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Yachtmaster School / Collision avoidance

Build a proper lookout routine

Connect observation, communication and speed to the conditions around you.

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Our goal today

Describe a lookout routine that does not depend on one display or a fixed speed.

What you’ll practise

  • Using sight, hearing and appropriate available aids
  • Responding to blind sectors and reduced visibility
  • Keeping watch handovers and reports explicit

Each question includes a custom diagram, the reasoning behind the answer, an explanation of the other choices and a follow-up exercise. Try the quiz first, or use the study view to read every answer.

01 / Learn

Lookout is an active job

COLREG Rule 5 requires a proper lookout using sight, hearing and appropriate available means. Rule 6 addresses safe speed. A lookout is not just someone standing on deck: observations must reach the person making decisions.

02 / Learn

Try a crew scenario

On a fictional training sail, one crew member studies a chart while another steers. A third notices a small craft but assumes the helm has seen it. The gap is communication. Agree who scans, how observations are reported and how the helm acknowledges them. Do not assume electronic targets include every nearby vessel.

03 / Learn

Reassess as conditions change

Visibility, traffic, manoeuvring ability and the surrounding water affect the speed decision. A posted limit does not establish that the maximum permitted speed is appropriate. In a discussion exercise, ask what changes when visibility deteriorates, traffic increases or the crew becomes distracted. Read the full rules with your instructor; this lesson does not prescribe manoeuvres.

Your two-minute exercise

Run a tabletop briefing with a partner: one observes a fictional small craft, the other is steering. Practise a clear report and acknowledgement without assuming a collision-avoidance action.

Keep learning from the source

Source check: . Scenarios and quiz questions are original YouSail practice material. Editorial policy.

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Have a go

Boating Lookout & Safe Speed Quiz

10 illustrated questions. Worked explanations and practical follow-ups for every answer.

A proper lookout relies on…
A crew member beside a yacht with an eye symbol, sound waves and a small display.
Taking in the whole sceneIllustrative · not to scale · tap to enlarge ↗
Read the answer and explanation

Answer: Sight, hearing and appropriate available means

Why this answer works

Lookout requires active observation through appropriate available means.

Why the other choices fall short

No single display can replace all observation. Sight and hearing reveal hazards and signals that may not be represented electronically, while appropriate available aids add information.

Put it into practice

Identify blind sectors and avoidable noise before departure. Agree who watches each area and how an important observation will reach the helm.

A crew member notices a vessel the helm may not have seen. What is useful?
An observer and helm with a speech bubble between them and a small vessel offshore.
Make the observation heardIllustrative · not to scale · tap to enlarge ↗
Read the answer and explanation

Answer: Report it clearly and obtain acknowledgement

Why this answer works

An observation helps only if the decision-maker receives and understands it.

Why the other choices fall short

Noticing something privately does not ensure the person controlling the boat knows it. A clear report plus acknowledgement closes the gap between observation and response.

Put it into practice

Practise a short report identifying the object and its direction. Ask the receiver to acknowledge it so the observer knows the information was heard.

The displayed speed limit is 6 knots. Does that prove 6 knots is safe now?
A circular six-knot limit sign beside a yacht and a changing-conditions cloud.
A limit and the conditionsIllustrative · not to scale · tap to enlarge ↗
Read the answer and explanation

Answer: No; the conditions still matter

Why this answer works

A legal maximum is not a universal safe speed for the conditions.

Why the other choices fall short

A posted limit is a maximum, not a finding that the maximum is safe under every condition. Visibility, traffic and manoeuvring ability still influence the choice.

Put it into practice

Describe a situation where you would need to be below the limit. Explain how your speed affects the time and space available to detect and avoid danger.

Visibility reduces while traffic increases. What should be reconsidered?
Two views of a yacht and nearby traffic, the second partly covered by mist.
When visibility changesIllustrative · not to scale · tap to enlarge ↗
Read the answer and explanation

Answer: Lookout arrangements and safe speed

Why this answer works

Changed conditions call for a fresh assessment of observation and speed.

Why the other choices fall short

Worse visibility reduces detection time while more traffic increases the number of developing encounters. Keeping the old arrangement assumes neither change matters.

Put it into practice

Review both speed and the coverage of the lookout. Check whether the crew can still detect, communicate and respond to hazards in the available time.

No target appears on an electronic display. Can you conclude the water is empty?
An empty navigation-display screen beside a separate view of water.
What does the display show?Illustrative · not to scale · tap to enlarge ↗
Read the answer and explanation

Answer: No; maintain a proper lookout

Why this answer works

A display is one source of information and may not show every vessel or hazard.

Why the other choices fall short

A missing electronic target may reflect the limits of that system rather than an empty waterway. Small objects and non-transmitting craft may not appear as expected.

Put it into practice

Continue observing all around and use appropriate available means together. Treat a blank screen as one piece of information, not proof that no hazard exists.

Which crew arrangement closes a communication gap?
Three crew members with a shared observation board and labelled lookout and reporting notes.
Who is keeping watch?Illustrative · not to scale · tap to enlarge ↗
Read the answer and explanation

Answer: Named roles and acknowledged reports

Why this answer works

Clear responsibility and communication support earlier awareness.

Why the other choices fall short

An unnamed shared duty can leave everyone assuming someone else is responsible. A report without acknowledgement leaves the observer unsure whether the information reached the helm.

Put it into practice

Assign the lookout and agree the reporting method. Practise acknowledging a report and handing the role over explicitly when the watch changes.

A headsail blocks part of the helmsman’s view. Which arrangement best addresses the blind sector?
A lookout illustration combines an eye, a listening symbol and labels for restricted view and reporting.
A blind sector under sailIllustrative · not to scale · tap to enlarge ↗
Read the answer and explanation

Answer: Assign and position a lookout who can see it and report clearly

Why this answer works

Lookout must cover the surroundings by sight and hearing. Give someone a clear role and view of the obscured sector; electronic displays cannot be assumed to show every hazard.

Why the other choices fall short

Scanning the visible side more often still leaves the same blind sector. Waiting for a sound signal or relying on displayed targets postpones detection instead of fixing the gap.

Put it into practice

Position the lookout so the obscured sector is actually covered. Recheck coverage after sail changes or manoeuvres that alter the view.

You are below the posted speed limit, but glare makes small craft hard to see. What should determine whether your speed is safe?
Yachts and a smaller craft appear in a visibility comparison with pale bands representing glare.
Below the limit, poor visibilityIllustrative · not to scale · tap to enlarge ↗
Read the answer and explanation

Answer: Visibility, traffic and the ability to detect and avoid danger in time

Why this answer works

A limit is a maximum, not proof that every lower speed is safe. Poor visibility and difficult-to-see traffic can call for a lower speed and a more effective lookout.

Why the other choices fall short

Compliance with the limit alone does not establish safe speed, and another boat's speed does not establish what is safe for yours. Engine sound is not a measure of hazard-detection time.

Put it into practice

Consider the distance at which a small craft becomes visible in the glare. Choose arrangements that leave adequate time and space for an effective response.

The crew turns up music while approaching a busy mooring area. What is the most useful immediate adjustment to the lookout arrangement?
Three crew members around a plan with labels for busy moorings, music and lookout reports.
Can the lookout hear?Illustrative · not to scale · tap to enlarge ↗
Read the answer and explanation

Answer: Reduce the noise and ensure sight and hearing remain effective

Why this answer works

A proper lookout includes hearing. Reduce avoidable noise and maintain observation all around, especially where dinghies, swimmers and trailing ropes may be present.

Why the other choices fall short

A plotter does not restore hearing, and sending everyone below removes visual coverage. Photographs are isolated records rather than a continuous lookout.

Put it into practice

Reduce avoidable noise and confirm who is watching the mooring area. Account for small craft, people in the water and ropes as well as larger vessels.

At watch change, the outgoing lookout goes below before the incoming person has confirmed taking over. What is the immediate weakness?
Outgoing and incoming lookout positions appear on opposite sides of a handover line, with confirmation questioned.
Who has the lookout?Illustrative · not to scale · tap to enlarge ↗
Read the answer and explanation

Answer: There may be a gap in who is actively keeping and reporting the lookout

Why this answer works

A named role only works when someone actually holds it. An explicit handover and acknowledgement establish who is observing and reporting, rather than leaving each person to assume the other has taken responsibility.

Why the other choices fall short

The other choices describe unrelated technical changes. The problem here is continuity of observation and communication, even if instruments and the route are unchanged.

Put it into practice

Practise handing over the current observations as well as the role. The incoming lookout should confirm the sector, reporting method and relevant developing situations.

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Practice only: this quiz is not an official RYA examination or an assessment of practical competence. Leaving mid-quiz starts that attempt again.

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