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Flat-Edged Rectangular Sun Shade Sail This durable and easy-to-install shade sail comes in a slew of sizes — too many for us to even count — all the way down to 4 x 5 feet.
Standing rigging comprises the fixed lines, wires, or rods, which support each mast or bowsprit on a sailing vessel and reinforce those spars against wind loads transferred from the sails. This term is used in contrast to running rigging, which represents the moveable elements of rigging which adjust the position and shape of the sails. [1]
The lever is let off for down wind sailing, so the main sail becomes full. Alternatively the outhaul tail can be attached to a block and tackle system so that it can be adjusted to many positions. [1] Jib Fairleads, which determine the sheeting angle, depth of the sail, height of the clew, leach tension and other sail trim variables. [5]
An optional adjustable tack-line can be eased to allow the tack to lift, enabling the sail to also lift and its shoulders to rotate for deeper downwind angles. Depending on the design and size of the boat, sail and position of the tack, asymmetrical spinnaker sheets may be led to pass between the spinnaker and the headstay or, alternatively ...
Gaff rig [1] is a sailing rig (configuration of sails, mast and stays) in which the sail is four-cornered, fore-and-aft rigged, controlled at its peak and, usually, its entire head by a spar (pole) called the gaff. Because of the size and shape of the sail, a gaff rig will have running backstays rather than permanent backstays.
In navigation the instrument is also called a cross-staff and was used to determine angles, for instance the angle between the horizon and Polaris or the sun to determine a vessel's latitude, or the angle between the top and bottom of an object to determine the distance to said object if its height is known, or the height of the object if its distance is known, or the horizontal angle between ...
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