Tech Dinghy
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The Tech Dinghy is an American
sailing dinghy Dinghy sailing is the activity of sailing small boats by using five essential controls: * the sails * the foils (i.e. the daggerboard or centreboard and rudder and sometimes lifting foils as found on the Moth) * the trim (forward/rear angle o ...
that was designed by George Owen, a professor at
Massachusetts Institute of Technology The Massachusetts Institute of Technology (MIT) is a private land-grant research university in Cambridge, Massachusetts. Established in 1861, MIT has played a key role in the development of modern technology and science, and is one of the ...
(MIT), as a one-design racer and for
sail training From its modern interpretations to its antecedents when maritime nations would send young naval officer candidates to sea (e.g., see Outward Bound), sail training provides an unconventional and effective way of building many useful skills on and ...
. It was first built in 1935.Sherwood, Richard M.: ''A Field Guide to Sailboats of North America, Second Edition'', pages 20-21.
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.
The Tech Dinghy design was later developed into the Intercollegiate dinghy by
Paceship Yachts Paceship Yachts Limited was a Canada, Canadian, and later United States, American, boat builder originally based in Mahone Bay, Nova Scotia. The company was founded in 1962 and specialized in the design and manufacture of fiberglass sailboats. ...
.


Production

George Owen was a professor at MIT's Department of Naval Architecture and Marine Engineering between 1915 and 1941, designing more than 200 sailing boats and commercial ships. He was also a competitive
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 ...
and conceived the Tech Dinghy for student competitive sailing at MIT in the
Charles River The Charles River ( Massachusett: ''Quinobequin)'' (sometimes called the River Charles or simply the Charles) is an river in eastern Massachusetts. It flows northeast from Hopkinton to Boston along a highly meandering route, that doubles b ...
, which is adjacent to the MIT campus. The design was first constructed from wood by
Herreshoff Manufacturing Herreshoff may refer to: * Herreshoff (surname), a German surname * Herreshoff (automobile), any of three models of automobile built by the U.S. manufacturer Herreshoff Motor Company, 1909–14 * ''Herreshoff Bull's Eye'' * Herreshoff Castle, an un ...
in the
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 ...
, starting in 1935. The design was next built by the Beetle Boat Co in
New Bedford, Massachusetts New Bedford (Massachusett language, Massachusett: ) is a city in Bristol County, Massachusetts, Bristol County, Massachusetts. It is located on the Acushnet River in what is known as the South Coast (Massachusetts), South Coast region. Up throug ...
. In 1958 the company started building them from
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 ...
instead of wood, one of the first boats to use the then-new material. The design was also constructed in
Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...
, by
Paceship Yachts Paceship Yachts Limited was a Canada, Canadian, and later United States, American, boat builder originally based in Mahone Bay, Nova Scotia. The company was founded in 1962 and specialized in the design and manufacture of fiberglass sailboats. ...
of
Mahone Bay, Nova Scotia Mahone Bay is a town on the northwest shore of Mahone Bay along the South Shore of Nova Scotia in Lunenburg County. A long-standing picturesque tourism destination, the town has recently enjoyed a growing reputation as a haven for entrepreneur ...
, although they went out of business in 1981 and production had ceased by that time. This manufacturer created the Intercollegiate dinghy, based upon the Tech Dinghy for use in racing between universities. The boat has gone through several redesigns over time, including being modified for sailing in rougher conditions in the
Midwestern United States The Midwestern United States, also referred to as the Midwest or the American Midwest, is one of four census regions of the United States Census Bureau (also known as "Region 2"). It occupies the northern central part of the United States. I ...
. In the 1970s it was modified by
Halsey Herreshoff Halsey Chase Herreshoff (born 1933) is a naval architect of production and custom yachts, sailor and former president of Herreshoff Marine Museum. At the museum he and Edward duMoulin founded the America's Cup Hall of Fame in 1992. Halsey is son o ...
working with the MIT sailing director, Hatch Brown. This version made the boat faster, less prone to ship water and more forgiving to sail for beginners. The sixth version of the boat, marketed as the ''Turbo Tech'', was drawn by Penn Edmonds during the early 1990s and is lighter than the previous generation. This version is now produced by the current builder, Whitecap Composites of
Peabody, Massachusetts Peabody () is a city in Essex County, Massachusetts, United States. The population was 54,481 at the time of the 2020 United States Census. Peabody is located in the North Shore region of Massachusetts, and is known for its rich industrial histo ...
.


Design

The Tech Dinghy is a recreational
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 terminolo ...
, built predominantly of
wood Wood is a porous and fibrous structural tissue found in the stems and roots of trees and other woody plants. It is an organic materiala natural composite of cellulose fibers that are strong in tension and embedded in a matrix of lignin th ...
or, in later versions, from
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 ...
. The sixth generation boats are made from infused
vinylester Vinyl ester resin, or often just vinyl ester, is a resin produced by the esterification of an epoxy resin with acrylic or methacrylic acids. The "vinyl" groups refer to these ester substituents, which are prone to polymerize and thus an inhibitor is ...
over a Core-Cell foam core, with an inner
carbon fiber Carbon fiber-reinforced polymers (American English), carbon-fibre-reinforced polymers (Commonwealth English), carbon-fiber-reinforced plastics, carbon-fiber reinforced-thermoplastic (CFRP, CRP, CFRTP), also known as carbon fiber, carbon compo ...
skin, for improved durability. The boat has a fractional
sloop A sloop is a sailboat with a single mast typically having only one headsail in front of the mast and one mainsail aft of (behind) the mast. Such an arrangement is called a fore-and-aft rig, and can be rigged as a Bermuda rig with triangular sa ...
rig or
catboat A catboat (alternate spelling: cat boat) is a sailboat with a single sail on a single mast set well forward in the bow of a very beamy and (usually) shallow draft hull. Typically they are gaff rigged, though Bermuda rig is also used. Most are fi ...
single sail rig, with the mast repositionable on different mast steps for either configuration. The spars are
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 ...
. It features 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 ...
, an over-vertical transom, a transom-hung
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. ...
and a retractable, lever-controlled centerboard. The hull alone displaces . 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 vesse ...
of with the centerboard extended and with it retracted, allowing beaching or ground transportation on a trailer. For sailing the design is equipped with 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 ...
, 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 ...
and an
outhaul An outhaul is a control line found on a sailboat. It is an element of the running rigging, used to attach the mainsail clew to the boom and tensions the foot of the sail. It commonly uses a block at the boom end and a cleat on the boom, closer ...
. The vang is led to the mast step casting. 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 111.2, noted as "suspect". It is normally raced as a sloop, with a crew of two sailors.


Operational history

MIT has sold off their older wooden boats and some of these are now sailed privately. It was reported in 1994 that some of the original wooden 1935 boats still existed and were still in use, even though almost 65 years old at that point.


See also

*
List of sailing boat types The following is a partial list of sailboat types and sailing classes, including keelboats, dinghies and multihull ( catamarans and trimarans). Olympic classes World Sailing Classes Historically known as the IYRU (International Yacht Racing ...


References


External links

* {{Sailing dinghies and skiffs Dinghies 1930s sailboat type designs Massachusetts Institute of Technology MIT Engineers sailing Sailboat type designs by George Owen Sailboat types built by Beetle Boat Co Sailboat types built by Herreshoff Manufacturing Sailboat types built by Paceship Yachts Sailboat types built by Whitecap Composites