This document provides an overview of aircraft wings, including their:
- Historical development from ancient kites to the Wright brothers' fixed-wing aircraft.
- Construction, with internal structures like ribs, spars, stringers, and skin covering the framework. Wings also contain fuel tanks, flaps, and other devices.
- Functions, as wings generate lift through Bernoulli's principle and critical angle of attack. Wing design factors like aspect ratio and camber also affect lift.
- Types based on position (fixed or movable) and structure (cantilever or strut-braced). Stability devices like ailerons and flaps are also described.
- Unconventional designs that
Structural detailing of fuselage of aeroplane /aircraft.PriyankaKg4
This presentation is about the structural detailing of fuselage of aeroplane .The fuselage or body of the airplane, holds all the pieces together. The pilots sit in the cockpit at the front of the fuselage. Passengers and cargo are carried in the rear of the fuselage. Some aircraft carry fuel in the fuselage; others carry the fuel in the wings.
Nomenclature and classification of controls in an airplane (slide # 3-4).
Which are the aerodynamic forces acting on airplane (slide # 5).
Working principle of an airplane (slide # 6).
How an airplane flies (basic motions of an airplane) (slide # 7).
How controls play their roles in these motions (slide # 8-22).
Simulate a flight in Cessna Skyhawk (slide # 23-28).
References and Questions & answers (slide # 30).
Structural detailing of fuselage of aeroplane /aircraft.PriyankaKg4
This presentation is about the structural detailing of fuselage of aeroplane .The fuselage or body of the airplane, holds all the pieces together. The pilots sit in the cockpit at the front of the fuselage. Passengers and cargo are carried in the rear of the fuselage. Some aircraft carry fuel in the fuselage; others carry the fuel in the wings.
Nomenclature and classification of controls in an airplane (slide # 3-4).
Which are the aerodynamic forces acting on airplane (slide # 5).
Working principle of an airplane (slide # 6).
How an airplane flies (basic motions of an airplane) (slide # 7).
How controls play their roles in these motions (slide # 8-22).
Simulate a flight in Cessna Skyhawk (slide # 23-28).
References and Questions & answers (slide # 30).
This Powerpoint Presentation reviews on the topic - Aeroplane and Its Parts (With aerodynamics).
It was made for Educational Purpose.
If anyone want source file, E-mail:- moideenthashreef@hotmail.com
INTRODUCTION:
While a helicopter is a far more complex machine than an aeroplane, the fundamental principles of flight are the same.
The rotor blades of a helicopter are identical to the wings of an aeroplane –when air is blown over them, lift is produced.
The crucial difference is that the flow of air is produced by rotating the wings – or rotor blades – rather than by moving the whole aircraft.
When the rotor blades start to spin, the air flowing over them produces lift, and this can cause the helicopter to rise into the air.
So, the engine is used to turn the blades, and the turning blades produce the required lift.
Classification of Aircraft | Flight Mechanics | GATE AerospaceAge of Aerospace
For Video Lecture of this presentation: https://youtu.be/aBS7J69WKpQ
The topics covered in this session are, Classification of aircraft based on various methods of classification. General classification chart and other kinds of aircraft classification.
Attention! "Gate Aerospace Engineering aspirants", A virtual guide for gate aerospace engineering is provided in "Age of Aerospace" blog for helping you meticulously prepare for gate examination. Respective notes of individual subjects are provided as 'Embedded Google Docs' which are frequently updated. This comprehensive guide is intended to efficiently serve as an extensive collection of online resources for "GATE Aerospace Engineering" which can be accessed free of cost. Use the following link to access the study material
https://ageofaerospace.blogspot.com/p/gate-aerospace.html
This Powerpoint Presentation reviews on the topic - Aeroplane and Its Parts (With aerodynamics).
It was made for Educational Purpose.
If anyone want source file, E-mail:- moideenthashreef@hotmail.com
INTRODUCTION:
While a helicopter is a far more complex machine than an aeroplane, the fundamental principles of flight are the same.
The rotor blades of a helicopter are identical to the wings of an aeroplane –when air is blown over them, lift is produced.
The crucial difference is that the flow of air is produced by rotating the wings – or rotor blades – rather than by moving the whole aircraft.
When the rotor blades start to spin, the air flowing over them produces lift, and this can cause the helicopter to rise into the air.
So, the engine is used to turn the blades, and the turning blades produce the required lift.
Classification of Aircraft | Flight Mechanics | GATE AerospaceAge of Aerospace
For Video Lecture of this presentation: https://youtu.be/aBS7J69WKpQ
The topics covered in this session are, Classification of aircraft based on various methods of classification. General classification chart and other kinds of aircraft classification.
Attention! "Gate Aerospace Engineering aspirants", A virtual guide for gate aerospace engineering is provided in "Age of Aerospace" blog for helping you meticulously prepare for gate examination. Respective notes of individual subjects are provided as 'Embedded Google Docs' which are frequently updated. This comprehensive guide is intended to efficiently serve as an extensive collection of online resources for "GATE Aerospace Engineering" which can be accessed free of cost. Use the following link to access the study material
https://ageofaerospace.blogspot.com/p/gate-aerospace.html
In this document of Theory of Flight
we are discussing some topics in detail which are:
Intereference drag
Induced drag
Factors that Affects Induced Drag:
Stabilator
All these topics are discussed in detail hope you like it................
A helicopter is an aircraft that is lifted and propelled by one or more horizontal rotors, each
consisting of two or more rotor blades. The main objective of this seminar topic is to study the basic
concepts of helicopter aerodynamics. The forces acting on helicopter i.e. lift, drag, thrust and weight
are considered for developing analytic equations. The main topics that are discussed include blade
motions like blade flapping, feathering and lead-lag. The effect of stall on helicopter blade flapping is
studied and it was noticed that there is a sudden lift drop at this stall condition. It was also found that
dynamic stall occurs due to rapidly changing angle of attack, which inturn affect the air flow over the
airfoil. Blade flapping angle and induced angle of attack are the main parameters concerned with stall.
The theory behind blade element analysis has been inferred in detail. The importance of all these in the
present scenario are also taken into consideration
Avionics-Unit I
Study Materials
Need for avionics in civil and military aircraft and space systems – integrated avionics and weapon systems – typical avionics subsystems, design, technologies – Introduction to digital computer and memories.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
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Data file handling has been effectively used in the program.
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Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
4. HISTORICAL BACKGROUND
The Ancient Chinese :
Kites with curved surfaces flew better than kites
with flat surfaces.
Leonardo da Vinci, 1486-1490:
The idea of strapping a pair of wings to arms fail out of
favor & replaced by the concept of wing flapped up & down.
5. Lilienthal and Cayley:
In the 1800s, demonstrated that a curved surface
produces more lift than a flat surface
Wilbur and Orville Wright:
Construction of fixed wing aircraft and use of
ailerons. Material used is Spurce. Discovery of
wind tunnels.
6. What is Wing?
“A wing is a type of fin with a surface that
produces aerodynamic
force for flight or propulsion through
the atmosphere, or through another
gaseous or liquid fluid. As such, wings have
an airfoil shape, a streamlined cross-sectional shape
producing lift”.
7. How Lift is Generated ?
The basic principle behind an lift is described by
Bernoulli's theorem.
“Air that travels over the top surface of the airfoil has
to travel faster and thus gains dynamic pressure. The
subsequent loss of static pressure creates a pressure
difference between the upper and lower surfaces that is
called lift and opposes the weight of an aircraft (or
thrust that opposes drag)”.
As the angle of attack (the angle between the chord line
and relative air flow) is increased, more lift is created.
Once the critical angle of attack is reached (generally
around 14 degrees) the airfoil will stall.
8.
9. WING CONSTRUCTIONAL
INTRODUCTION
Wing construction is similar in most modern
aircraft. In its simplest form, the wing is a
framework made up of spars and ribs and
covered with metal. The construction of an
aircraft wing is shown in figure.
11. Internal Structure of
Wing(Contd.)
Ribs: The parts of a wing which support the covering and
provide the airfoil shape.
Spar: Running span wise at right angles (or thereabouts
depending on wing sweep) to the fuselage.
Stringers: A strip of wood or metal to which the skin of an
aircraft is fastened
12.
13. Internal Structure of Wing(Contd.)
Skin: The outer surface of the wing. Originally made of
fabric, modern aircraft use aluminum or composite materials
due to their lightweight and rust-resistant properties.
Fuel Tank: Commonly located in the wing, fuel can either be
housed in its own tank or allowed to fill the cavities between
the ribs.
Flaps: Are a “high lift / high drag” device. Not only do they
improve the lifting ability of the wing at slower speeds by
changing the camber, or curvature of the wing, they also
create more drag, meaning an aircraft can descend, or lose
altitude faster, without gaining airspeed in the process.
14. Internal Structure of Wing(Contd.)
Root: The wing root is the portion of the wing that
attaches to the fuselage, or body of the aircraft.
Wing Tip: The wing tip is furthest from the fuselage and
is typically where the navigation lights are mounted (a
red light on the left, a green light on the right).
Slats: Another “high lift” device typically found on swept
or delta wing aircraft. Slats are similar to the flaps
except they are mounted on the leading edge of the
wing. They also assist in changing the camber to improve
lifting ability at slower speeds.
15.
16. Aspect Ratio: The ratio of the wing’s length to its chord
line.
Camber: The name given to the curvature of the upper or
lower surfaces of the wing.
Chord Line: The theoretical line running from the leading
edge of the wing to the trailing edge.
Leading Edge: The front edge of an aircraft’s wing.
Trailing Edge: The rear edge of an aircraft’s wing.
Wing Construction & Mathematics
22. Aileron:
Ailerons increase or decrease lift asymmetrically, in order
to change roll and, thus, move the aircraft left or right
while flying. Ailerons are hinged sections fitted at the rear
of each wing
Stability Devices on Wings
23. Stability Devices on Wings(Contd.)
Flaps:
Flaps are devices used to alter the lift characteristics
of a wing and are mounted on the trailing edges of
the wings of a fixed-wing aircraft to reduce the speed
at which the aircraft can be safely flown and to
increase the angle of descent for landing. They shorten
take off and landing distances. Flaps do this by
lowering the stall speed and increasing the drag.
24.
25. Airfoil
Leading Edge = Forward edge of the aerofoil
Trailing Edge = Aft edge of the aerofoil
Chord = Line connecting the leading and
trailing edge. Denotes the length of the
aerofoil
Mean Camber Line = Line drawn half way
between the upper and lower surface of the
aerofoil. Denotes the amount of curvature of
the wing
Point of Maximum Thickness
= Thickest part of the wing
expressed as a percentage of the chord
Airfoil: It is the shape of a wing or blade (of a propeller,
rotor, or turbine) or sail as seen in cross-section.
29. SOME UNCONVENTI0NAL
DESIGNS
Drawbacks of Conventional Wings:
A. Higher control power required.
B. Incurring extra drag and fuel consumption increases.
C. At high angles of attack stall problems occurred.
D. Flap deployment causes nose down pitching
moments which must be overcome by elevator
and/or horizontal tail deflection causing the overall
maximum lift to go down.
30. Features of some unconventional
designs
The canard (forward lifting surface)
is lifting.
Weight savings since the
horizontal tail is eliminated.
Savings in drag which will
result in better speed and
range characteristics (lower
fuel consumption).