A double scull is a rowing boat used in the sport of competitive rowing

Rowing (sport)

Rowing is a sport in which athletes race against each other on rivers, on lakes or on the ocean, depending upon the type of race and the discipline. The boats are propelled by the reaction forces on the oar blades as they are pushed against the water...

. It is designed for two persons who propel the boat by sculling

Sculling

Sculling generally refers to a method of using oars to propel watercraft in which the oar or oars touch the water on both the port and starboard sides of the craft, or over the stern...

 with two oars

Oar (sport rowing)

In rowing, oars are used to propel the boat. Oars differ from paddles in that they use a fixed fulcrum to transfer power from the handle to the blade, rather than using the athlete's shoulders or hands as the pivot-point as in canoeing and kayaking. Typical Sculling oars are around 284 cm -...

, one in each hand.

Racing boats (often called "shells") are long, narrow, and broadly semi-circular in cross-section in order to reduce drag to a minimum. They usually have a fin towards the rear, to help prevent roll and yaw. Originally made from wood

Wood

Wood is a hard, fibrous tissue found in many trees. It has been used for hundreds of thousands of years for both fuel and as a construction material. It is an organic material, a natural composite of cellulose fibers embedded in a matrix of lignin which resists compression...

, shells are now almost always made from a composite material

Composite material

Composite materials, often shortened to composites or called composition materials, are engineered or naturally occurring materials made from two or more constituent materials with significantly different physical or chemical properties which remain separate and distinct at the macroscopic or...

 (usually carbon-fibre reinforced plastic) for strength and weight advantages. The riggers in sculling apply the forces symmetrically to each side of the boat.

Double sculls is one of the classes recognized by the International Rowing Federation

International Rowing Federation

The Fédération Internationale des Sociétés d'Aviron, or FISA for short, is the International Rowing Federation which is the governing body for international Rowing. Its current president is Denis Oswald...

 and the Olympics

Olympic Games

The Olympic Games is a major international event featuring summer and winter sports, in which thousands of athletes participate in a variety of competitions. The Olympic Games have come to be regarded as the world’s foremost sports competition where more than 200 nations participate...

.

In contrast to the combination of the coxed pair

Coxed pair

A coxed pair is a rowing boat used in the sport of competitive rowing. It is designed for two persons who propel the boat with sweep oars and is steered by a coxswain....

, in which the distribution of the riggers means the forces are staggered alternately along the boat, the symmetrical forces in sculling make the boat more efficient and so the double scull is faster than the coxless pair

Coxless pair

A Coxless pair is a rowing boat used in the sport of competitive rowing. It is designed for two rowers, who propel the boat with sweep oars.The crew consists of a pair of rowers, each having one oar, one on the stroke side and one on the bow side...

.

A double sculling skiff

Thames skiff

A Thames skiff is a traditional River Thames wooden rowing boat used for the activity of Skiffing. These boats evolved from Thames wherries in the Victorian era to meet a passion for river exploration and leisure outings on the water.-Construction of a skiff:...

 has a similar layout to a double scull and is rowed in a similar way but usually has a cox as well as two rowers. It is clinker built with fixed seats and thole pins and can be skiffed

Skiffing

Skiffing refers to the sporting and leisure activity of rowing a Thames skiff. A Thames skiff is a traditional hand built clinker-built wooden craft of a design which has been seen on the River Thames and other waterways in England and other countries for nearly 200 years...

 for leisure purposes or for the sport of skiff racing.

See also

• Rowing at the Summer Olympics
  Rowing at the Summer Olympics
  Rowing at the Summer Olympics has been part of the competition since the 1900 Summer Olympics. Rowing was on the program at the 1896 Summer Olympics but was cancelled due to bad weather. Only men were allowed to compete until the women's events were introduced at the 1976 Summer Olympics in Montreal...
  
  
• World Rowing Championships
  World Rowing Championships
  The World Rowing Championships is an international rowing regatta organized by FISA . It is a week long event held at the end of the northern hemisphere summer and in non-Olympic years is the highlight of the international rowing calendar.The first event was held in Lucerne, Switzerland in 1962...
  
  
• Double Sculls Challenge Cup
  Double Sculls Challenge Cup
  The Double Sculls Challenge Cup is a rowing event for men's double sculls at the annual Henley Royal Regatta on the River Thames at Henley-on-Thames in England. It is open to male crews from all eligible rowing clubs. Two clubs may combine to make an entry....
  
   at Henley Royal Regatta
  Henley Royal Regatta
  Henley Royal Regatta is a rowing event held every year on the River Thames by the town of Henley-on-Thames, England. The Royal Regatta is sometimes referred to as Henley Regatta, its original name pre-dating Royal patronage...