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Tacking or coming about is a sailing maneuver by which a sailing craft (sailing vessel, ice boat, or land yacht), whose next destination is into the wind, turns its bow toward and through the wind so that the direction from which the wind blows changes from one side of the boat to the other, allowing progress in the desired direction. [1]
If the destination is upwind but the sailboat goes fastest heading away from this direction, this poses a significant problem: how to choose tack headings with the best tradeoff between maximimizing speed and minimizing distance. The ability to define an efficient tacking route is an important issue in sailboat racing, and for recreational sailing.
A tack is the windward side of a sailing craft (side from which the wind is coming while under way)—the starboard or port tack. Generally, a craft is on a starboard tack if the wind is coming over the starboard (right) side with sails on port (left) side. Similarly, a craft is on a port tack if the wind is coming over the port (left).
Alternatively, the vessel can simply be turned normally to tack through the wind, without freeing the jibsheet. [5] [1] [11] The mainsail should self-tack onto the other side, but the jib is held aback. Finally the rudder is put the other way, as if trying to tack back again. Without the drive of the jib, she cannot do this and will stop hove to.
The quick turn is essentially a figure eight. On a sailboat it consists of the following steps: Change course to a beam reach and hold for 15 seconds; Head into the wind and tack, leave the jib fluttering; Veer off until the boat is at a broad reach; Turn upwind until the vessel is pointing at the victim; at this point the vessel should be on a ...
On larger or older sailing vessels, lifts known as "quarter-lifts" run to the middle of the boom. When the sail is raised, the quarter-lift on the leeward side must be slack, otherwise it will cut into the sail and cause it to lose its shape. When tacking, the new windward lift must be tightened and the new leeward lift let out. [citation needed]
Sailing performance with a standing lug relies on the right amount of luff tension. An essential component of this rig is the tack tackle, a purchase with which luff tension is adjusted for various points of sail. [4]: 34 The balanced (or balance) lug has a boom that projects in front of the mast roughly the same distance as the yard.
[12] The sailboat now shuttles tourists to the Monkey Mia resort area off Western Australia. Hot Buoys is a 65-ft long cruising trimaran with a 40-ft beam. It was designed by Jay Kantola, and built by Richard and Kris Barrie of California. In 2010 it was converted by Philip Maise to an aft-mast rig with a self-tacking crab-claw sail. Video in ...