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Skysail

IRPCS

Training

1 of 63

Colregs - IRPCS - Collision Regs

Test yourself onlineRYA Day Skipper and Yachtmaster

International Regulations for

Preventing Collisions at Sea

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Skysail

IRPCS

TrainingDay Skipper Colregs

Before 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:http://www.btinternet.com/~keith.bater/irpcs_colregs_complete.htm

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Skysail

IRPCS

TrainingDay 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 CBD

Exceptions to General Rules:

Narrow channels

Traffic Separation Schemes.

Overtaking boats keep clear - sail and

power.

Sailing Rules

1. Starboard tack boat

2. Port tack boat

Sailing boats on the same tack:

Windward boat keeps clear.

Motoring Rules

Boats 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.

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Skysail

IRPCS

TrainingDay Skipper Colregs 3

What is the meaningof this sign?

Vessel at anchor Keep a good lookout at all times by all possible means

What are the rules concerning lookout?

Do the words ‘Right of Way’ appear in the Rules?

What is the meaningof this flag ?

Diver down

Keep well clear at slow speed

No

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Skysail

IRPCS

TrainingDay Skipper Colregs

Sailing vessel

Motor sailing



Vessel fishing

Head on:Turn to StarboardKeep to Starboard side of channel

Converging:Boat on right stands onB goes behind, slows down or stops

Two motor boats meet head on, what action is required?

Two motor boats converge

B

A

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Skysail

IRPCS

TrainingDay Skipper Colregs 5give type of vessel, size and aspect

What vessel carriesthese lights?

Motor vessel

What vessel carriesthis light?

SailingPort side

What vessel carriesthis light?

• Stern light - any vessel

• Vessel at anchor

• Small craft

Over 50m long

from ahead

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Skysail

IRPCS

TrainingOvertaking - Rule 13

When is a vessel overtaking?

A planing sailing dinghy is overtaking a motor cruiser.Which keeps clear?

Any overtaking vessel must keep 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).

22.5º

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Skysail

IRPCS

TrainingRule

Which vessels can you distinguish as either ‘under way’ or ‘making way’ at night?

1. Not Under Command

2. Restricted Ability to Manœuvre

3. Fishing

All other vessels can only be identified as ‘under way’ at night.

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Skysail

IRPCS

TrainingRule

How 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.

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Skysail

IRPCS

TrainingRule

Which vessels can only be distinguished as ‘under way’ at night?

1. Sail2. Power3. Constrained By Draught4. Pilot

Define Tugs as ‘Towing’.

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Skysail

IRPCS

TrainingDefinitions - Rule 21

Match the lights listed to their arcs of visibility:Masthead light, Sidelight, Stern light, All round light360º 112.5º on each side of bow 112.5º on one side of bow only67.5º on each side of stern

All-round lightMasthead light

Side light

Stern light(overtaking sector is 22.5 º aft of the beam)

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Skysail

IRPCS

TrainingRule 24

What additional lights are shown by a tug with:

length of tow 200m or less

length of tow greater than 200m?

One additional masthead light. Yellow towing light at the stern

Two additional masthead lights Yellow towing light at the stern

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Skysail

IRPCS

TrainingRule 24

What lights are shown by a vessel being towed?

Sidelights and a Sternlight

(Same as a sailing vessel, ie no power)

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Skysail

IRPCS

TrainingFishing Vessels - Rule 26

What additional lights must a vessel engaged in trawling show at night?

What shape must it show by day?All-round green over all-round white

Two cones, apex together

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Skysail

IRPCS

TrainingRule 26

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 white light in the direction of the gear

All-round red over all round white

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Skysail

IRPCS

TrainingRule 27

What additional lights are shown by a vessel not under command?

What shape does it show by day?

Two all-round red lights

Two balls in a vertical line

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Skysail

IRPCS

Training

Vessels not under command orrestricted in ability tomanoeuvre - Rule 27

What 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 line

Ball, diamond, ball in a vertical line

1 metre apart

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Skysail

IRPCS

TrainingRule 27

What 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 vertical Two balls vertically

Safe: two 360 º green lights verticalTwo diamonds vertical

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Skysail

IRPCS

TrainingRule 27

What 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 yard

Three balls located as above

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Skysail

IRPCS

TrainingRule 28

What additional lights are shown by a vessel constrained by her draught?

What shape is shown by day?

Three all-round red lights

A cylinder 1m x 2m

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Skysail

IRPCS

TrainingRule 29

What additional lights are shown by a vessel on pilot duty?

What will the pilot vesselshow by day?

What sound signals are made by a pilot vessel on duty

All-round white over all-round red

Flag ‘H’

Four short blasts (Morse ‘H’)

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Skysail

IRPCS

TrainingRule 30

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 avessel > 50m long?

All-round white light forward

A ball forward

An all-round white light low down near the stern

> 50 m port aspect

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Skysail

IRPCS

TrainingRule 30

What lights are shown by vessels aground?

What shape by day?

Three balls in a vertical line

Anchor lights plus two vertical all-round red lights

Port side > 50m)

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Skysail

IRPCS

Training

Manœuvring and WarningSignals - Rule 34

When a vessel makes the following sound signals in good visibility what do they mean?

One short blast

Two short blasts

Three short blasts

Five or more short rapid blasts

I am altering course to starboard

I am altering course to port

I am operating astern propulsion

What are your intentions

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Skysail

IRPCS

TrainingManœuvring and Warning

Signals - Rule 34

What do the following signals mean when made between vessels in a narrow channel?

One long blast

Two long followed by one short blast

Two long followed by two short blasts

One long, one short, one long & one short

I intend to overtake on your starboard side

I intend to overtake on your port side

‘Affirmative’ (by vessel being overtaken)

Vessels approaching blind bend (here I come sounding one)

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Skysail

IRPCS

TrainingManœuvring and Warning

Signals - Rule 35

What sounds should the following vessels make in restricted visibility?

A vessel not under command

A vessel restricted in ability to manoeuvre

A vessel constrained by draught

A fishing vessel

A sailing vessel

A tug

One long followed by two short blasts every 2 mins

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Skysail

IRPCS

Training


What sounds should the following vessels make in restricted visibility?Power vessel making way

Power driven vessel stopped, not making way

A vessel constrained by draught

A sailing vessel

A Pilot boat on duty

One long blast every 2 minutes

Two long blasts every 2 minutes

One long followed by two short every 2 mins

One long followed by two short every 2 mins

Four short blasts(in addition to one long blast for a motor vessel)

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Skysail

IRPCS

Training


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 anchor

Warning of collision - signal by vessel at anchor

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Skysail

IRPCS

Training


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 anchor

Forward Aft

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Skysail

IRPCS

TrainingDistress Signals - Rule 37

What are the International Distress signals?

D y e M a r k e rR a d io t e le p h o n e A la r m S ig n a l / D S C

R a d io t e le g r a p h A la r m s ig n a l / D S C

S A R TS e a r c h & R e s c u e R a d a r

T r a n s p o n d e r

E P I R BE m e r g e n c yP o s i t io nI n d ic a t in gR a d ioB e a c o n

A S q u a r eS h a p e a b o v eo r b e lo w aB a l l S h a p e

C o d e F la g s

‘N ’ a n d ‘C ’

R o c k e t s o r s h e l lst h r o w in gr e d s t a r sa t s h o r tin t e r v a ls

F la m e s o r S m o k eC o n t in u o u s s o u n d w i t h f o g s ig n a l

G u n o r n o is e a t1 m in u t e in t e r v a ls

M o r s e S O S b y r a d io o r a n y o t h e r s ig n a l l in g m e t h o d

O r a n g e S m o k eR e d P a r a c h u t eo r H a n d F la r e

W a v e o u t s t r e t c h e d a r m s s lo w ly u p a n d d o w n

T h e s p o k e n w o r d ‘M A Y D A Y ’ s e n t b y

r a d io t e le p h o n y

D y e M a r k e rR a d io t e le p h o n e A la r m S ig n a l / D S C

R a d io t e le g r a p h A la r m s ig n a l / D S C

S A R TS e a r c h & R e s c u e R a d a r

T r a n s p o n d e r

E P I R BE m e r g e n c yP o s i t io nI n d ic a t in gR a d ioB e a c o n

A S q u a r eS h a p e a b o v eo r b e lo w aB a l l S h a p e

C o d e F la g s

‘N ’ a n d ‘C ’

R o c k e t s o r s h e l lst h r o w in gr e d s t a r sa t s h o r tin t e r v a ls

F la m e s o r S m o k eC o n t in u o u s s o u n d w i t h f o g s ig n a l

G u n o r n o is e a t1 m in u t e in t e r v a ls

M o r s e S O S b y r a d io o r a n y o t h e r s ig n a l l in g m e t h o d

O r a n g e S m o k eR e d P a r a c h u t eo r H a n d F la r e

W a v e o u t s t r e t c h e d a r m s s lo w ly u p a n d d o w n

T h e s p o k e n w o r d ‘M A Y D A Y ’ s e n t b y

r a d io t e le p h o n y

I n t e r n a t io n a l D is t r e s s S ig n a ls

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Skysail

IRPCS

TrainingMore 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 tow

It can help to draw up a table like this, and complete all possible items

Vessel type Power / sail Length Aspect Underway Making way

Tug Tow

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Skysail

IRPCS


You see a single white light.What is it? (3 answers)

1. The stern light of another boat

2. An anchor light

3. A light shown by a vessel < 7m and < 7 knots

eg a small motor boat or dinghy with a torch

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Skysail

IRPCS


When does a sailing vessel on starboard tack give way to another vessel?

1. When it is overtaking boat

2. When it is to windward of another boat on starboard tack

3. When it meets another vessel which is NUC, RAM, CBD, Fishing.

4. When it meets a motor vessel which can only navigate within a narrow channel, or in a Traffic Separation Scheme.

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Skysail

IRPCS


What vessel shows the following lights?

Motor vessel

> 50m long

Bow aspect

Constrained by Draught

Under way

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Skysail

IRPCS



Length not known

VesselNot under command

Starboard aspect

Making way

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Skysail

IRPCS

TrainingMore Colregs Test Questions


Length not known

Vessel Trawling

Stern aspect

Making way

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Skysail

IRPCS



Length not known

Vessel towing

Stern aspect

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Skysail

IRPCS



Sailing Vessel

Under way

Starboard aspect

Length < 20m

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Skysail

IRPCS



Vessel at anchor

Length > 50m

Starboard aspect

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Skysail

IRPCS

TrainingMore Collision Regs questions

Vessel towing. Length over 50m.Port side.Tow less than 200 metres long

Vessel towing, length under 50m.Starboard side

Tow over 200 metres long

What vessel carries these lights?

What vessel carries these lights?

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Skysail

IRPCS


What is meant by the following sound signals??

Motor vessel – stopped in restricted visibilityAdditional warning – vessel anchored in restricted visibility

My engines are in astern propulsion

Pilot vessel – making way in fog

I intend to overtake to starboard

I intend to overtake to port

Affirmative

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Skysail

IRPCS

Training

Colregs, IRPCS,

International Regulations forPreventing Collisions at Sea

skysail irpcs training 1 of 63 colregs - irpcs - collision regs test yourself online rya day skipper...

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