to be far more difficult than anticipated. The supplier problems ranged from language barriers to snafus that erupted when some contractors themselves outsourced chunks of work. An Italian company struggled for months to gain approval to build a fuselage factory on the site of an ancient olive grove. The first Dreamliner to show up at Boeing ’s factory was missing tens of thousands of parts‚ Boeing said. Today‚ the Dreamliner is at least six months late‚ and the goal of delivering 109 planes by the
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commercial Aircraft in the sky surpassing the 747 Jumbo Jet. Manufacture started in January 23rd 2002 (the 1st metal was cut on that day). Three continents took part in the manufacturing process; Germany (tail fin & the aft of the fuselage)‚ France (cockpit & the fuselage up to the mid-section)‚ Spain (tail cone & the elevators) and the United Kingdom (the wings). Its 1st flight was on 27th April 2005. Commercial service didn’t start until October 2007 with Singapore Airlines being its first
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precursors that were not acted upon. Multiple Air Directives (AD) had directed inspections and repairs targeting specific sections of the airplane‚ but had not looked at the airplane as a whole. FAA AD 872121-08 mandated inspection of lap splices at fuselage stringer 4. This AD did not recognize the risk of failing to mandate inspections of all lap splices‚ and only mandated inspections of the known unsafe condition. Boeing Alert Service Bulletin 737-53A1039 proposed inspection of all 737 lap joints
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they are still actively used. It was designed in a partnership between Saab and Fairchild with each company being responsible for certain aspects. Fairchild’s portin included the wings‚ engine housing‚ and empennage‚ while Saab handles the fin‚ fuselage‚ and final assembly. They agreed upon a General Electric CT7-5A2 engine and a Dowty Rotol 4 Bladed Composite propeller. This engine is just the commercial version of the General Electric T700 which was already being used to power military helicopters
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Aloha Airlines flight 243 underwent an explosive decompression in its passenger cabin at feet 24‚000. Although the aircraft underwent extensive structural damage‚ it was able to land safely. Investigations identified metal fatigue in the skin panel fuselage as proximate cause of accident due to poor maintenance. Nevertheless‚ the accident analysis revealed a more complex chain of causes‚ including aging of aircraft structure‚ structural design‚ maintenance methodology and safety regulatory failures
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incorporated into a sealed unit‚ which is capable of containing air under a pressure higher than outside atmospheric pressure. Pressurized air is pumped into this sealed fuselage by cabin superchargers‚ which deliver a relatively constant volume of air at all altitudes up to a designed maximum. Air is released from the fuselage by a device called an outflow valve. Since the superchargers provide a constant inflow of air to the pressurized area‚ the outflow valve‚ by regulating the air exit‚ is the
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improvised explosive device was used to blow up Flight 103. The evidence was moved to the AAIB’s headquarter in Farnborough Airfield (where it still remains) reconstruction of the fuselage. Once the reconstruction was done the investigators found that the area with a 20 inch squared whole on the left side on the lower fuselage and the skin had patterns that were consistent with an explosion. (Wikipedia) With further examination the investigators
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DRDO Science Spectrum‚ March 2009‚ pp. 4-11 DRDO SCIENCE SPECTRUM 2009 © 2009‚ DESIDOC Aircraft Performance Improvements-A Practical Approach S.K. Jebakumar Centre for Military Airworthiness and Certification‚ Marathalli Colony‚ Bangaluru- 560 037 ABSTRACT An aircraft is designed based on various wind tunnel testing‚ computational analysis‚ previous design experience etc. In most of the aircraft programs the design objective could not be met with the first prototype design itself. Before the
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Propulsion‚ Structures and materials‚ Stability and control. An overview on the design of a fixed wing aircraft: The structure of an aircraft is configured as follows: A fuselage is a long cylindrical body with tapered ends to make its shape aerodynamically smooth. Fuselage carries flight crew‚ passengers‚ payload‚ fuel and engine. Fuselage also holds a large wing which provides sufficient lifting force to the aircraft due to the shape of its cross section (aerofoil). This large wing has ailerons to control
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TABLE OF CONTENT INTRODUCTION This report looks through basic description of aircraft motions using standard terminologies such as stability‚ control and modes of flight. This also influences various controls and components on keeping the aircraft in its desired flight path with the aid of an explanation on the purpose of the design features of high-speed aircraft parts. Furthermore‚ as fluid dynamics refers to the relationship between fluid and an object‚ that is passing through it.
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