Select Page

Gybing is the sailing manoeuvre used to change a boat’s direction through a following wind. As with the tacking manoeuvre, gybing a sailing boat calls for the crew to work together as a team and is one of the first sailing skills to learn.

When a boat is sailing downwind, with the wind blowing from behind the yacht, it may need to alter course so that the stern goes through the wind. This requires a sailing manoeuvre called a gybe, where the sails move from one side of the boat to the other.

The aim is to turn the stern smoothly through the wind onto the new course in as controlled a manner as possible. This means the boom of the mainsail has to be controlled carefully through the turn and the boat must not be allowed to swing round and turn sideways to the wind, causing it to heel over.

As when tacking, the gybe manoeuvre calls for a well co-ordinated crew and clear instructions from the skipper and helm.

Gybe manoeuvre

The gybe manoeuvre can involve two or three crew members and goes as follows:

  • The skipper or helm decides it is time to gybe and alerts the crew.
  • Helm calls “Ready to gybe!”
  • The mainsheet is pulled in to bring the boom to the centre line.
  • If there is a mainsheet traveller, this is cleated to hold the boom in place.
  • One or two crew members are put in control of each jib sheet winch, depending on the size of the boat and number of crew available.
  • A crew member then puts two turns of the slack or “lazy” jib sheet around the winch (A) on its side of the cockpit and pulls in the slack. Another crew member un-cleats the “working” jib sheet, keeping it tight on the winch (B).
  • The helm turns the boat slowly to allow the wind direction to pass from one side of the stern to the other. Once the turn is complete the helm calls “Gybe-oh!”
  • As the boat turns, the headsail blows from one side of the bow to the other. The crew on the working sheet eases and releases the sheet from winch (B).
  • The crew on winch (A) then pulls in the new working sheet. The winch handle is inserted into the top of the winch, the crew winches in the sheet and the sail is trimmed for the new course.
  • The helm steers the boat onto its new course and the mainsail is let out on the new side.
  • Both sails are then trimmed for the new course.

Tips:

  • It is very important to sheet in the mainsail to the centreline before gybing, to prevent the boom swinging across in a dangerous, uncontrolled manner.
  • All crew should keep their heads well down away from the boom during a gybe in case it swings across unexpectedly.

Boat Improvements

My Boat - practical improvements Author - Mike Rossiter Most boat owners who have had their craft for any length of time will have made what they...

Pre-start engine checks

According to the Royal National Lifeboat Institution (RNLI) almost one third of emergency call outs at sea are caused by mechanical failure. Many engine breakdowns are avoidable. The best way to avoid a breakdown is to carry out pre-start checks before heading out to sea.

Marine engine electrical system

The typical basic electrical system associated with a marine engine includes a dedicated engine starting battery, a starter motor, a charger in the form of an alternator, a solenoid and some engine sensors and instruments.

Passage Planning Advice & Safety for skippers

Passage planning helps you to: • Decide where to go • Calculate how long it will take to get there • Avoid bad weather •...

Understanding your boat’s compass

Article submitted by Mike Rossiter, Certificated Compass Adjuster. Since the magnetic compass was first used by the Chinese...

Sailing Safely at Night – Best Practice

Sailing at night can be a magical experience – the peaceful solitude, starry skies, and gentle lapping of waves create an unforgettable atmosphere. However, nighttime sailing also presents unique challenges and risks that require careful preparation and vigilance. This comprehensive guide will cover essential safety practices to ensure your nocturnal nautical adventures are both enjoyable and secure.

Antifouling for leisure boats – Part 1

Boats that are kept afloat can very quickly become a home for small marine organisms such as barnacles, weed and slime. Applying an antifouling paint to your hull is necessary to protect it from these micro-organisms, as a fouled hull can cause problems and will slow down a boat’s maximum speed considerably if left unchecked.

Boatyard Health and Safety

Boat storage facilities are potentially hazardous environments and it is the responsibility of both boat owners and boatyards to ensure that the...

2023 Rolex Fastnet Race – Part 2

Simon Jollands took part in the 2023 Rolex Fastnet Race. This is the second of his articles on the race aboard Lancelot II, a Beneteau First 40.

Cutless bearing replacement

Cutless bearings can last for many years but if the propeller shaft is out of alignment they will wear through more quickly. If you have noticed a clunking sound when motoring then it could be a worn cutless bearing that is causing the problem.

Understanding marine sealants & adhesives

Sealants, adhesives and adhesive sealantsThere is a bewildering variety of sealants, adhesives and even adhesive sealants available for...

Safe Skipper – crew management tips

Effective crew briefings are a vital part of the good on-board communication that helps everything to run smoothly on a sailing vessel at sea, whether it is cruising or racing.

Electric motors and hybrid systems

In recent years there have been considerable advances with the development of electrically powered propulsion in the leisure marine sector. This includes developments with inboard and outboard electric motors, hybrid systems, lithium-ion battery technology as well as solar, wind and hydro powered generators.

First Aid Afloat – Jellyfish Stings

Jellyfish stings are a common occurrence when boating or swimming in many parts of the world. While most stings are not serious, some can cause...

How to operate a winch

Winches are drum shaped mechanical devices used to handle halyards, sheets and control lines. One of the important crew...

Boat electrics inspection checklist

With the boat ashore, here are some recommendations for carrying out a boat owner electrics inspection. Safety is always paramount so remember to do the checks with the batteries off. Wearing a head torch helps, make notes as you go and only tackle a repair if you are 100% sure you know what you are doing:

How to use tides and currents to your advantage

If you are contemplating a cruise through tidal waters and strong currents, then planning your trip carefully in advance is essential to enable you to take advantage of favourable tides rather than constantly fighting against them.

Fire safety advice at sea from the Marine & Coastguard Agency

Fire safety advice for boaters Top fire safety advice at sea: 1. Fit smoke alarms, carbon monoxide and gas detectors 2. Turn...

Antifouling for leisure boats – Part 2

To prepare for antifouling, as soon as your boat has been lifted out and pressure washed, you need to check all the surfaces of the hull below the waterline, remove any remaining barnacles and check for blisters.

Marine engine oil system maintenance

The regular maintenance of a marine diesel is key to preventing engine failure at sea. This means doing regular checks of the fuel, cooling, electrical and oil systems.

Narrowboating on the Kennet and Avon Canal

A recently cancelled sailing event I was due to take part in left us with a free weekend in the diary. Given that my wife and I were celebrating a bumper wedding anniversary and the weather forecast was for fine weather, we decided to hunt around for a last minute canal holiday.

Cleaning & polishing gelcoat topsides

The gelcoat topsides of a GRP boat can be pampered and restored to their former glory relatively easily when it is ashore. Gelcoat is only a very thin outer layer of the hull, often less than 1mm thick, so you should avoid cleaning it with highly abrasive cleaners, or an-ything that could potentially damage its surface.

Boat surveys

A full boat survey assesses the condition of the hull, mechanical gear and means of propulsion. The survey is carried out with the boat...

ColRegs Rule 14 – Head-on Situation

  ColRegs Rule 14: Head-on Situation (a) When two power-driven vessels are meeting on reciprocal or nearly reciprocal...

Navigation safety: a quick-reference mobile app to learn the ColRegs NavLights and Shapes

 Safety at SeaSafety at sea will always remains a topical and important subject that will no doubt dominate the syllabuses of nautical...