayMotor vesselBow aspect
35More IRPCS Test Questions What vessel shows the following lights?Vessel Not under commandStarboard aspectMaking wayLength not known
36More Colregs Test Questions What vessel shows the following lights?Vessel TrawlingStern aspectMaking wayLength not known
37More Colregs Test Questions What vessel shows the following lights?Vessel towingStern aspectLength not known
38More Colregs Test Questions What vessel shows the following lights?Sailing VesselUnder wayStarboard aspectLength < 20m
39More IRPCS Test Questions What vessel shows the following lights?Vessel at anchorStarboard aspectLength > 50m
40More Collision Regs questions What vessel carries these lights?Vessel towing. Length over 50m. Port side. Tow less than 200 metres longWhat vessel carries these lights?Vessel towing, length under 50m. Starboard sideTow over 200 metres long
41More IRPCS Test Questions What is meant by the following sound signals??Motor vessel – stopped in restricted visibilityAdditional warning – vessel anchored in restricted visibilityMy engines are in astern propulsionPilot vessel – making way in fogI intend to overtake to starboardI intend to overtake to portAffirmative
42International Regulations for Preventing Collisions at Sea Colregs, IRPCS,International Regulations for Preventing Collisions at Sea