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A Brief History of Parachutes. (Skydiving, Parachuting).

April 15th, 2011 Denzel Skydiver No comments

Title:

A Brief History of Parachutes. (Skydiving, Parachuting).

Pages: 1 2

The physics behind a parachute is easy to understand. But making real ones are far from easy. Making toy parachutes seem like a good idea for an easy science project but experimenting with different variations is not as easy as tying strings to a fabric. Making parachutes for use in real life takes a lot of risk and accuracy.

Before modern parachutes gave us the thrill of skydiving it took a lot of guts for early investors to design parachutes that actually work and not fall them to their death. The history of parachutes went through a lot of development and a few deaths.

The modern parachute was invented by Louis-Sébastien Lenormand in 1783. However there are earlier versions of parachutes created by a few centuries earlier. Before the silk parachute was invented, there were basic designs built that worked in the same principles.

Parachutes, past and present

The earliest form was a cloak attached to wooden struts. It was made by an Arab Muslim named Arem Firman in the 9th century. He jumped from a tower in Cordoba and suffered only minor injuries. Parasols were used in China for entertainment. It allows entertainers to jump form high places and float to the ground.

Leonardo da Vinci also sketched parachute with conical designs. It served as an escape device to enable people to jump from burning buildings. In 1617 Faust Vrancic was the first person to be able to make a successful jump with a parachute.

Jean Pierre Blanchard developed his own parachute as a means to get off a hot air balloon. His first demonstrations were done with a dog as the passenger. He later on unintentionally put his invention to the test as he escaped from his ruptured hot air balloon.

In the 1790′s he made a parachute out of silk which were more stringer and lighter than previously used materials. Early parachutes were made of linen with a wooden frame.

Andre Garnerin invented the vented parachute in 1797 and made a successful jump using Blanchard’s design. The vented parachute improved stability during descent. Gleb Kotelnikov invented he knapsack parachute. It was popularized by Katchlen Paulus and Paul Letterman.

The first major use of parachutes was in the military. It was by artillery spotters and pilots. Unfortunately the parachutes were heavy and pilots were not able to use it entirely. The German Air Service provided parachutes to their pilots. Unfortunately there were many setbacks that most of the pilots died when using them.

Leslie Irvin was able to invent

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Categories: Parachuting

Parachute Science. (Skydiving, Parachuting).

April 9th, 2011 Denzel Skydiver 1 comment

Title:

Parachute Science. (Skydiving, Parachuting).

Pages: 1 2

We all know what parachutes are for. They are very to make as a science project. However the science behind a parachute is not as easy as you think. There are key factors that you have to consider. Experimenting may take a bit of patience if you intend to study them seriously.

They came in different sizes and designs. For a parachute to able to work in real life, actually takes accuracy and extra caution, after all lives are at risk.

Modern designs have come along way compared to their earlier forms. The very first modern parachute was invented in 1783 but there were also earlier forms. Several individuals have dared to take the leapt to test their designs. Some were successful but some lost their lives due to poor designs and setbacks.

Science behind the parachute

The earlier forms were made of fabric and wooden struts. Most of these were conical shaped. At that time the parachute was only intended for entertainment. It was later on conceived as an escape device two years after the modern parachute was invented.

It was used to get off a hot air balloon. Later developments lead to the use of silk, vented parachute and knapsack parachutes. After successful jumps it was then used in the military during World War I and II.

Nowadays it is more popularly used for extreme sports such as skydiving. The main idea behind it is that the parachute slows down a falling object. It does this by creating a drag or air resistance. When the parachute canopy is deployed the air molecules move farther out creating drag. The more drag that is created the slower the object falls down.

The drag or air resistance depends on the surface area of the object. Parachute canopies have large surface area which creates enough drag for its passenger. Shapes also have an effect on the efficiency of the parachute. Modern designs have rectangular or tapered shapes.

Tapered parachutes are in parachute sports. They have more fabric cells to enable more control and speed. Rectangular ones on the other hand are used for recreation. The safer and more frequently used in training programs for students.

Parachutes must also be packed correctly for it to deploy properly. If the canopy deploys too quickly it may rip and/or hurt the skydiver. The canopy may get tangled with the lines or does not inflate. The lines may also break. Due to this sliders were added in Ram air parachutes to slow down the opening of the canopy.

Modern designs also have

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Categories: Parachuting

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