The S2 9.1 is an American

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 Graham & Schlageter as a

Midget Ocean Racing Club The Midget Ocean Racing Club (MORC) is an American association based in Severna Park, Maryland, that promotes and organizes ocean racing for small sailboats under a handicapping rule. History Founded in 1954, the club was formally organized a ...

(MORC) racer and first built in 1983. The boat was built in a variety of models. The designation indicates the approximate length overall in meters.

Production

The design was built by

S2 Yachts S2 Yachts is an American boat builder based in Holland, Michigan. From 1974 until 1989 the company specialized in the design and manufacture of fiberglass sailboats and it continues as a builder of motorboats. The company was founded by Leon S ...

Holland, Michigan Holland is a city in the western region of the Lower Peninsula of the U.S. state of Michigan. It is situated near the eastern shore of Lake Michigan on Lake Macatawa, which is fed by the Macatawa River (formerly known locally as the Black R ...

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 U.S. state, states, a Washington, D.C., federal district, five ma ...

from 1983 until 1987 with 127 boats completed, but it is now out of production.

Design

The S2 9.1 is a racing

keelboat A keelboat is a riverine cargo-capable working boat, or a small- to mid-sized recreational sailing yacht. The boats in the first category have shallow structural keels, and are nearly flat-bottomed and often used leeboards if forced in open w ...

, 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 cl ...

, 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, a

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 plumb

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

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 air or water). On an aircraft the rudder is used primarily to counter adverse yaw a ...

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 fixed fin

keel The keel is the bottom-most longitudinal structural element on a vessel. On some sailboats, it may have a hydrodynamic and counterbalancing purpose, as well. As the laying down of the keel is the initial step in the construction of a ship, in B ...

. The boat is fitted with a Japanese

Yanmar is a Japanese diesel engine, heavy machinery and agricultural machinery manufacturer founded in Osaka, Japan in 1912. Yanmar manufactures and sells engines used in a wide range of applications, including seagoing vessels, pleasure boats, const ...

2GM

diesel engine The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-ca ...

of for docking and maneuvering. The fuel tank holds and the fresh water tank has a capacity of . The first seven boats built were delivered to customers with a shorter mast, now known as the "9.1 SM". Owners of those boats thought the design was under-powered and a mast about taller, along with sails with more area were used on later boats and became the standard for the class.

Variants

;S2 9.1 SM :This original short mast-equipped model has a mast that is approximately shorter than the later standard mast. The boat has a length overall of , a

waterline length A vessel's length at the waterline (abbreviated to L.W.L)Note: originally Load Waterline Length is the length of a ship or boat at the level where it sits in the water (the ''waterline''). The LWL will be shorter than the length of the boat over ...

of and displaces . It has a draft of with the standard keel. The design has a

hull speed Hull speed or displacement speed is the speed at which the wavelength of a vessel's bow wave is equal to the waterline length of the vessel. As boat speed increases from rest, the wavelength of the bow wave increases, and usually its crest-to-t ...

of . ;S2 9.1 :This model has a length overall of , a waterline length of , displaces and carries of ballast. The boat has a draft of with the standard fin keel. The design has a hull speed of . ;S2 9.1 SD :This shoal draft keel model has a length overall of , a waterline length of and displaces . The boat has a draft of with the shoal draft keel. The design has a hull speed of . ;S2 9.1 SE :This model has a length overall of , a waterline length of and displaces . The boat has a draft of with the standard keel. The design has a hull speed of .

Operational history

The boat is supported by an active class club that organizes racing events, the ''S2 9.1 Meter North American One Design Class Association''. In a 2002 review Bill Brockway reported in ''Sailing World'', "one successful racer from Seattle says that his S2 9.1 tall-rig boat is a good all-rounder in medium air, best upwind at the upper end of a No. 1, and can sail well going deep on a downwind leg."

References

{{S2 Yachts Keelboats 1980s sailboat type designs Sailing yachts Sailboat type designs by Graham & Schlageter Sailboat types built by S2 Yachts

Production

Design

Variants

Operational history

See also

References