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sandor99 — Steering Parachute Sky Diving by-nc-nd

Published: 2013-10-19 08:36:49 +0000 UTC; Views: 497; Favourites: 3; Downloads: 0
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Description This article is about the device. For sports involving a parachute, see Parachuting. For other meanings, see Parachute (disambiguation).
Parachutes opening

A parachute is a device used to slow the motion of an object through an atmosphere by creating drag, or in the case of ram-air parachutes, aerodynamic lift. Parachutes are usually made out of light, strong cloth, originally silk, now most commonly nylon. Parachutes must slow an object's terminal vertical speed by a minimum 75% in order to be classified as such.[citation needed] Depending on the situation, parachutes are used with a variety of loads, including people, food, equipment, space capsules, and bombs.

Drogue chutes are used to aid horizontal deceleration of a vehicle (a fixed-wing aircraft, or a drag racer), or to provide stability (cetain types of light aircraft in distress;[1][2] tandem free-fall; or a space shuttle after a touchdown).

The word "parachute" comes from the French prefix paracete, originally from the Greek, meaning to protect against, and chute, the French word for "fall", and it was originally coined, as a hybrid word which meant literally "that which protects against a fall", by the French aeronaut François Blanchard (1753–1809) in 1785.
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sesam-is-open [2014-08-19 18:21:07 +0000 UTC]

Conquerors"Courage is the virtue that make possible the other virtues."
Winston Churchill


  
  
 
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