The Dolphin 17 is an American trailerable

sailboat A sailboat or sailing boat is a boat propelled partly or entirely by sails and is smaller than a sailing ship. Distinctions in what constitutes a sailing boat and ship vary by region and maritime culture. Types Although sailboat terminology ...

that was designed by Glenn Corcoran and Murray Corcoran and first built in 1970.Sherwood, Richard M.: ''A Field Guide to Sailboats of North America, Second Edition'', pages 80-81.

Houghton Mifflin Company Houghton Mifflin Harcourt (; HMH) is an American publisher of textbooks, instructional technology materials, assessments, reference works, and fiction and non-fiction for both young readers and adults. The company is based in the Boston Financ ...

, 1994.

Production

The design was initially built by Universal Plastic Products, first in

Houston, Texas Houston (; ) is the most populous city in Texas, the most populous city in the Southern United States, the fourth-most populous city in the United States, and the sixth-most populous city in North America, with a population of 2,304,580 in ...

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

and later in

Coffeyville, Kansas Coffeyville is a city in southeastern Montgomery County, Kansas, Montgomery County, Kansas, United States, located along the Verdigris River in the state's Southeast Kansas, southeastern region. As of the 2020 United States census, 2020 census, ...

when the company relocated there. It was then built by Silverline Boats in

Moorhead, Minnesota Moorhead () is a city in and county seat of Clay County, Minnesota, United States, on the banks of the Red River of the North. Located in the Red River Valley, an extremely fertile and active agricultural region, Moorhead is also home to several ...

, although that company closed in 1980 and the design is now out of production. A total of 740 examples of the type were completed.

Design

The Dolphin 17 is a recreational

, built predominantly of

fiberglass Fiberglass (American English) or fibreglass (Commonwealth English) is a common type of fiber-reinforced plastic using glass fiber. The fibers may be randomly arranged, flattened into a sheet called a chopped strand mat, or woven into glass cloth ...

, with wood trim. It has a

masthead sloop A masthead rig on a sailing vessel consists of a forestay and backstay both attached at the top of the mast. The Bermuda rig can be split into two groups: the masthead rig and the fractional rig. The masthead rig has larger and more headsails, a ...

rig, including a

backstay A backstay is a piece of standing rigging on a sailing vessel that runs from the mast to either its transom or rear quarter, counteracting the forestay and jib. It is an important sail trim control and has a direct effect on the shape of the main ...

aluminum Aluminium (aluminum in American and Canadian English) is a chemical element with the symbol Al and atomic number 13. Aluminium has a density lower than those of other common metals, at approximately one third that of steel. It has ...

spars, a spooned

raked stem The stem is the most forward part of a boat or ship's bow and is an extension of the keel itself. It is often found on wooden boats or ships, but not exclusively. Description The stem is the curved edge stretching from the keel below, up to ...

, a vertical

transom Transom may refer to: * Transom (architecture), a bar of wood or stone across the top of a door or window, or the window above such a bar * Transom (nautical), that part of the stern of a vessel where the two sides of its hull meet * Operation Tran ...

, a transom-hung, kick-up fiberglass

rudder A rudder is a primary control surface used to steer a ship, boat, submarine, hovercraft, aircraft, or other vehicle that moves through a fluid medium (generally aircraft, air or watercraft, water). On an aircraft the rudder is used primarily to ...

controlled by a

tiller A tiller or till is a lever used to steer a vehicle. The mechanism is primarily used in watercraft, where it is attached to an outboard motor, rudder post or stock to provide leverage in the form of torque for the helmsman to turn the rudder. ...

with an extension and a retractable fiberglass

centerboard A centreboard or centerboard (US) is a retractable hull appendage which pivots out of a slot in the hull of a sailboat, known as a ''centreboard trunk'' (UK) or ''centerboard case'' (US). The retractability allows the centreboard to be raised t ...

. Unusually, the

jib A jib is a triangular sail that sets ahead of the foremast of a sailing vessel. Its tack is fixed to the bowsprit, to the bows, or to the deck between the bowsprit and the foremost mast. Jibs and spinnakers are the two main types of headsail ...

is not mounted to the

forestay On a sailing vessel, a forestay, sometimes just called a stay, is a piece of standing rigging which keeps a mast from falling backwards. It is attached either at the very top of the mast, or in fractional rigs between about 1/8 and 1/4 from the t ...

. The boat has a

draft Draft, The Draft, or Draught may refer to: Watercraft dimensions * Draft (hull), the distance from waterline to keel of a vessel * Draft (sail), degree of curvature in a sail * Air draft, distance from waterline to the highest point on a vessel ...

of with the centerboard extended and with it retracted, allowing beaching or ground transportation on a trailer or car roof rack. For sailing the design is equipped with a self-bailing cockpit, a

mainsheet traveler A traveller is a part of the rigging of a boat or ship that provides a moving attachment point for a rope, sail or yard to a fixed part of the vessel. It may take the form of anything from a simple ring on a metal bar or a spar to, especially in a ...

and a

boom vang A boom vang (US) or kicking strap (UK) (often shortened to "vang" or "kicker") is a line or piston system on a sailboat used to exert downward force on the boom and thus control the shape of the sail. The Collins English Dictionary defines it as ...

. There are three stowage lockers fitted, two on either side and one in the stern of the boat. The design has a

Portsmouth Yardstick The Portsmouth Yardstick (PY) or Portsmouth handicap scheme is a term used for a number of related systems of empirical handicapping used primarily in small sailboat racing. The handicap is applied to the time taken to sail any course, and the han ...

racing average handicap of 97.8 and is normally raced with a crew of two

sailor A sailor, seaman, mariner, or seafarer is a person who works aboard a watercraft as part of its crew, and may work in any one of a number of different fields that are related to the operation and maintenance of a ship. The profession of the s ...

Variants

;Dolphin 17 :This open boat with a foredeck model displaces and carries of ballast. ;Dolphin 17C :This model is equipped with a

cuddy cabin A cuddy is a small room or cupboard, particularly on a boat. Sometimes a cuddy refers to a small but cosy hut. The origin of the term is not clear. Cuddy was in use in colonial America as early as 1655. The term may derive from the Dutch ''kaj ...

with a single window per side and displaces and carries of ballast.

Operational history

In a 1994 review Richard Sherwood wrote, "in addition to the open design, there is a cabin model available. As might be expected, it is slightly heavier and has a reduced sail area. Capacity in either model is six adults; the cabin model sleeps two. The Dolphin 17 has covered storage on both sides of the mast, as well as aft storage."

References

{{Trailer sailers and Trailer yachts worldwide Trailer sailers 1980s sailboat type designs Two-person sailboats Sailboat type designs by Glenn Corcoran Sailboat type designs by Murray Corcoran Sailboat types built by Silverline Boats Sailboat types built by Universal Plastic Products

Production

Design

Variants

Operational history

See also

References