Parachute. Facts about parachutes
A parachute is a means of falling through the air safely from a
great height. Looking rather like a large umbrella, it works by air
resistance. The large inverted curved surface moves downwards slowly
because of the resistance of the air pressing up against it. For the
same reason, a leaf or a sheet of paper falls more slowly than a
stone does.
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Facts about parachutes:
its are important in war. A cluster of six
parachutes supports a 2V2 ton army truck |
Peacetime - uses of parachutes as fact include the sport
of sky-diving. Six airmen join hands in mid-air during a
dive |
Today parachutes have four main uses. They are used in
emergencies by airmen after they have jumped or been ejected from
aircraft and by paratroopers for landing safely. They are used for
slowing down the fall of cargoes dropped from aircraft or space
capsules after they have re-entered the Earth's atmosphere.
Parachutes are used as brakes by high-speed aircraft or 'drag'
racing cars. And they are used in the sport of sky-diving. Special
steerable parachutes allow people to control their falls and land
accurately on target. Many countries have parachute jumping teams
which compete in international matches.
Parachutes are packed in a special way and worn on a harness. A
ring on the front of the pack connects with the rip-cord. When the
ring is pulled, the parachute billows out. The person then falls -
at a speed of about 16 feet per second.
Military parachutes have a recommended service life - 16.5 years.
The personnel parachute has term of use too, which is equal 12 years.
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