How to Heave To On A Sailboat

If you’re wondering how to heave to on your sailboat, and why you might want to, then you’re reading the right article!

Heaving to is an important safety technique that every sailor should know, and practice regularly. But do you know how to heave to, and under what conditions might need to use this manoeuvre?

In this article we take a deep dive into the practice of heaving to – exploring how to enter a hove-to state on different kinds of sailing vessels, when and why to use this technique, and taking a look at some historical examples of instances where heaving to has saved lives.

You can trust us to tell you everything you need to know about the heave-to manoeuvre, because we are seasoned sailors with RYA-accredited qualifications and thousands and thousands of miles under the keel, hard-won in every sea state imaginable. We have also heaved to quite a few times ourselves!

Before we get into the mechanics of how to heave to, let’s take a quick look at what this technique is and aims to achieve.

Table of Contents

What is heaving to?

Heaving to is a manoeuvre that sailors can use to slow their vessel down to a near-crawl, while fixing the helm and sail positions so that the crew no longer need to actively steer the boat or manage the sails.

When performed correctly it will also place the bow of the boat at angle up into the waves, allowing her to ride them smoothly and producing maximum comfort for all aboard. It should also minimise leeway.

As we’ll see in a moment, the exact technique to achieve these outcomes varies by the kind of sailing boat you have – principally, by her sail plan.

You may occasionally hear power-boaters use the term “heave to” to simply mean throttle back and come to rest. In this article, we’ll mostly be talking about the technique of heaving to under sail instead.

Why heave to in sailing?

Heaving to is an important safety manoeuvre commonly used to sit out heavy weather, allowing the crew to go below, take a rest and get warm and dry. A correctly hove-to boat can sit out most kinds of weather, just bobbing along on the top of it.

Heaving to can also be used as a low-effort way to simply wait in position for a time, such as when waiting for tides to turn, a squall to blow past ahead, or for a bridge to open.

Some sailors have been known to heave to just to have a cup of tea and a biscuit!

Another application is stopping the boat in a hurry while under sail. For this reason, it’s used in some man-overboard recovery techniques. Naturally, you can dump the sheets to achieve a similar outcome, but that doesn’t apply reverse thrust in the way that backing a sail does.

When it comes to MOB scenarios you could heave to in order to stop the boat rapidly, then engage the engine, throw the sails down and proceed to recover the MOB under power.

Or, if you intend to recover the MOB under sail, you can approach them while hove-to in order to drift up to them slowly.

Not everyone agrees that heaving to is the correct way to initiate an MOB; a lot of sailors advocate for letting the sheets fly instead, forgetting about the flapping canvas and getting the motor on as soon as possible.

How does heaving to work?

You’ll see a lot of complicated explanations online for how heaving to actually works. We think most of them overcomplicate things, and generally prefer to explain it like this:

Heaving to works by backing the headsail so that it fights the mainsail. If you get it right the two sails cancel each other out and the boat stays more or less static, despite being powered up.

That’s not quite the whole story, but it’s by far the easiest way to visualise what’s happening on a hove-to boat.

To initiate a heave-to, you proceed as though you are going to tack the boat, but do not tack the headsail sheets or adjust the headsail in any way. The main, of course, will self-tack, but the headsail (or storm sail) needs to be blown backwards through the triangle formed by the mast and the forestay, and end up backed – with the belly facing inboard – rather than outboard as it usually would.

Still with us? If you’re lost, think about it like this: you are literally just performing a normal tack without tacking the headsail sheets. At the end of the manoeuvre, you will have a normal, correctly tacked main, but a headsail that is backed and still sheeted as though you were still on the opposite tack.

The result of this is that the mainsail powers the boat forwards normally, but the headsail is backed and resisting it, pushing it backwards; so the boat achieves a state of near-equilibrium and simply drifts.

You should only be travelling at around a knot, but the boat is still powered-up and stiff rather than at the mercy of the waves, and therefore orders of magnitude more comfortable than if you had put the sails away.

That’s the flavour of it: now let’s look at exactly how to heave to on a sailboat, step-by-step.

How to heave to in a sailboat

diagram of heaving to

When heaving to, we’re always trying to achieve the same thing: to get the headsail and the mainsail balancing each other out, so that the boat is still powered-up and comfortable, but no longer making any headway.

Generally speaking, we achieve that either by tacking a sail, but not the boat; or the other way around – by tacking the boat, but not one of the sails. Either way, we end up with one sail fighting the other, and the boat comes to a stop.

The exact procedure to enter a hove-to state is different for different kinds of sailing vessel and rig, so let’s start with the simplest scenario: you are a sloop, with one mast, a mainsail and a jib.

How to heave to in a sloop

There are two ways for a single-masted sailing vessel such as a sloop to begin a heave to. For both of them, you want to be travelling upwind.

The first way is to literally heave the jib over to the “wrong” side of the boat, i.e. the windward side. This means releasing the leeward sheet and manually hauling the sail through the gap between the forestay and mast using the windward sheet.

It sounds complicated when you spell it out like that, but it’s literally the same set of steps you would follow to tack the headsail, just like normal- except you don’t tack the boat.

The jib moves, the wind doesn’t, so the jib ends the manoeuvre backed and pushing backward against the main; which is still on the correct tack, powered up and propelling the boat forwards.

The alternative is to tack the boat but not the jib.

In other words, the helmsman swings the wheel to wind; the bow of the boat tacks as you would expect, but at the point the crew would normally scramble to release one jib sheet and tension the other to tack the headsail (the moment your helmsman booms “lee ho!”, if you’re that sort of boat) – you instead do nothing.

The jib ends up backed again, because nobody tacked it. The main self-tacks and re-powers on the new tack, and the two still end up counteracting each other. Personally, we feel this is much easier, as you don’t have to manually heave the jib back through the gap between the forestay and mast – you just turn the helm.

Tacking the boat also slows you down a lot right away, which is one of the goals of heaving to in the first place.

Whichever of these two methods you use, the next step is to turn the wheel to windward – as though you are trying to tack back again. Of course, you will not have the speed or drive to do this with a backed headsail.

The purpose of turning the helm to wind like this is threefold:

One, we need to stay head-to-wind to keep the headsail backed. If we bear away, the headsail will fill and we will exit our heave-to.

Two, heaving to doesn’t truly stop the boat. You will still be making a knot or two through the water. This is actually desirable, because you will also be making leeway. By pointing upwind, we aim to use that knot of speed to counteract the leeway and remain more or less stationary over ground. 

Thirdly, we want the bow of the boat to be facing up into the waves, at an angle, because that’s a lot more comfortable for the crew than taking them on the beam.

Start by turning the wheel to wind by hand and finding the point at which the boat settles down and maintains a steady course to wind and wave. You can lash the wheel there if you desire, and then you’re free to go below.

If she doesn’t want to settle down, or you’re making too much headway over ground, you may need to ease the sheets or even take a reef in the main.

It’s important to try heaving to in different conditions so that you know how your particular vessel performs, before you need to perform the manoeuvre in anger. Old, heavy-displacement, full-keel boats are often much easier to heave to than modern fin-keelers.

How to heave to on a cutter or Solent rig

Cutters and Solent-rigged sailboats have a single mast, like a sloop, but they have two headsails. The addition of an extra headsail makes heaving to a little more difficult.

The primary headsail on a cutter is usually a large genoa that attaches at the masthead and runs to the bow, or often to a bowsprit enabling a larger sail. This is usually the sail we will be backing in order to heave to.

The second headsail on a cutter is usually called a staysail, and attaches about a quarter of the way down from the masthead. This second, smaller headsail is often set up to be self-tacking.

When you want to tack a sloop, you only need to pull the headsail through the very large gap between the forestay and mast. When you want to tack the genoa on a cutter, you have to fit that extremely large sail through the much smaller gap between the outer and inner stays.

The upshot of all this is that it’s harder to back the sail on a cutter. You can either drag it laboriously through the gap using the winch, or someone can go forward and manhandle it along – but that’s not always the safest in heavy weather.

When it comes to a Solent rig, it’s usually much easier. A Solent does have two headsails, but the outer one is usually a cruising chute and the inner one is the jib. As such, to heave to on a Solent-rigged boat, you perform the exact same steps as on a sloop.  

How to heave to on a ketch or a yawl

Twin-masted sailboats, such as ketches, can also heave to.

These vessels have a main mast and a second, smaller mast called a mizzen, and can fly sails from both masts. The difference between a ketch and a yawl is the size and position of this aft mast.

Most ketches and yawls fly a headsail, a mainsail, and then a smaller mainsail from the mizzenmast called a mizzen sail. In other words, only the main mast has a headsail.

You do get mizzen staysails that sit between the main and mizzen masts but they’re rare. To all intents and purposes, we’re dealing with three sails here, and two of them – the main and mizzen – are self-tacking.

The principle to heave to on a ketch or yawl is similar to a sloop: we’re still looking to balance the sails, by backing the headsail and leading the main powered up.

Because the mizzen behaves like a small main, we treat it like one and let it self-tack along with the main. As a result, in our hove-to position, we have a backed jib, and a main and mizzen flying regularly.

We now turn the wheel to windward and use the tension on the mizzen sheet to adjust how high or low we point into the wind and waves. We can also use the tension on the main sheet to influence how much headway we make.

How to heave to on a catamaran

Most catamarans actually can’t heave to. When a monohull heaves to, part of what makes it work is the action of the sails pivoting around the keel – and the keel provides drag and dimension stability that reduce leeway.

Catamarans don’t have keels. At least, not deep keels with heavy ballast bulbs. They can have fixed, stubby little mini-keels, or long retractable daggerboards – but either way, their keels act like the fins on a surfboard rather than ballast. They also have two of them – they just don’t behave in the same way as monohulls.

Cats do have a few heave-to-adjacent manoeuvres that they can turn to in a storm, though. The first is to deeply reef the main, drop the traveller all the way to leeward, and then pull the mainsheet in hard. Lash the helm so that the cat is on a safe, close-hauled course. If you get it right, you should be drifting sideways calmly at about half a knot, with your bows into the waves at an angle.

This is sometimes called “parking” a cat. Performance cats with daggerboards, when performing this manoeuvre, should leave both boards about halfway down.

Performance cats also have the option to pull the boards right up and skate freely over the surface of the waves; either with or without sail power.

Performance cats are fast, so as long as there’s enough room to run, they also have the option to turn down wind and match the cadence of the wave train – creating a smooth ride with minimal wave impacts. They also ride higher on the waves as they accelerate, effectively creating more reserve buoyancy.

When sailing in heavy weather in a catamaran, however, it’s important to remember that cats don’t heel and it can be harder to tell when one is overpowered. They also don’t spill wind and self-compensate in the way that a heeling monohull does, so it’s wise to reef early and often.

Heaving to as a storm tactic

Heaving to as a storm tactic exploded in popularity, particularly in the RYA syllabus, after the 1979 Fastnet disaster.

The 605-mile race is held once every two years off the coast of the UK. In 1979, it was struck by a terrible storm; more than a hundred boats capsized and 19 people died.

Hundreds more would certainly have been lost if not for the brave actions of an unbelievable, impromptu volunteer search and rescue operation – the largest ever in peacetime – consisting of more than 4,000 members of the public and pleasure boat owners.

It was later discovered that every single boat that had heaved to had emerged from the storm completely unscathed. Every boat that capsized or been knocked down had either attempted to carry on sailing, or had used a different technique called “laying ahull”.

In the aftermath of these events, the RYA took it upon itself to disseminate the information that heaving to saves lives, and they continue to recommend it as a storm tactic today.

As noted earlier in the article, not all boats actually can heave to, but if your boat is capable, it’s certainly a valuable trick to keep up your sleeve. It’s a good idea to read up on how sailing your sailboat in a storm just in case you need to employ other tactics.

Conclusion

In conclusion, heaving to is an important safety technique that every monohull sailor should be aware of. At a basic level, it provides you with a window of calm and safety to gather your thoughts and take some refreshments. At the extreme end of the scale, it could save your life in a storm one day.

It’s important to practise heaving to before you need to use the technique for real, because every boat performs a little differently. This goes double if you intend to incorporate heaving to into your man overboard protocol.

Heaving to isn’t a particularly difficult technique, but you do need to try it out a couple of times in order to get comfortable with the sail and trim your particular vessel requires to settle down into a nicely hove-to state.

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