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Gaff rig is a
sailing Sailing employs the wind—acting on sails, wingsails or kites—to propel a craft on the surface of the ''water'' ( sailing ship, sailboat, raft, windsurfer, or kitesurfer), on ''ice'' ( iceboat) or on ''land'' ( land yacht) over a chose ...
rig (configuration of sails, mast and stays) in which the
sail A sail is a tensile structure—which is made from fabric or other membrane materials—that uses wind power to propel sailing craft, including sailing ships, sailboats, windsurfers, ice boats, and even sail-powered land vehicles. Sails ma ...
is four-cornered,
fore-and-aft rig A fore-and-aft rig is a sailing vessel rigged mainly with sails set along the line of the keel, rather than perpendicular to it as on a square rigged vessel. Description Fore-and-aft rigged sails include staysails, Bermuda rigged sails, gaff ...
ged, controlled at its peak and, usually, its entire
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 animals may no ...
by a
spar SPAR, originally DESPAR, styled as DE SPAR, is a Dutch multinational that provides branding, supplies and support services for independently owned and operated food retail stores. It was founded in the Netherlands in 1932, by Adriaan van Well ...
(pole) called the ''gaff''. Because of the size and shape of the sail, a gaff rig will have running
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 ma ...
s rather than permanent backstays. The gaff enables a fore and aft sail to be four sided, rather than triangular. A gaff rig typically carries 25 percent more sail than an equivalent
Bermudian rig A Bermuda rig, Bermudian rig, or Marconi rig is a configuration of mast and rigging for a type of sailboat and is the typical configuration for most modern sailboats. This configuration was developed in Bermuda in the 1600s; the term ''Marconi'' ...
for a given hull design. A sail hoisted from a gaff is called a gaff-rigged (or, less commonly, gaff rigged or gaffrigged) sail.


Description

Gaff rig remains the most popular fore-aft rig for
schooner A schooner () is a type of sailing vessel defined by its rig: fore-and-aft rigged on all of two or more masts and, in the case of a two-masted schooner, the foremast generally being shorter than the mainmast. A common variant, the topsail schoo ...
and
barquentine A barquentine or schooner barque (alternatively "barkentine" or "schooner bark") is a sailing vessel with three or more masts; with a square rigged foremast and fore-and-aft rigged main, mizzen and any other masts. Modern barquentine sailing ...
mainsails and other course sails, and
spanker Spanker can refer to: * One who administers a spanking * Spanker (horse), a famous 18th-century thoroughbred race horse * Spanker, Ohio, an unincorporated community * ''SS-17 Spanker'', the NATO reporting name for the MR-UR-100 Sotka interco ...
sails on a
square rig Square rig is a generic type of sail and rigging arrangement in which the primary driving sails are carried on horizontal spars which are perpendicular, or square, to the keel of the vessel and to the masts. These spars are called '' yards'' ...
ged vessel are always gaff rigged. On other rigs, particularly the
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 ...
,
ketch A ketch is a two- masted sailboat whose mainmast is taller than the mizzen mast (or aft-mast), and whose mizzen mast is stepped forward of the rudder post. The mizzen mast stepped forward of the rudder post is what distinguishes the ketch fro ...
and
yawl A yawl is a type of boat. The term has several meanings. It can apply to the rig (or sailplan), to the hull type or to the use which the vessel is put. As a rig, a yawl is a two masted, fore and aft rigged sailing vessel with the mizzen mast p ...
, gaff rigged sails were once common but have now been largely replaced by the
Bermuda rig A Bermuda rig, Bermudian rig, or Marconi rig is a configuration of mast and rigging for a type of sailboat and is the typical configuration for most modern sailboats. This configuration was developed in Bermuda in the 1600s; the term ''Marconi' ...
sail, which, in addition to being simpler than the gaff rig, usually allows vessels to sail closer to the direction from which the wind is blowing (i.e. "closer to the wind"). The gaff is hoisted by 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'' comes from the phrase "to haul yards". Halyards, like most other parts of the running rigging, were classically made of ...
s: *The ''
throat halyard In sailing, the throat halyard (or throat for short) is a line that raises the end of a gaff nearer to the mast, as opposed to the peak halyard which raises the end further from the mast. Such rigging was normal in classic gaff-rigged schooner ...
'' hoists the throat of the sail (the end closer to the mast) at the forward end of the gaff and bears the main weight of the sail and the tension of the luff. *The ''
peak halyard In sailing, the peak halyard (or peak for short) is a line that raises the end of a gaff which is further from the mast, as opposed to the throat halyard which raises the end which is nearer to the mast. Such rigging was normal in classic gaff-rig ...
'' lifts the aft end of the gaff and bears the
leech Leeches are segmented parasitic or predatory worms that comprise the subclass Hirudinea within the phylum Annelida. They are closely related to the oligochaetes, which include the earthworm, and like them have soft, muscular segmented b ...
tension. Small craft attach the peak halyard to the gaff with a wire span with eyes at both ends looped around the gaff and held in place with small wooden chocks, larger craft have more than one span. Peak halyards pull upwards, approaching the gaff at right angles. Additionally, a
gaff vang Gaff may refer to: Ankle-worn devices * Spurs in variations of cockfighting * Climbing spikes used to ascend wood poles, such as utility poles Arts and entertainment * A character in the ''Blade Runner'' film franchise * Penny gaff, a 19th- ...
may be fitted. It is a line attached to the end of the gaff which prevents the gaff from sagging downwind. Gaff vangs are difficult to rig on the
aft "Aft", in nautical terminology, is an adjective or adverb meaning towards the stern (rear) of the ship, aircraft or spacecraft, when the frame of reference is within the ship, headed at the fore. For example, "Able Seaman Smith; lie aft!" or "Wh ...
-most sail, so are typically only found on schooners or ketches, and then only on the foresail or mainsail. A triangular fore-and-aft sail called a jib-headed
topsail A topsail ("tops'l") is a sail A sail is a tensile structure—which is made from fabric or other membrane materials—that uses wind power to propel sailing craft, including sailing ships, sailboats, windsurfers, ice boats, and even sail- ...
may be carried between the gaff and the
mast Mast, MAST or MASt may refer to: Engineering * Mast (sailing), a vertical spar on a sailing ship * Flagmast, a pole for flying a flag * Guyed mast, a structure supported by guy-wires * Mooring mast, a structure for docking an airship * Radio mast ...
.
Gunter-rigged Gunter rig is a configuration of sail and spars used in sailing. It is a fore and aft sail set abaft (behind) the mast. The lower half of the luff (front) of the sail is attached to the mast, and the upper half is fastened to a spar which is ap ...
boats are similar, smaller vessels on which a spar (commonly, but incorrectly called the gaff) is raised until it is nearly vertical, parallel to the mast and close adjacent to it. Topsails are never carried on gunter rigs. The
spritsail The spritsail is a four-sided, fore-and-aft sail that is supported at its highest points by the mast and a diagonally running spar known as the sprit. The foot of the sail can be stretched by a boom or held loose-footed just by its sheets. A spr ...
is another rig with a four-sided fore-aft sail. Unlike the gaff rig where 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 animals may no ...
hangs from a spar along its edge, this rig supports the
leech Leeches are segmented parasitic or predatory worms that comprise the subclass Hirudinea within the phylum Annelida. They are closely related to the oligochaetes, which include the earthworm, and like them have soft, muscular segmented b ...
of the sail by means of a spar named a ''sprit''. The forward end of the sprit is attached to the
mast Mast, MAST or MASt may refer to: Engineering * Mast (sailing), a vertical spar on a sailing ship * Flagmast, a pole for flying a flag * Guyed mast, a structure supported by guy-wires * Mooring mast, a structure for docking an airship * Radio mast ...
but bisects the face of the sail, with the after end of the sprit attaching to the peak and/or the
clew Sail components include the features that define a sail's shape and function, plus its constituent parts from which it is manufactured. A sail may be classified in a variety of ways, including by its orientation to the vessel (e.g. ''fore-and-a ...
of the sail.


Sailing characteristics (small craft)

For a given sail area a gaff rig has a shorter mast than a
Bermudan rig A Bermuda rig, Bermudian rig, or Marconi rig is a configuration of mast and rigging for a type of sailboat and is the typical configuration for most modern sailboats. This configuration was developed in Bermuda in the 1600s; the term ''Marconi'', ...
. In short-ended craft with full body, heavy displacement and moderate
ballast Ballast is material that is used to provide stability to a vehicle or structure. Ballast, other than cargo, may be placed in a vehicle, often a ship or the gondola of a balloon or airship, to provide stability. A compartment within a boat, ship, ...
ratio, it is difficult to set enough sail area in the Bermudan rig without a mast of excessive height and a centre of effort (CE) too high for the limited
stability Stability may refer to: Mathematics * Stability theory, the study of the stability of solutions to differential equations and dynamical systems ** Asymptotic stability ** Linear stability ** Lyapunov stability ** Orbital stability ** Structural st ...
of the
hull Hull may refer to: Structures * Chassis, of an armored fighting vehicle * Fuselage, of an aircraft * Hull (botany), the outer covering of seeds * Hull (watercraft), the body or frame of a ship * Submarine hull Mathematics * Affine hull, in affi ...
. Because of its low aspect ratio, the gaff rig is less prone to
stall Stall may refer to: Enclosures * Animal stall, an enclosure for an animal * Restroom stall, an enclosure providing privacy to the user of a single toilet in a public restroom * Market stall, a makeshift or mobile structures for selling market good ...
ing if oversheeted than something taller and narrower.


Reaching with gaff sails

Whilst reaching, the CE being set further back, will encourage a small craft to bear up into the wind, i.e. strong
weather helm Weather helm is the tendency of sailing vessels to turn towards the source of wind, creating an unbalanced helm that requires pulling the tiller to windward (i.e. 'to weather') in order to counteract the effect. Weather helm is the opposite of le ...
. The boat builder can compensate for this at design stage, e.g. by shifting the keel slightly aft, or having two jibs to counter the effect. The gaff-cutter is in fact a very popular
sailplan A sail plan is a description of the specific ways that a sailing craft is rigged. Also, the term "sail plan" is a graphic depiction of the arrangement of the sails for a given sailing craft.> In the English language, ships were usually describe ...
for small craft. The helmsman can reduce weather helm significantly, simply by sheeting out the mainsail. Sheeting out may appear to create an inefficient belly in the sail, but it is often a pragmatic alternative to having a heavy helm. A swing keel lifted halfway is the perfect treatment for weather helm on a gaffer. The usual adjustments to mast rake, or even bowsprit length may be made to a gaffer with persistent heavy weather (or lee) helm.


Running with gaff sails

On a gaff-rigged vessel, any heading where the wind is within 20 degrees of dead aft is considered a
run Run(s) or RUN may refer to: Places * Run (island), one of the Banda Islands in Indonesia * Run (stream), a stream in the Dutch province of North Brabant People * Run (rapper), Joseph Simmons, now known as "Reverend Run", from the hip-hop grou ...
. When
running Running is a method of terrestrial locomotion allowing humans and other animals to move rapidly on foot. Running is a type of gait characterized by an aerial phase in which all feet are above the ground (though there are exceptions). This is ...
with a gaff-rig, the CE of the mainsail may actually be overboard of the hull, in a stiff wind the craft may want to
broach The BROACH warhead is a multi-stage warhead developed by Team BROACH; BAE Systems Global Combat Systems Munitions, Thales Missile Electronics and QinetiQ. BROACH stands for ''Bomb Royal Ordnance Augmented CHarge''. Development of BROACH began ...
. Running goose winged with a balloon staysail poled out to windward will balance the CE; Nick Skeates circumnavigated ''Wylo II'' with this configuration. In light winds, or when racing, a
watersail A watersail is a sail hung below the boom. It is used mostly on gaff rig Gaff rig is a sailing rig (configuration of sails, mast and stays) in which the sail is four-cornered, fore-and-aft rigged, controlled at its peak and, usually, its e ...
may also be set.


Gaffers Day

Since 1972, the
Sydney Amateur Sailing Club The Sydney Amateur Sailing Club (SASC) is one of the oldest sailing clubs in Australia and is located on Sydney's lower north shore, with its clubhouse on the western edge of Mosman Bay. Establishment The Sydney Amateur Sailing Club was found ...
has regularly hosted a Gaffers Day for any classic sailing boat that can "hoist a spar". Up to 90 vessels from around Australia take part in sailing on Sydney Harbour in a practical demonstration of the skills and technology used in the nautical past.


Gallery

File:J&ERiggin.jpg, Gaff rigged schooner '' J. & E. Riggin''. Her sails, from left to right, are:
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 ...
,
staysail A staysail ("stays'l") is a fore-and-aft rigged sail whose luff can be affixed to a stay running forward (and most often but not always downwards) from a mast to the deck, the bowsprit, or to another mast. Description Most staysails are t ...
, gaff foresail, gaff mainsail, and, above that, a main gaff topsail File:Partridge 1885 - Sails.jpg, Gaff rigged Cutter
Partridge 1885 Partridge is documented as being the world's oldest, still fully operational classic racing yacht. History of Partridge "Partridge" was built in 1885 at the Camper and Nicholson boatyard in Gosport, Hampshire, England, 'the oldest leisure marine ...
. File:Bermudianised Gaff Rig.jpg, A near-vertical gaff allows this Gunter-rigged boat to carry a triangular sail that is similar to the
Bermuda rig A Bermuda rig, Bermudian rig, or Marconi rig is a configuration of mast and rigging for a type of sailboat and is the typical configuration for most modern sailboats. This configuration was developed in Bermuda in the 1600s; the term ''Marconi' ...
File:Schotel Gaffelaar.jpg, ''Gaffelaar'', by
Johannes Christiaan Schotel Johannes Christiaan Schotel (11 November 1787 – 21 December 1838) was a 19th-century painter from the Northern Netherlands known for his marines and artwork. Talent was handed down by generation to the next throughout the Schotel family pro ...
, depicting both gaff and square-rigged boats File:Centennial Regatta, Sydney.jpg, Gaff rigged yachts race on Sydney Harbour, circa 1900 File:Sloop Carmita-2.jpg, ''Carmita'', racing
cutter Cutter may refer to: Tools * Bolt cutter * Box cutter, aka Stanley knife, a form of utility knife * Cigar cutter * Cookie cutter * Glass cutter * Meat cutter * Milling cutter * Paper cutter * Side cutter * Cutter, a type of hydraulic rescue to ...
File:Governor Ames.jpg, ''
Governor Ames The ''Governor Ames'' was the first five-masted schooner. In the late 19th century, she was the world's largest cargo vessel. She was launched on December 1, 1888, by the Leavitt-Storer shipyard of Waldoboro, Maine, United States, and was name ...
'', five-masted
schooner A schooner () is a type of sailing vessel defined by its rig: fore-and-aft rigged on all of two or more masts and, in the case of a two-masted schooner, the foremast generally being shorter than the mainmast. A common variant, the topsail schoo ...
File:Victory Chimes.jpg, ''Victory Chimes'', National Historic Landmark File:Errol Flynn's Zaca.jpg, ''Zaca'', owned by
Errol Flynn Errol Leslie Thomson Flynn (20 June 1909 – 14 October 1959) was an Australian-American actor who achieved worldwide fame during the Golden Age of Hollywood. He was known for his romantic swashbuckler roles, frequent partnerships with Olivia ...
File:IJsselmeerTraditionalBoat.JPG, Traditional Dutch sailing barge File:Jacob van Strij - Het Jacht van de kamer Rotterdam.jpg, The yacht of the VOC-Chamber of Rotterdam, by Jacob van Strij File:Rose Dorothea-Lipton's Cup-1907 Fishermen's Race.jpg, The schooner ''Rose Dorothea'' in 1907 File:Galway hookers, Belfast, June 2010 (06).JPG, Traditional Galway hooker, Ireland, June 2010 File: Bluenose sailing 1921.jpg, Original iconic Canadian schooner Bluenose


See also

*
Gunter rig Gunter rig is a configuration of sail and spars used in sailing. It is a fore and aft sail set abaft (behind) the mast. The lower half of the luff (front) of the sail is attached to the mast, and the upper half is fastened to a spar which is ...
*
Parts of a sail Sail components include the features that define a sail's shape and function, plus its constituent parts from which it is manufactured. A sail may be classified in a variety of ways, including by its orientation to the vessel (e.g. ''fore-and-a ...
*
Spritsail The spritsail is a four-sided, fore-and-aft sail that is supported at its highest points by the mast and a diagonally running spar known as the sprit. The foot of the sail can be stretched by a boom or held loose-footed just by its sheets. A spr ...
*
Lug sail The lug sail, or lugsail, is a fore-and-aft, four-cornered sail that is suspended from a spar, called a yard. When raised, the sail area overlaps the mast. For "standing lug" rigs, the sail may remain on the same side of the mast on both the por ...


References


Further reading

* {{Sailing vessels and rigs Sailing rigs and rigging Nautical terminology