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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 Apollo 16 is a recreational sailboat, built predominantly of fiberglass.It has a fractional sloop rig with aluminum spars. The hull features a raked stem, a vertical transom, a transom-hung, kick-up rudder controlled by a tiller and a retractable, kick-up centerboard.
The boat has a draft of 4.50 ft (1.37 m) with the standard keel and 3.5 ft (1.1 m) with the optional shoal draft keel. [1] The total sail area on boats built prior to 2005 is 283.00 sq ft (26.292 m 2) and after that date 338.00 sq ft (31.401 m 2). [1] The boat is normally fitted with a small outboard motor for docking
[citation needed] If there is no wind and an outboard motor is being used, lifting the daggerboards will ensure the least drag. [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 cockpit, the decks and the cabin trunk roof are all made from teak. Ventilation is provided by three pairs of dorade vents, two hatches and six opening bronze ports. Sheet and halyard winches are located on the cockpit coaming and on the mast. [3] [8] The design has a Portsmouth Yardstick racing average handicap of 95.0. [3]
The boat was built by Whitby Boat Works in Canada, who completed more than 700 examples between 1962 and 1987, but it is now out of production. [1] [4] Construction was changed during the production run. Early models have a laminated wood mast brace and no liner, with a masonite-cored deck that drains overboard via the toe rail. Later models ...
The boat was at one time supported by a class club, the ETAP Owners Association. [8]In a 2009 Yachting Monthly review stated, "from her short coachroof and acres of flush, TBS-covered decks and her custom deck gear, to her stainless steel and white oak-veneered interior, this Harlé Mortain model from 1993 was strikingly different from her contemporaries.
These hulls generally have one or more chines and the method is called Ply on Frame construction. [7] A subdivision of the sheet plywood boat building method is known as the stitch-and-glue method, [8] where pre-shaped panels of plywood are drawn together then edge glued and reinforced with fibreglass without the use of a frame. [9]