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AC - DG - HL - MR - S - TZ
 
Tack of the sail
  Side of the sail in which the wind is blowing.
 
Tailwind
  When the boat is going in the same direction as the wind.
 
Taking the strain on a shroud
  Making taut a shroud.
 
Thrust
  The work of the sails on drag.
 
To be on the port tack
  When the wind comes from the left.
 
To beat up to windward
  Pull on a clew to bring the sail back into the axis of the yacht.
 
To belly
  When a sail is not reefed in enough and when sailing close-hauled or when the yacht is sailing into the wind.
 
To brace
  Haul in the spinnaker to direct the boom.
 
To come around
  When you’re talking about the wind, it means that it changes direction to become more favourable according to your route. The boat then changes direction or tack. Opposite of to become less favourable.
 
To draw or to fill
  Is said of a well-reefed sail.
 
To fend off
  A collision or to prepare for a manoeuvre.
 
To furl
  To fold and tie up a sail on the spar.
 
To get under sail
  Carry out the necessary manoeuvres to set off.
 
To go astern
  Move the boat backwards.
 
To haul on
  Pull a rope towards you (haul on the clew of the mainsails when heaving to).
 
To haul taut
  To tighten a line, opposite of slacken off.
 
To heave to
  Change tack by jibing; a delicate manoeuvre because the mainsail can suddenly come around and the spinnaker can get tangled up.
 
To heel
  To lean at an angle to the vertical called the list.
 
To lower
  To bring down an object or a sail by means of a rope. Opposite of to hoist.
 
To luff
  To go from one tack to another by bringing the boat nearer to the wind. Opposite of to pay off.
 
To pay off
  Change speed by moving away from the direction of the wind. Opposite of to luff.
 
To pinch
  Is said of the wind when a boat is held back by a headwind making it sail closer to the wind.
 
To rig
  Put in place the rigging from the mast to the sail and slide into a rail.
 
To sail off the wind
  (see sailing trim)
 
To stem
  compensate by your own speed the current.
 
To swing at anchor
  To turn around one’s moorings. The distance from the centre of the circle to the stern of the boat is called the swinging radius.
 
To warp
  Move a boat by towing rope.
 
Trim
  The fore and aft position of the hull.
 
Turbulent
  Discharge of a fluid forming eddies.
 
Vane
  Arrow which swivels to point in the direction of the wind.
 
Watch
  Time when the crew takes turns in work and rest. We talk about navigation watches, helm watches and rest watches.
 
Weather charts or Grib charts
  These show the force and direction of the wind over several days and at several times a day, and are used among other things, for entering data into the computer to programme your course.
 
Veer
  To go from one tack to another.
 
Winch
  Wire-strainer used to make taut a shroud. It uses a system of two nuts with opposite threads.
 
Winch
  Winding mechanism used in manoeuvres allowing the multiplying of the force used to haul in the sails.
 
Windage
  Surface of the boat exposed to the wind, which makes it drift.
 
Windlass
  Winch often fixed to the chocks, which allows the anchor to be dropped electrically.
 
Wing mast
  It is the mast shaped like the wing of an aircraft. It can be moved according to the direction of the wind.
 
Yaw
  The boat in the wind comes around and capsizes.
 
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