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A fore and aft, pivoting centreboard can also be used to move the centre of lateral resistance aft to match a change in sail plan, such as furling or dropping the jib. A retracting centreboard is more complex than a fixed keel, and most take up space inside the hull of the boat that could otherwise be used for passenger accommodation. Other ...
The Core Sound 20 Mark 3 is an American sailboat that was designed by B&B Yacht Designs for cruising and first built in 2014. The boat is supplied as a series of kits and plans for amateur construction. [1] [2] The Core Sound 20 Mark 3 is a development of the Core Sound 20 and is named for the North Carolinian body of water. [2]
A sail plan is a drawing of a sailing craft, viewed from the side, depicting its sails, the spars that carry them and some of the rigging that supports the rig. [1] By extension, "sail plan" describes the arrangement of sails on a craft. [2] [3] A sailing craft may be waterborne (a ship or boat), an iceboat, or a sail-powered land vehicle.
In a 1994 review Richard Sherwood wrote, "The Irwin 41 was designed as a blue-water cruiser. The hull is moderate displacement, the keel is long, and the ballast/displacement ratio is 32 percent. Optional hulls are a centerboard/keel and a deep keel. The sail plan is balanced and designed to be handled by two people." [3]
When a small sailboat flips on its side, the keel can also be used to right the boat. Standing on the keel gives the sailor additional leverage to roll the hull upright. The centerboard, daggerboard, or bilgeboard can be used as a platform upon which to stand, providing increased leverage, in the event the dinghy overturns via a capsize or turtle.
The Dovekie is a recreational sailboat, built predominantly of fiberglass over an Airex foam core. It has a catboat rig with an aft-raked mast and a wishbone boom.The hull is flat-bottomed, with a raked stem, a canoe stern, a spade-type rudder controlled by a tiller and dual retractable leeboards, with a retractable bow centerboard.
The Thunderbird class sailboat was designed in 1958 by Seattle Washington naval architect Ben Seaborn, [1] in response to a request from the Douglas Fir Plywood Association (now APA - The Engineered Wood Association) of Tacoma, Washington for design proposals for a sailboat that would "... be both a racing and cruising boat; provide sleeping accommodations for four crew; be capable of being ...
This model, produced from 1988 to 1994, was based on the 37/40 R hull, using the same molds for hull and deck, [18] but fitted out with a full cruising interior. The interior layout in the C&C 37+ series was a significant departure from the standard C&C interior layout dating back to 1969 and the C&C 35 Mk.1.