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Foil (fencing)

Weapon and type of modern fencing

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Non-electric and electric foils

Background

There are two types of foil used in modern fencing. Both types are made with the same basic parts: the pommel, grip, guard, and blade. The difference between them is one is electric, and the other is known as "steam" or "dry". The blades of both varieties are capped with a plastic or rubber piece, with a button at the tip in electric blades, that provides information when the blade tip touches the opponent. (There are also a range of plastic swords made by varying manufacturers for use by juniors.) Lacking the button and associated electrical mechanism, a judge is required to determine the scoring and the victor in a tournament with non-electric foils.

Non-electric ones are primarily used for practice. The Fédération Internationale d'Escrime and most national organizations require electric scoring apparatus since the 1956 Olympics, although some organizations still fence competitively with non-electric swords.

Blade

Foils have standardized, tapered, rectangular blades in length and cross-section that are made of tempered and annealed low-carbon steel—or maraging steel as required for international competitions. To prevent the blade from breaking or causing harm to an opponent, the blade is made to bend upon impact with its target. The maximum length of the blade must be 90 cm (35 in). The length of the assembled weapon at maximum is 110 cm (43 in), and the maximum weight must be less than 500 g (18 oz); however, most competition foils are lighter, closer to 350 g (12 oz).

The blade of a foil has two sections: the forte (strong) which is the one third of the blade near the guard, and the foible (weak) which is the two thirds of the blade near the tip. There is a part of the blade contained within the grip called a tang. It extends past the grip enough to be fastened to the pommel and to hold the rest of the foil together. When an Italian grip is used, see below, a ricasso extends from under the guard, inside of the grip's quillons, into the tang.

Guard assembly

The guard is fastened to the blade, plug, and grip. Then the pommel, a type of fastener, is attached to the grip and holds the rest together. The type of pommel used depends on the type of grip. Two grips are used in foil: straight traditional grips with external pommels (Italian, French, Spanish, and orthopedic varieties); and the newer design of pistol grips, which fix the hand in a specific, ergonomic position, and which have pommels that fit into a countersink in the grip.

Electric foils

Beginning with the 1956 Olympics, scoring in foil has been accomplished by means of registering the touch with an electric circuit. A switch at the tip of the foil registers the touch, and a metallic foil vest, or lamé, verifies that the touch is on valid target.

Cord

The cord of any type of electric fencing weapon goes through the fencing gear, coming out behind the fencer. The cord of a foil has one end connecting to the back of the fencing strip, and the other end attaches to the foil. The two ends are not interchangeable with one another.

Socket

The electric foil contains a socket underneath the guard that connects to the scoring apparatus via the body cord and a wire that runs down a channel cut into the top of the blade. Electric foil sockets are fixed so that the body cord plugs into the weapon at the fencer's wrist. There are two main sockets in use today: the "bayonette" which has a single prong and twists-locks into the foil, and the two prong, which has different diameters for each prong, held in place by a clip.

Tip

The tip of the electric foil terminates in a button assembly that generally consists of a barrel, plunger, spring, and retaining screws. The circuit is a "normally closed" one, meaning that at rest there is always a complete power circuit; depressing the tip breaks this circuit, and the scoring apparatus illuminates an appropriate light. Color-coding is used: white or yellow indicates hits not on the valid target area, and either red or green indicate hits on the valid target area (red for one fencer, green for the other). When fencing, the FIA (international fencing federation) states that the tip requires a minimum of 500 grams to complete the circuit.

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