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A polar diagram, or polar plot, is a graph that shows a sailboat's potential speed over a range of wind speeds and relative wind angles. [1] It normally consists of the right side of a line chart with the radius representing the yacht speed and the angle representing the wind direction blowing from top to bottom.
In contrast to a simple light switch, which is a single pole, single throw (SPST) switch, multiway switching uses switches with one or more additional contacts and two or more wires are run between the switches. When the load is controlled from only two points, single pole, double throw (SPDT) switches are used.
Guy (red arrow), controlling the spinnaker pole. A guy (probably from Dutch gei, "brail") is a line attached to and intended to control the end of a spar on a sailboat. [1] On a modern sloop-rigged sailboat with a symmetric spinnaker, the spinnaker pole is the spar most commonly controlled by one or more guys.
For example, a "2-pole" switch has two separate, parallel sets of contacts that open and close in unison via the same mechanism. The number of "throws" is the number of separate wiring path choices other than "open" that the switch can adopt for each pole. A single-throw switch has one pair of contacts that can either be closed or open.
[2] Spinnaker – Some sailboats use a symmetrical spinnaker—a three-sided, parachute-like sail—off the wind. The windward lower corner of a spinnaker is attached to a horizontal pole, coming from the mast to the lower corner of the sail—controlled by a line, called a guy—and the other lower corner is attached to a line that acts as a ...
The boat has a draft of 2.67 ft (0.81 m) with the standard wing keel. [1] [3] The boat is normally fitted with a small 3 to 6 hp (2 to 4 kW) outboard motor for docking and maneuvering. [1] [3] The design has sleeping accommodation for four people, with a double "V"-berth in the bow cabin and an aft cabin with a double berth on the starboard ...
It is then passed through a cringle in the luff of the sail near the foot but above the tack, and then led down on the other side to a fitting on the mast, boom or on deck. The tension in the luff of the sail is adjusted using a combination of the halyard and the cunningham (where fitted). The primary advantage of adjusting the cunningham is ...
1. (ship's boat) A small, light boat propelled by oars or a sail, used as a tender to larger vessels during the Age of Sail. 2. (full-rigged pinnace) A small "race built" galleon, square-rigged with either two or three masts. 3. In modern usage, any small boat other than a launch or lifeboat associated with a larger vessel. pintle