Sailing - Points of Sail

Points of Sail

Further information: Points of sail

The point of sail describes a sailing boat's course in relation to the wind direction.

No sailboat can sail directly into the wind (known as being "in irons"), and for a given boat there is a minimum angle that it can sail relative to the wind; attempting to sail closer than that leads to the sails luffing and the boat will slow down and stop. This "no-go zone" (shown shaded in accompanying figure) is about 45° either side of the true wind for a modern sloop.

There are 5 main points of sail. In order from the edge of the no-go zone (or "irons") to directly downwind they are:

  • close haul (the minimum angle to the wind that the boat and its rig can manage - typically about 45° )
  • close reach (between close hauled and a beam reach)
  • beam reach (approximately 90° to the wind)
  • broad reach (between a beam reach and running)
  • running (close to directly downwind)

The sail trim on a boat is relative to the point of sail one is on: on a beam reach sails are mostly let out, on a run sails are all the way out, and close hauled sails are pulled in very tightly. Two main skills of sailing are trimming the sails correctly for the direction and strength of the wind, and maintaining a course relative to the wind that suits the sails once trimmed.

Read more about this topic:  Sailing

Famous quotes containing the words points of, points and/or sail:

    “If I were in the unenviable position of having to study my work my points of departure would be the “Naught is more real ...” and the “Ubi nihil vales ...” both already in Murphy and neither very rational.”
    —Samuel Beckett (1906–1989)

    “There are good points about all such wars. People forget self. The virtues of magnanimity, courage, patriotism, etc., etc., are called into life. People are more generous, more sympathetic, better, than when engaged in the more selfish pursuits of peace.”
    —Rutherford Birchard Hayes (1822–1893)

    “By this also ye must know that women have dominion over you: do ye not labour and toil, and give and bring all to the woman? Yea, a man taketh his sword, and goeth his way to rob and to steal, to sail upon the sea and upon rivers, and looketh upon a lion, and goeth in the darkness; and when he hath stolen, spoiled, and robbed, he bringeth it to his love.”
    —Apocrypha. Zorobabel, in Esdras I 4:22-24.