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The two-chine hull (B), with a flat bottom and nearly vertical sides, was the first hard-chine design to achieve widespread use. This design provides far more stability than the single-chine hull, with minimum draft and a large cargo capacity. These characteristics make the two-chine hull popular for punts, barges, and scows.
The multi-chine hull approximates a curved hull form. It has less drag than a flat-bottom boat. Multi chines are more complex to build but produce a more seaworthy hull form. They are usually displacement hulls. V or arc-bottom chine boats have a V shape between 6° and 23°. This is called the deadrise angle. The flatter shape of a 6-degree ...
The Gull Spirit, introduced in the late 1990s by Anglo Marine Services, was a major redesign in GRP: principally a return to a double-chine hull similar to those used on the original wooden boats. [3] The Spirit's interior was in many respects cloned from the larger Wanderer sailing dinghy (another Ian Proctor design). [3]
Chine: the part of a hull at the turn of the bilge. It may be "hard" (i.e. sharply angled) or "soft" (gradually contoured). A chine made of a single timber is known as a chine log. Cleat: a fitting designed to tie off lines. The most common form has a central anchor point and opposing protrusions for taking turns of a line. Also cam and jam cleats.
Portsmouth handicap numbers, however, place the Laser slightly faster. With its hard chine hull, the Super Sunfish is the more stable boat, so it is a tradeoff between the two designs. The Super Sunfish was offered as a complete package and as a kit to retrofit existing lateen rigged Sunfish.
catamaran = two symmetric hulls; proa = two asymmetric hulls, reverse-shunting (interchangeable bow/stern) trimaran = three hulls; quadrimaran = four hulls;
The hull is a scow design, with a flat bottom, a reverse sheer and a hard hull chine. The hull features a vertical transom, a transom-hung rudder controlled by a tiller and a retractable steel or aluminum centerboard. It displaces 500 lb (227 kg). [1] [3]
Allied Coastal Forces of World War Two, Volume I : Fairmile designs and US Submarine Chasers - by John Lambert and Al Ross - 1990, ISBN 978-0-85177-519-7; War at Sea - South African Maritime Operations during World War II : CJ Harris - 1991; Hudson, G. M. (2001). "Question 52/00: US Army Fairmile "B" Molor Launches". Warship International.