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The spinnaker pole is rigged to run from the base of the mast, [1] where there is a special fitting for attaching one end of the pole, out to windward over the side of the boat. There, one of the control lines of whichever sail it is to be used with is run through a fitting on the other end of the spinnaker pole. This allows for more precise ...
Polar diagram comparing the speeds and carrying angles of symmetrical with asymmetrical spinnakers when sailing Two sailboats flying asymmetrical spinnakers beam reaching in light wind On cruising sailboats, a modestly sized asymmetrical spinnaker can be tacked to a centerline bow pulpit, anchor roller or a furled headsail, and can be known by ...
A "4-way" (intermediate) switch is a purpose built double pole, double throw (DPDT) switch, internally wired in manufacture to reverse the connections between the input and output and having only four external terminals. This switch has two pairs of "traveler" terminals that it connects either straight through, or crossed over (transposed, or ...
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 ...
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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.