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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 few of the early boats were designed with a deep fin cast iron keel with a bulb. A fiberglass fin keel version was built in the late 1980s and early 1990s. As with the early cast iron fin boats only a few were manufactured. The fin keel hull, deck and cabin are identical to the shoal keel with centerboard boats. Montgomery 17 - swing keel
Other types feature a casing under the boat, which does not take up space but instead has the problem of increased drag. For this reason, it is not uncommon to find boats with a combination of shallow keel and centreboard (e.g. Randmeer). The keel provides the housing for the centreboard, moving it out of the hull, but adds only a small amount ...
The Little Harbor 44 features a molded one-piece fiberglass hull and deck with a gelcoat finish. [11] The rudder is two-part, molded with stainless steel rudder stock and internal framework. The centerboard is two part, with a bronze shoe on the leading edge. The centerboard trunk was molded into the hull, below the cabin sole.
The keel-equipped version of the boat has a draft of 4.0 ft (1.2 m), while the centreboard-equipped version has a draft of 6.67 ft (2.03 m) with the centerboard extended and 2.67 ft (0.81 m) with it retracted, allowing operation in shallow water or ground transportation on a trailer.
The boat has a centerboard that can be raised and lowered according to varying conditions and for ease of transport. When the centerboard is fully extended, the Mutineer 15 will draw a maximum of 4 feet 1 inch (1.24 m) When the centerboard is raised the boat will draw a maximum of 8 inches. The boat displaces a total of 410 pounds. [1] [5]
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 ...
The boat has a draft of 4.92 ft (1.50 m) with the centerboard extended and 1.80 ft (0.55 m) with it retracted, allowing operation in shallow water, or ground transportation on a trailer. [ 1 ] [ 3 ] The boat is normally fitted with a small 3 to 6 hp (2 to 4 kW) outboard motor for docking and maneuvering.