why is it that variable wing geometry aircraft do not exist anymore ....etc

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Abstract
Mounting engines on the wing causes complex wing
flutter characteristics. The location of the engine mass
and the stiffness of the pylon relative to the wing are
important in preventing hazardous wing flutter. In
addition, if the nacelles are installed over the wing,
aerodynamic interference between the wing and the
nacelle may cause unfavorable flutter characteristics, in
particular, at transonic speeds. The flutter
characteristics of an over-the-wing engine mount
configuration obtained from theoretical analyses and
....etc

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Detection of corrosion damage in aircraft wing skin structures is an ongoing NDT challenge. Ultrasonic methods are known and well-accepted techniques, which are relatively simple to carry out in terms of setup, probes and instrumentation and operator training. However, with conventional inspection from the top surface using a transducer at normal incidence (0o to the normal to the surface) producing a visual picture in the form of a C-scan, it is very tie consuming to point-by-point inspects large aircraft wing skin areas. In addition it is too ....etc

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1.The unit of solid angle is
A)radianB) steradian
C) degreeD) none of the above

2.What is the temperature co-efficient value of aluminum at 20° Celsius ?
A)40.3x10“*B) 40.3x1 O'3
C) 40.3x10_zD) 40.3 x10'5

3.How to increase the current range of a meter ?
A)A low resistance connected in series
B)A high resistance connected in series
C)A low resistance connected in parallel
D)A high resistance connected in parallel

4.One ampere-hour is equal to
A)36000 Coulombs C) 360 Coulombs
B) 3600 Coulombs D) 36 Coulo ....etc

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HI,
I am a student from malaysia, i am currently do a project about fabrication of aircraft, i think this will be helpful to me. Hope that you can help me as soon as possible. ....etc

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INTRODUCTION
CAUSE OF CORROSION – MOISTURE, WATER, CRACKS
AREAS AFFECTED – SURFACE, LAP JOINTS, FASTENERS
3. NEED OF NDT
NON DESTRUCTIVE TESTS (NDT)
VISUAL INSPECTION
MAGNETIC PARTICLE TEST
LIQUID (DYE) PENITRATION TEST
X – RAY PENETRATION INSPECTION
EDDY CURRENT INSPECTION
ULTRASONIC INSPECTION
DEFECTS OF CONVENTIONAL SYSTEMS
INSPECTION FROM TOP NORMAL TO SURFACE
2. TIME CONSUMING FOR POINT TO POINT INSPECTION
3. INABILITY TO DETECT (a) DISBONDS IN MULTILAY ....etc

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i want to know the result of west bengal state lottery dewali bumper result 28.10.2014 top ten ....etc

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diwali bumper west bengal state lottery draw on 28/10/2014 result need.
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Advantages of inflatable wings

High aspect ratio
High durability
We can change the value of CL
Can be packed and deployed numerous times
Wing can recover shape in flight even if the load limit is exceeded
Impact absorption and impact resiliency


Applications
Military applications
1.border patrol
2. surveillance and inspection.
Commercial applications
1. airborne observation of crops
2. inspection of pipelines and power lines.
3.mapping of particular area
Space research
....etc

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Abstract
Active Aeroelastic Wing (AAW) Technologyrepresents a new design approach for aircraft wingstructures. The technology uses static aeroelasticdeformations as a net benefit during maneuvering.AAW is currently being matured through a flightresearch program1; however, transition of thetechnology to future systems will require educatingdesigners in multiple disciplines of this new designapproach. In order to realize the full benefits of AAW,aeroelastic effects will need to be accounted for fromthe beginning of the design process. Co ....etc

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