Parachute fabrics

PRESENTATION

1. PARACHUTE FABRICS Prepared by: Asaye Dessie July. 2019

2. Introduction properties of Parachute fabrics Materials Significance of Proper Textile Materials Selection Main part of parachute Types of parachute Principle of parachute Manufacturing process Future trends and developments of Parachute Industry R eference 2 Contents

3. A parachute is a device used to slow the movement of a person or object as it falls or moves through the air by creating a drag. The word 'parachute' is derived from the French words parare, meaning to shield, or to ward off and chute, meaning a fall. Used primarily for safe descent from high altitudes (e.g. a spacecraft reentering the atmosphere, a person or object dropped from an airplane ) 3 Introduction

4. Every physical, constructional parameter and the fabric property have their own significance with regard to their role in: Parachute construction Packing Deployment and Service life. 4 cont…

5. 5 properties of Parachute fabrics

6. Materials in various forms used to form parachute are: There are different Textile Materials Used in Parachute. E.g.. Cotton, Hemp, Flax, Silk , L inen, Nomex, Spectra, Vectran, Dacron, N ylon, Kevlar etc. 6 Materials for parachute plastics, synthetics, fasteners, housings, ripcords, cables and swages Fabrics, webbings (tapes), cords, lines, threads, hardware,

7. The main difference of textile products than others are: comfort, handle , soft, flexible structures, low opening forces, good drag, stability , durability, low weight, low bulk, less space covering and cost effectiveness . 7 Significance of Proper Textile Materials Selection

8. 8 Main part of parachute A basic parachute has 5 main parts . pilot chute   is a little canopy for pulling out a bigger one.   canopy   (top vent): it is the main one which usually is made from nylon.  Suspension lines   are those that can be found connecting the canopy to the harness.   H arness   is made up of group of straps which can fit to a person and will work as a body support. Ripcord (control lines) is fastened to the harness used for supports

9. There are two types of parachute 9 Types of parachute 1. Dome canopy 2. Rectangular parafoil, or arm-air canopy

10. The simple equipment works on the basic principle of ‘ air resistance’ and ‘ gravity ’ Parachute fabric have large surface area, made of a lightweight and flexible fabric, It creates an air drag, which acts in opposition to the fall The air molecules covered by the large surface area of the fabric tend to move upwards applying a reverse force to the force of gravity 10 Principle of parachute

11. 11 Manufacturing process The general process flow of parachute manufacturing are Assembling Finishing Rigging Assembling Means To fit together the parts or pieces of parachute Finishing Means complete the manufacture or decoration of (a parachute by giving it an attractive surface appearance. Rigging Means the system of ropes, cables, or chains employed to support the structure of parachute.

12. Parachute makers continually search for better materials and designs . The most interesting future development for parachutes is their potential use to control the emergency descent of entire aircraft. As of June 1998, Ballistic Recovery Systems (BRS) had documented 121 lives saved by the devices. By the late 1990s, more than 14,000 light and ultra light airplanes have already been equipped . 12 Future Trends and Developments in Parachute Industry Firman’s trial was taken as a first parachute jumping trial. The modern parachute was invented in the late 18th century by Louis-Sébastien Lenormand in France In 1930s unexpected and amazing developments was seen on parachute technology.

13. 13 REFERENCE M. Fatih CANBOLAT, (2011), “ Parachute Industry & Its Dynamics”, Electronic Journal of Textile Technologies, Vol : 5, No: 1 El 235 Shakankery et al, (2017) , “ Predicting Air Permeability of Nylon Parachute Fabrics ”, International Design Journal, Volume 7. Scott Roland1 et al. (2015), “ Implementation of Mr . Govind N. Salunkhe , (2013), “Requirements of parachute fabric” http://www.technicaltextile.net/articles/sporttextiles/detail.aspx?article_id=7170 http ://www.madehow.com/Volume-5/Parachute.html https://www.azom.com/article.aspx?ArticleID=10429 http :// funcoolfacts.blogspot.com/2015/05/facts-about-parachutes.html http://www.authorstream.com/Presentation/aSGuest94958-963709-parachute-fabric-ppt /

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