The S2 11.0 is a series of 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 ...

s that was designed by

Arthur Edmunds Arthur Edmunds (May 18, 1933 – July 21, 2005) was an American naval architect, credited with designing 29 sailboats as well as other boats of various types and forms. He is recognized as a top naval architect in the US. Edmunds's best known pro ...

as cruisers and first built in 1977. The designation indicates the approximate

length overall Length overall (LOA, o/a, o.a. or oa) is the maximum length of a vessel's hull measured parallel to the waterline. This length is important while docking the ship. It is the most commonly used way of expressing the size of a ship, and is also ...

in meters.Sherwood, Richard M.: ''A Field Guide to Sailboats of North America, Second Edition'', pages 288-289. Houghton Mifflin Company, 1994.

Production

The series was built by S2 Yachts in

Holland, Michigan Holland is a city in Ottawa County, Michigan, Ottawa and Allegan County, Michigan, Allegan counties in the U.S. state of Michigan. Located in the West Michigan, western region of the Lower Peninsula of Michigan, Lower Peninsula, the city is si ...

United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...

, between 1977 and 1987, but it is now out of production.

Design

The S2 11.0 is a recreational

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 (English in the Commonwealth of Nations, Commonwealth English) is a common type of fibre-reinforced plastic, fiber-reinforced plastic using glass fiber. The fibers may be randomly arranged, flattened i ...

, with a

balsa ''Ochroma pyramidale'', commonly known as balsa, is a large, fast-growing tree native to the Americas. It is the sole member of the genus ''Ochroma'', and is classified in the subfamily Bombacoideae of the mallow family Malvaceae. The tree is fa ...

-cored deck and wooden 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 with

aluminum Aluminium (or aluminum in North American English) is a chemical element; it has chemical symbol, symbol Al and atomic number 13. It has a density lower than that of other common metals, about one-third that of steel. Aluminium has ...

spars, 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 raised counter

reverse transom In some boats and ships, a transom is the aft transverse surface of the hull that forms the stern of a vessel. Historically, they are a development from the canoe stern (or "double-ender") wherein which both bow and stern are pointed. Transom ...

, an internally mounted spade-type

rudder A rudder is a primary control surface used to steer a ship, boat, submarine, hovercraft, airship, or other vehicle that moves through a fluid medium (usually air or water). On an airplane, the rudder is used primarily to counter adverse yaw ...

controlled by a

wheel A wheel is a rotating component (typically circular in shape) that is intended to turn on an axle Bearing (mechanical), bearing. The wheel is one of the key components of the wheel and axle which is one of the Simple machine, six simple machin ...

and a fixed fin

keel The keel is the bottom-most longitudinal structural element of a watercraft, important for stability. On some sailboats, it may have a fluid dynamics, hydrodynamic and counterbalancing purpose as well. The keel laying, laying of the keel is often ...

. The boat has a draft of with the standard keel and with the optional shoal draft keel. The boat is fitted with a Universal,

Volvo The Volvo Group (; legally Aktiebolaget Volvo, shortened to AB Volvo, stylized as VOLVO) is a Swedish multinational manufacturing corporation headquartered in Gothenburg. While its core activity is the production, distribution and sale of truck ...

, Pathfinder or

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, cons ...

diesel engine The diesel engine, named after the German engineer Rudolf Diesel, is an internal combustion engine in which Combustion, ignition of diesel fuel is caused by the elevated temperature of the air in the cylinder due to Mechanics, mechanical Compr ...

for docking and maneuvering. The fuel tank holds and the fresh water tank has a capacity of .

Variants

;11.0 A :Aft cockpit model, introduced in 1977 and produced until 1987, with 156 built. It has a length overall of , a waterline length of , displaces and carries of ballast. :The sleeping accommodation includes a forward private bow cabin with a "V"-berth and a main cabin settee berth, with a second "U" settee around the fixed dinette table. The

galley A galley is a type of ship optimised for propulsion by oars. Galleys were historically used for naval warfare, warfare, Maritime transport, trade, and piracy mostly in the seas surrounding Europe. It developed in the Mediterranean world during ...

is aft and on the port side, at the foot of the

companionway In the architecture of a ship, a companion or companionway is a raised and windowed hatchway in the ship's deck, with a ladder leading below and the hooded entrance-hatch to the main cabins. A companionway may be secured by doors or, commonly i ...

steps. The gallery has a two-burner, alcohol-fired stove, plus an oven. The

head A head is the part of an organism which usually includes the ears, brain, forehead, cheeks, chin, eyes, nose, and mouth, each of which aid in various sensory functions such as sight, hearing, smell, and taste. Some very simple ani ...

is on the port side, just aft of the bow cabin. There is also a navigation station aft on the starboard side, opposite the galley. ;11.0 C :Center cockpit model, introduced in 1980 and produced until 1987, with 66 built. It uses the same hull and sailplan as the "A" model. It has a length overall of , a waterline length of , displaces and carries of ballast. :The accommodation includes an aft private cabin, a forward private bow cabin with louvred doors and "V"-berth and two main cabin settee berths around the drop-leaf table. It has sleeping accommodation for six people. The main salon seating area is forward, with the galley aft, on the port side. The gallery has a two-burner, alcohol-fired stove, plus an oven. The head is on the starboard side, opposite the galley, with the companionway steps from the overhead cockpit in between the head and galley. The head includes a shower and bathtub, with pressurized water. There is also a navigation station to starboard, with a seat that swings away over the starboard settee, when not in use. Ventilation is provided by two large windows, two

dorade vent A dorade box (also called a dorade vent, collector box, cowl vent, or simply a "ventilator") is a type of vent that permits the passage of air in and out of the cabin or engine room of a boat while keeping rain, spray, and sea wash out. Design T ...

s and two acrylic hatches. The bow includes a self-draining

anchor An anchor is a device, normally made of metal, used to secure a vessel to the bed of a body of water to prevent the craft from drifting due to wind or current. The word derives from Latin ', which itself comes from the Greek (). Anch ...

locker. :For sailing there are two primary winches mounted to the cockpit coamings, plus two

halyard In sailing, a halyard or halliard is a line (rope) that is used to hoist a ladder, sail, flag or yard. The term "halyard" derives from the Middle English ''halier'' ("rope to haul with"), with the last syllable altered by association with the E ...

winches forward on the cabin roof. The

genoa Genoa ( ; ; ) is a city in and the capital of the Italian region of Liguria, and the sixth-largest city in Italy. As of 2025, 563,947 people live within the city's administrative limits. While its metropolitan city has 818,651 inhabitan ...

has an adjustable track. The

mainsail A mainsail is a sail rigged on the main mast (sailing), mast of a sailing vessel. * On a square rigged vessel, it is the lowest and largest sail on the main mast. * On a fore-and-aft rigged vessel, it is the sail rigged aft of the main mast. T ...

boom has a 5:1 mechanical advantage

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 ...

and internal double

reefing Reefing reduces the area of a sail, usually by folding or rolling one edge of the canvas in on itself and attaching the unused portion to a Spar (sailing), spar or a , as the primary measure to preserve a sailing vessel's stability in strong wi ...

Operational history

In a 1994 review of the 11.0 C Richard Sherwood wrote, "the 11.0 C model ... has the same underwater lines as the 11.0 A. There is substantial weight and a broad beam for stability. The deep keel and rudder help track off the wind. The center cockpit has become very popular for cruisers, and the 11.0 has a big one."

References

{{S2 Yachts Keelboats 1970s sailboat type designs Sailing yachts Sailboat type designs by Arthur Edmunds Sailboat types built by S2 Yachts

Production

Design

Variants

Operational history

See also

References