When Two Boats Meet — Tactics, Rules and Good Seamanship
Being entitled to sail somewhere doesn't always mean sailing there is sensible.
One of the first slightly alarming experiences for a new racing sailor is discovering that boats sometimes appear to be deliberately sailing towards one another.
You are on starboard tack. Another boat is approaching on port. Neither boat initially seems to be doing anything about it.
Surely somebody ought to turn?
Then, perhaps only a few metres apart, the port-tack boat ducks behind your stern. Or it tacks ahead. Or you alter course slightly and both boats continue racing as though nothing particularly exciting has happened.
To an experienced racing sailor, this can be perfectly normal.
To somebody entering their first few races, it can look like a collision narrowly avoided.
Understanding what happens when two boats meet is therefore about much more than memorising a few racing rules.
It involves three things:
rules, tactics and seamanship.
And they are not always the same thing.
Why We Need Right-of-Way Rules
Imagine two cars approaching one another on an unrestricted piece of road with no convention about which side to use.
Both might decide to turn left.
Both might decide to turn right.
Or each might assume the other will move.
That uncertainty creates danger.
Sailing needs conventions for exactly the same reason.
When two boats are on converging courses, both crews need to have a reasonable idea of what the other boat is expected to do.
The Racing Rules of Sailing provide that framework.
For somebody beginning racing, two situations are particularly important:
port tack versus starboard tack;
windward boat versus leeward boat.
There are many more rules, particularly around marks, starts and obstructions, but understanding these two situations gives a new racer a very useful foundation.
Port and Starboard — The First Rule to Learn
When boats are on opposite tacks, the boat on port tack keeps clear of the boat on starboard tack.
But beginners sometimes misunderstand what determines the tack.
It isn't simply the direction in which the boat is travelling.
A useful practical guide is to look at the boom.
If the wind is coming over the starboard side, the boom will normally be towards port and the boat is on starboard tack.
If the wind is coming over the port side, the boom will normally be towards starboard and the boat is on port tack.
Imagine two boats beating towards the windward mark.
One is approaching from the left-hand side of the course on starboard tack.
The other is approaching on port tack.
Their courses cross.
The port-tack boat must keep clear.
But that does not necessarily mean the port boat must immediately tack.
It has several tactical choices.
It might:
tack underneath the starboard boat;
tack ahead if there is genuinely sufficient room;
bear away and pass behind the starboard boat;
anticipate the crossing much earlier and choose a completely different route.
That is where racing becomes interesting.
The rule tells you who must keep clear.
Tactics determine how you deal with the situation.
Sometimes Ducking Is Faster Than Tacking
New racers can become strangely reluctant to sail behind another boat.
It feels like admitting defeat.
But sometimes a small duck behind a starboard-tack boat is considerably faster than performing an unnecessary tack.
Suppose I am sailing on port tack and another boat is crossing ahead on starboard.
I could tack.
But a tack costs something.
The boat turns towards the wind, the sails lose some driving force, the crew changes sides, the boat accelerates again and I may now be sailing towards a part of the course I didn't particularly want to visit.
Instead, I might ease slightly, bear away, pass close behind the starboard boat and then return to my original course.
I've lost a few metres.
But I have retained speed and remained on the tack I wanted.
The shortest route through an encounter is not necessarily the fastest route out of it.
Windward and Leeward — The Other Essential Relationship
Now imagine two boats on the same tack.
They are sailing roughly alongside one another.
One boat is closer to the direction from which the wind is coming. That is the windward boat.
The other is the leeward boat.
In the basic situation, the windward boat must keep clear of the leeward boat.
Again, the rule is relatively straightforward.
The tactical consequences are much more interesting.
The leeward boat may be able to influence where the windward boat can sail. The windward boat may find its clean air disappearing. The boats may be approaching a bank, mark, obstruction or another group of competitors.
What began as a simple sailing rule has suddenly become a tactical situation.
Why Windward and Leeward Matter So Much
Imagine two boats beating alongside one another.
The leeward boat is slightly ahead.
The windward boat may already be in a difficult position because the leeward boat can disturb its airflow.
On open water there may be considerable space available.
On a river such as the Thames, there may be rather less.
Trees, banks, moored boats, bends in the river and other competitors can compress the available racing area remarkably quickly.
That makes anticipation extremely important.
A situation that looks harmless when boats are 50 metres apart may become awkward surprisingly quickly.
One of the biggest improvements a developing racing sailor can make is therefore to stop asking:
"What do I need to do now?"
and start asking:
"What is likely to happen in 10 or 20 seconds?"
Right of Way Does Not Mean Unlimited Rights
This is perhaps the most important part of the whole subject.
Having right of way does not give a sailor permission to do anything they like.
The Racing Rules contain obligations affecting right-of-way boats too, including requirements concerned with avoiding contact and giving another boat appropriate room when circumstances change.
That matters enormously.
Imagine I am on starboard tack and another boat is approaching on port.
I am the right-of-way boat in that basic encounter.
That doesn't mean I should deliberately create a collision simply because I can later say:
"But I was on starboard."
The objective of sailing isn't to prove that the hole in your hull was somebody else's fault.
The Difference Between Rights and Good Seamanship
This is something I think is particularly important when encouraging newcomers into racing.
A beginner may know that they are supposed to keep clear but misjudge the distance.
They may hesitate.
They may try to tack and make a mess of it.
They may not realise how quickly the boats are converging.
An experienced helm can sometimes see the problem developing long before the beginner does.
At that point there are two possible attitudes.
One is:
"I have right of way."
The other is:
"How do we make sure these boats don't collide?"
Good sailors understand both.
Rules make racing possible.
Seamanship keeps it safe.
Avoiding Contact Is More Important Than Winning an Argument
A sailing boat can be repaired.
But collisions can damage hulls, spars and rigging, and people can be injured.
That becomes particularly important when boats differ greatly in size or speed.
On the Thames we might have dinghies, keelboats, traditional boats, juniors, beginners, cruising boats and considerably faster racing boats sharing the same stretch of water.
A manoeuvre that seems completely routine to an experienced racing crew may look very different to somebody still learning.
There is therefore an important principle worth carrying into every race:
Never allow a predictable incident to develop simply because you believe the rules are on your side.
If avoiding action becomes necessary, take it.
The protest room can decide rules afterwards.
It cannot undo a collision.
Don't Confuse Close Racing with Aggressive Sailing
Good racing can involve boats passing extremely close together.
That doesn't automatically make it dangerous.
Two experienced crews may understand exactly what is happening.
The port boat knows it can safely duck.
The starboard boat knows the port boat has seen it.
Both crews understand their speeds and turning circles.
There may be only a metre or two between them, yet the encounter is completely controlled.
The important word is controlled.
Close racing becomes poor seamanship when uncertainty replaces control.
If you are thinking:
"I don't know whether they've seen us..."
that is useful information.
Do something with it.
Communication Helps
One of the simplest ways of preventing confusion is communication.
A clear call can establish that boats have seen one another and understand that a situation is developing.
But shouting should never become a substitute for understanding the rules.
Nor does shouting loudly create a right that wasn't there before.
Communication works best when it is clear, early and purposeful.
The same applies within your own boat.
A crew might say:
"Port boat approaching."
Then:
"They're not looking."
That information gives the helm time to make a decision.
On a three-person boat such as an A-Rater, this becomes especially important. The helm cannot spend every second looking in every direction. Good crew members become additional pairs of eyes.
They are watching traffic as well as sails.
A Practical Example: The Port-Tack Crossing
Imagine we are beating upriver.
We are on port tack.
A starboard-tack boat is approaching.
Situation 1 — We will clearly pass behind
No drama.
Maintain awareness, make any necessary small adjustment and continue.
Situation 2 — It will be extremely close
Now we need a decision.
Can we make a controlled duck?
Would an early tack be better?
What happens after the manoeuvre?
Situation 3 — We probably cannot cross
Make the decision early.
A late panic tack is usually slower and considerably more dangerous than an early controlled manoeuvre.
Situation 4 — We think we can just squeeze across
This is where judgement matters.
What happens if the wind changes?
What happens if our boat slows?
What happens if the other boat alters speed?
A racing strategy based on "I think we'll just make it" eventually produces an expensive noise.
The Tactical Value of Looking Behind
Beginners naturally spend most of their time looking forwards.
Unfortunately, other boats do not only approach from forwards.
A faster boat may be catching you.
Another competitor may be positioning to windward or leeward.
A boat behind may be preparing to tack.
This is why experienced racing crews seem constantly to be looking around.
They are not simply steering the boat they have now.
They are building a mental picture of the race that will exist in a few seconds.
Before making a major manoeuvre, get into the habit of looking.
Before tacking:
Look.
Before gybing:
Look.
Before changing course significantly:
Look.
Before assuming there is nobody there:
Definitely look.
On a River, Situations Develop Very Quickly
River racing adds another layer.
On open water you may have enormous amounts of space.
On a narrow river you may have a bank on one side, moored boats on another, several competitors nearby and a wind that has just shifted because it has passed around a line of trees.
The tactical picture can change within seconds.
A boat that appeared comfortably separated may suddenly converge with you because one of you receives a lift or header.
This is another reason why learning the rules should never become an exercise in memorising isolated diagrams.
Real sailing moves.
The wind changes.
Boats accelerate.
Boats slow.
Crews make mistakes.
The situation evolves continuously.
What Should a New Racer Actually Learn First?
You do not need to memorise the entire rule book before entering your first club race.
But you should understand the basic encounters.
Start with:
port keeps clear of starboard;
windward keeps clear of leeward;
understand what happens when boats overlap or approach marks;
know that boats changing course may acquire additional obligations;
know that avoiding contact matters;
learn the basic rules applying at the start and around marks.
Then add more knowledge as your racing develops.
Most importantly, ask experienced sailors about situations afterwards.
"What should I have done there?"
is one of the most useful questions a developing racer can ask.
Turn the Race into a Learning Exercise
After racing, think back to three boat-to-boat encounters.
For each one ask:
Which boat was required to keep clear?
When did I first recognise the situation?
What options did I have?
Did I choose the best tactical option?
Could I have made the situation simpler by acting earlier?
This turns rules into practical racing knowledge.
Eventually, you stop consciously reciting:
"Port keeps clear of starboard."
You simply recognise the situation.
That is when the rules start becoming part of your sailing rather than something you learned from a book.
Fast Boats Make Early Decisions Even More Important
This is particularly noticeable when moving into faster boats.
At 2 knots, ten seconds gives you plenty of time.
At considerably higher speeds, ten seconds can transform a distant boat into an immediate problem.
The faster the boat, the further ahead your thinking needs to move.
That is one reason performance sailing teaches awareness so effectively.
You cannot wait for every situation to become urgent before deciding what to do.
The Best Encounter May Be the One You Avoid
There is another tactical lesson here.
Sometimes the cleverest way of dealing with another boat is never to create the encounter in the first place.
You might tack earlier.
You might cross behind while the gap is enormous.
You might choose the other side of the river.
You might deliberately give yourself more separation before approaching a mark.
Beginners often react to situations.
Experienced racers increasingly anticipate them.
That difference can make sailing both faster and calmer.
Rules, Tactics and Seamanship
When two boats meet, three questions are worth asking.
What do the rules require?
That establishes responsibilities.
What is tactically best?
That helps you race efficiently.
And finally:
What is the safest and most seamanlike decision?
Occasionally those three answers point towards exactly the same manoeuvre.
Sometimes they don't.
That is where judgement becomes important.
The best racing sailors aren't simply people who know the rule book.
They understand the rules well enough to predict what other boats should do, the tactics well enough to exploit opportunities, and seamanship well enough to recognise when insisting on an advantage simply isn't worth the risk.
Because there is a considerable difference between being right and being wise.
And when two boats are converging at speed, I would much rather finish the race discussing a tactical mistake in the clubhouse than discussing which boatyard is going to repair the damage.
Being entitled to sail somewhere doesn't always mean sailing there is sensible.
Knowing the difference is part of becoming a better sailor.
This article is intended as an introduction to racing situations and good seamanship rather than a substitute for the current Racing Rules of Sailing or formal race training.
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