Subject 5 of 10

Lookout and giving way

Keep looking and listening, work out which vessel must give way and act clearly. Whatever your role, you must help prevent a collision.

Two motor cruisers on Sydney Harbour-style water: one keeps clear while the other holds its course.
Illustrative image

Decide

Four situations at sea. Decide first, then read why.

View forward from a runabout on Pittwater, with another powered runabout ahead to starboard moving from right to left across its projected track, and clear water behind the crossing boat.
Illustrative image

From your runabout on Pittwater, another powered boat approaches from your starboard side on a crossing track. Neither is overtaking. What do you do?

Key points

  1. Look and listen all aroundA proper lookout is continuous and includes what is behind you.
    1. Use sight and hearing; keep music low enough to hear warnings. Look for navigation lights and unlit hazards at night.
    2. Watch for low craft, people in the water, lines and floating hazards. Keep spinning propellers away from people.
    3. Use radar if fitted, dim its display at night and get a lookout person to help when your view is blocked.
    4. Watch for seaplanes; check overhead clearance against your boat's full height and the water level.
    Lookout and risk
  2. Head-on and crossing under powerHead-on: both turn right. Crossing: give way to the boat on your right.
    1. Give way early by a clear course or speed change.
    2. The stand-on boat maintains course and speed only if safe.
    3. Both skippers stay ready to prevent collision.
    Crossing
  3. Sailing rulesPower normally gives way to sail; check for overtaking and special vessels.
    1. A yacht using its engine follows powered-vessel rules.
    2. Under sail: port tack gives way to starboard tack; on the same tack, windward gives way.
    3. Sydney Harbour's orange-diamond ferry priority over sail applies during the day, except when the ferry is overtaking a sailing vessel. It does not apply at night; both skippers must still avoid collision.
    Responsibilities
  4. The overtaking boat keeps clearOvertaking applies to every type of vessel, including sail overtaking power.
    1. Pass on either side only when safe, with safe speed and clearance.
    2. Do not cut in front of the boat you pass.
    3. If being overtaken, maintain course and speed if safe.
    Overtaking and head-on
  5. Give working vessels roomKeep well clear of big ships, dredges, work barges and commercial fishing vessels.
    1. Do not obstruct a ship or pass between it and its escort.
    2. Dredge: two diamonds show the safe side; two balls mark the obstructed side.
    3. Moving cable ferry: 4 knots or less within 100 metres of its chains, ropes or cables. Pass safely behind, preferably after it reaches shore, and turn power off when crossing its chains, ropes or cables.
    Responsibilities between vessels
  6. Act early and check the resultYou must avoid collision even if the other skipper does nothing.
    1. Make a change large enough to be clearly seen; avoid repeated tiny alterations.
    2. Slow, stop, reverse or alter course as appropriate to the situation.
    3. Keep watching until the danger has passed.
    Conduct
  7. Keep right in narrow waterwaysIn a narrow channel or river, keep as far to starboard as practical.
    1. Keeping to starboard is also recommended in other channels and rivers.
    2. A channel may be narrow because a larger vessel needs its width or deepest water.
    3. Use a safe speed, take extra care at bends and never block the waterway.
    Pilotage

Check what you have read

Question 1/3

Before changing course on Lake Macquarie, where should your lookout extend?

Worked case: A crossing on Pittwater

You are driving a runabout across open water on Pittwater in daylight. Another runabout approaches from your starboard side and your tracks will cross. Neither boat is overtaking. There is plenty of clear water behind the other boat, but a kayak is off your port quarter.

Before you read the solution: what would you do?

    True or false?

    Decide each statement before you see the answer.

    1. I am the stand-on boat, so I must never change course or speed.

    2. A few tiny turns will show the other skipper I am giving way.

    3. A proper lookout is continuous and includes what is behind you.

    4. Two diamonds mean I can pass right beside a dredge.

    5. A yacht always has priority over a motorboat.

    6. You must avoid collision even if the other skipper does nothing.

    7. In a narrow channel or river, keep as far to starboard as practical.

    8. Keep well clear of big ships, dredges, work barges and commercial fishing vessels.

    9. Overtaking applies to every type of vessel, including sail overtaking power.

    10. The middle of a narrow channel is the correct place for my runabout.

    11. Power normally gives way to sail; check for overtaking and special vessels.

    12. I only need to look ahead; boats behind must avoid me.

    Exercise: See the situation, choose the action

    Practise three decisions on a daylight trip. Assume there is room for the stated manoeuvre and no special vessel signals unless mentioned.

    Step by step

    1. On Sydney Harbour, a powered cruiser is coming directly towards your powered boat. What should happen?

      Show the solution

      For powered vessels meeting head-on, both turn to starboard. Check that your turn is safe and make it clear early. Handbook, p. 83.

    2. Later, another powered boat approaches from your starboard side on a crossing track. Who gives way?

      Show the solution

      In this powered-vessel crossing, you give way to the boat on your right. Alter course or slow early to let it pass. Handbook, pp. 82–83.

    3. Put this safe response to the crossing in order.

      1. 1Keep watching until both vessels are safely clear
      2. 2Recognise that you must give way
      3. 3Check your manoeuvre is safe and make a clear early change
      4. 4Look all around and identify the crossing risk
      Show the solution

      Look first, identify your responsibility, act clearly and check the result. Do not stop looking once you have changed course or speed. Handbook, pp. 79, 82 and 88.

    4. You then enter a narrow river reach. Where should you travel?

      Show the solution

      The narrow-channel rule requires you to keep as far to starboard as practical. Take extra care at bends and do not block the river. Handbook, p. 88.

    Now on your own

    Now try a Hawkesbury River trip. Think about the vessel's activity as well as its type.

    1. A yacht under sail is overtaking your powered boat. Which vessel must keep well clear?

    2. A vehicular ferry is moving. Within 100 metres of its chains, ropes or cables, what is the maximum speed?

    3. You are now the stand-on boat in a separate crossing. The other skipper has not acted and a collision is developing. What do you do?

    4. Before towing a water skier on an unfamiliar reach after a flood, what does the handbook recommend?

    Check: 10 questions

    Questions from this subject, explained after each answer.

    Free: lesson + 10 questions · Exam Pass: all 27 questions, unlimited practice tests, your mistakes retrained

    More on this

    The full explanation and the lessons for each programme item

    Topic 1 of 6

    Keep looking and listening

    As skipper, you must keep a proper lookout by sight and hearing at all times.

    Look all around, including behind you. You need to understand what is happening and judge the risk of a collision, not just watch the water ahead. Loud music can hide a shout or another vessel's signal. Boating Handbook, p. 79.

    Look for swimmers, divers and low craft such as kayaks. A blue and white Alpha flag warns that divers, snorkellers or spearfishers are nearby. Keep a safe distance from people in the water and keep spinning propellers away from them: a propeller strike can cause serious injury or death. Large vessels can be moving much faster than they seem. In mooring areas, watch for dinghies and lines as well as the moored boats. Boating Handbook, pp. 79–80.

    Keep a safe speed and take extra care when visibility is poor. If you have radar, use it to help your lookout; dim its display at night to protect your night vision. The handbook recommends a lookout person, especially if your view is blocked. You still have your responsibility as skipper.

    At night, look for other vessels' navigation lights and take extra care with unlit floating or submerged hazards. Watch for seaplanes taking off or landing on waterways such as Pittwater. Avoid sudden changes of direction that could confuse the pilot or obstruct the aircraft. On the water, seaplanes follow the same rules as other powered vessels. Boating Handbook, p. 81.

    • Scan for logs, debris, fishing equipment and submerged hazards, as well as vessels.
    • Watch bridges, jetties and overhead powerlines. Obey maximum-height signs and know your boat's full height, including its mast and fishing poles. Charted bridge heights are measured at mean high water. Tides and floods change the available clearance, and a lightly loaded boat may need more height. Boating Handbook, p. 81.
    • Look for aquatic animals and avoid harming them. When towing a person, both the driver and the observer must keep a lookout. Before towing, the handbook recommends checking for debris, sandbars and snags. Take extra care on unfamiliar or recently flooded waterways. Boating Handbook, p. 81.

    Sources

    Checked against the official sources on .