How many times a day do you hear a jet plane roar over the roof of your house, leaving a trail of dark, black smoke behind it? People around the world complain about the noise and contamination produced by jet planes as they fly over densely populated cities. Airplanes fly 24 hours a day consuming thousands upon thousands of gallons of fuel per minute. Many jet engine manufacturers have tried time and time again to reduce the noise and contamination produced by their engines, but to no avail. General Electric is now incorporating new technology into its engines that will not only reduce fuel consumption and contamination produced by jet engines, but also increase their thrust power. General Electric was able to reduce some of the fuel consumption of its jet engines by incorporating composite fan blades. One of the biggest factors influencing the efficiency of aircraft jet engines today is the weight of the components. If you were to weigh a single large enough jet engine blade, you would be very surprised at how much it weighs. Each of these blades must be driven, using the energy of the fuel that is burned in the combustion chamber, creating high fuel consumption. General Electric is trying to reduce the weight of the fan blades used on its engines by making them from various lightweight materials. The original blades were made of very heavy metal, to increase their strength and durability. In an article about the new GE9X turbine engine, Bill Millhaem said, “The GE9X fan blade will feature a new high-strength carbon fiber material and a steel alloy leading edge.” These blades were installed in the engines used for flight... in the middle of paper... which is scarce. Oil, from which jet fuel is derived, is becoming so valuable because of its many uses, yet the supply dwindles every day and is not replenished. This situation must push us to use the oil still available wisely and to develop technology capable of extracting the maximum amount of energy from the minimum amount of oil used. General Electric managed not only to reduce fuel consumption, but at the same time to increase the amount of thrust. It's encouraging to see the new technology GE is developing to reduce fuel consumption and contamination from jet engines.Works CitedGE Aviation. http://www.geaviation.com/press/ge90/ge90_20130821.html. 21 August 2013. 23 March 2014.Warwick, Graham. http://www.aviationweek.com/Article.aspx?id=/article-xml/awx_06_17_2013_p0-588827.xml. June 17, 2013. March 23 2014.