A B C D E F G H I J K L M N O P Q R S T U V W X Y



Back to: "P"

parachute
Definição1
An umbrella-shaped area of fabric for producing drag. The fabric body is the canopy, constructed of a number of tapering strips, called gores, which meet at the top like slices of an orange. A hole at the top, called a vent, allows air to flow through, thereby helping to keep the parachute steady. Fastened firmly between the gores are strong cords, called shrouds, which distribute the load evenly over the canopy. Ribbon parachutes have a canopy built of strips joined only at the top. This design retards the aircraft's speed on landing. Round parachutes are designed to produce drag and stabilize loads dropped from an aircraft. The round parachute also is used in older aircraft with extremely high landing speeds to help slow the aircraft. Square parachutes, used for skydiving, are constructed of fabric and designed to behave like an airfoil. They are extremely maneuverable. The three main types of parachute packs are the seat pack, back pack, and observer. The observer parachute clips onto the lungs of the harness and is positioned on the wearer's chest. Emergency parachutes are also normally positioned on the wearer's chest. Parachutes used to retard the aircraft's speed on landing are known as tail parachutes, tail chutes, or drag chutes. The parachutes may be used by crews or troops and for dropping supplies, providing antispinning properties, and slowing down aircraft or even bombs.
Fonte1
KUMAR, Bharat (ed.). An illustrated dictionary of aviation. New York: McGraw-Hill, c2005. 752 p.
Fonte2
INTERNATIONAL CIVIL AVIATION ORGANIZATION. Annex 2 to the Convention on International Civil Aviation. Rules of the air. 10th ed. Montreal, 2005.
Nota Adicional1
Information regarding this term is a result of researches developed by DECEA in cooperation with ANAC.
Contexto
Parachute descents, other than emergency descents, shall not be made except under conditions prescribed by the appropriate authority and as indicated by relevant information, advice and/or clearance from the appropriate air traffic services unit.
Subárea
Air Sports Search and Rescue Parachuting
Related Term
parachute vent
paratrooper
powered parachute
Français
parachute
Imagem

 A U.S. Navy Parachute Team

A U.S. Navy Parachute Team "Leap Frogs" jumper landing a 'square' ram-air parachute.

Fonte: http://en.wikipedia.org/wiki/File:Ram_air_square.jpg