Avionic Engineer

December 5, 2017

|

Avionics Engineer

 

Avionic Engineer

December 5, 2017

|

Avionics Engineer

First of all,let me introduce my self I am Fizza Alina and the instistution where i am currently studying is PAF KIET  university. This is my first blog and its all about aerodynamics. we made some projects i.e Ornithopter, Rubber band glider, paper craft models. 

CONCEPT OF AERODYNAMICS:

 Aerodynamics is the study of airflow and its principles,aerodynamic concepts are also reflected in the simplest  flying objects and in the natural model for all studies of flight,like a bird's wings.

ORNITHOPTER:

An ornithopter is an aircraft that flies by flapping its wings. Designers seek to imitate the flapping-wing flight of birds. The first ornithopters capable of flight were constructed in France. Jobert in 1871 used a rubber band to power a small model bird.

So here is my first project of this course.

RUBBER BAND GLIDER:

Rubber-powered models are powered by the stored energy of a twisted elastic material. These range from the simple rubber-band powered toys available in many toy stores.The smallest rubber powered model aircraft was built in 1931 by a Philadelphia high school student, called the Flying Flea and was one and a quarter inches long and could remain airborne for approximately one minute..

so this is my second assignment its quite tricky but interesting as well.

here is the link for Instruction of rubber band glider:

www.rubber-power.com/instructions.

Avionic Engineer

December 5, 2017

|

Avionics Engineer

First of all,let me introduce my self I am Fizza Alina and the instistution where i am currently studying is PAF KIET  university. This is my first blog and its all about aerodynamics. we made some projects i.e Ornithopter, Rubber band glider, paper craft models. 

CONCEPT OF AERODYNAMICS:

 Aerodynamics is the study of airflow and its principles,aerodynamic concepts are also reflected in the simplest  flying objects and in the natural model for all studies of flight,like a bird's wings.

ORNITHOPTER:

An ornithopter is an aircraft that flies by flapping its wings. Designers seek to imitate the flapping-wing flight of birds. The first ornithopters capable of flight were constructed in France. Jobert in 1871 used a rubber band to power a small model bird.

So here is my first project of this course.

RUBBER BAND GLIDER:

Rubber-powered models are powered by the stored energy of a twisted elastic material. These range from the simple rubber-band powered toys available in many toy stores.The smallest rubber powered model aircraft was built in 1931 by a Philadelphia high school student, called the Flying Flea and was one and a quarter inches long and could remain airborne for approximately one minute..

so this is my second assignment its quite tricky but interesting as well.

here is the link for Instruction of rubber band glider:

www.rubber-power.com/instructions.

PAPER CRAFT MODEl:

This is also given us as an assignment we all are made different models of commercial and military 3D aircraft.. Here is the paper model of Boeing 737 which is my first paper craft model this paper craft is not completed yet but i upload some pics of my craft.

ARISH DEEP CONNECTION WITH AVIONICS AS BECOMING ENGINEER AT PAFKIET

1.   MY INTRODUCTION

        My name is Arish Khan and as doing Engineering currently BE AVIONICS at PAFKIET and this is my first blog well this blog is all information and material about avionics and aerodynamic of aircraft and I have learned until now. Every engineer have desire and infatuation in his or her field related to his or her same here I have also tantrum about fighter jet aircrafts and as well as commercial aircraft also.

JET FIGHTER

 COMMERCIAL AIRCRAFT

2. MY FAVORITE AIRCRAFT 

My favorite aircraft is Lockheed SR-71 "Blackbird". I like it very much because

The Lockheed SR-71 "Blackbird" is a long range,  Mach3+ strategic a that was operated by the united state air force USA.

 

 

Lockheed SR-71 "Blackbird"
Role
National origin	United States
Manufacturer	LOCKHEED STUNK WORKS division
Designer	KELLY JOHNSON
First flight	22 December 1964
Introduction	1966
Retired	1998 (USAF), 1999 (NASA)
Status	Retired
Primary users	USA NASA
Number built	32
Unit cost	$34 million
Developed from	Lockheed black bird

Lockheed SR-71 "Blackbird"

United States

LOCKHEED STUNK WORKS division

KELLY JOHNSON

22 December 1964

1966

1998 (USAF), 1999 (NASA)

Retired

USA
NASA

32

$34 million

Lockheed black bird

for more detail type the link

https://en.wikipedia.org/wiki/Lockheed_SR-71_Blackbird

 

INTRODUCTION TO AERODYNAMICS

Aerodynamics

Aerodynamics is the study of forces and the resulting motion of objects through the air.  
Studying the motion of air around an object allows us to measure the forces of lift, which allows an aircraft to overcome gravity, and drag, which is the resistance an aircraft “feels” as it moves through the air. Everything moving through the air (including airplanes, rockets, and birds) is affected by aerodynamics.

 

Shock Waves

What is a Shock Wave?

When an airplane travels less than the speed of sound, the air ahead of it actually begins to flow out of the way before the plane reaches it. The pressure waves created by the airplane passing through the air end up being smooth and gradual.

Vortex Drag

What are Those Whirls off the Wing Tips?

The spirals of air that trail off the tips of an airplane’s wings also contribute to drag. These wing tip vortices steal energy from the motion of the airplane, creating vortex drag.

Air in Motion

Flight Begins with Air in Motion

As an airplane moves through the air, its wings cause changes in the speed and pressure of the air moving past them. These changes result in the upward force called lift. To understand lift, you first have to understand how air (a gas) behaves under certain conditions.

Bernoulli Principle

Let's start with the Bernoulli principle. The Bernoulli principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in the pressure exerted by the fluid.

Pressure Drag

Why is Pressure Such a Drag?

Air flowing past an object pushes harder against the front than the back. This difference creates a backward force called pressure drag.

Does Drag Increase with Speed?

As an aircraft's speed increases, drag on the aircraft generally increases much faster. Doubling the speed makes the airplane encounter twice as much air moving twice as fast, causing drag to quadruple. Drag, therefore, sets practical limits on the speed of an aircraft.

How do you Reduce Pressure Drag?

The air pressure against the leading side of an object is higher than the pressure in the randomly churning eddies of the wake on the other side of it. Streamlining reduces this pressure difference.

What is Friction Drag?

Friction is the resistance that happens when two things rub together—like air against an airplane. Friction is partly what causes drag.

How Does Friction Work?

When an object moves through air, the air closest to the object’s surface is dragged along with it, pulling or rubbing at the air that it passes. This rubbing exerts a force on the object opposite to the direction of motion—friction drag.
The thin layer of air closest to the surface of a moving object is called the boundary layer. This is where friction drag occurs.

 FOUR SOURCES OF AERODYNAMICS

1 PRESSURE

2 DENSITY

3 TEMPERATURE

4 FLOW FIELD VELOCITY

3.   MY PROJECTS

 In my current course i have made some projects.

 

YOU CAN GET SOME HELP TO TRY YOUR GLIDER

 

I GOT PARTICIPATION CERTIFICATE IN MY AVIONICS COMPETITION

 A.   balsa rubber band glider

fuselage made by balsa lighter wood and with perfect propellers that operates by rubber 

I have compiled my balsa wood rubber band glider  and took a part in an avionics competition in my university pafkiet.

 

B.   ORNITHOPTER

 

 

 An ornithopter (from GREEK ornithos "bird" and pteron "wing") is an aircraft that flies by flapping its wings. Designers seek to imitate the flapping-wing flight of birds, bats, and insects.

 

 

 

I GOT PARTICIPATION CERTIFICATE IN MY AVIONICS COMPETITION

5.  PAPER  MODEL HELICOPTER  

 My paper model is to make high lift heavy weight lifter helicopter Chinook

The Boeing CH-47 Chinook is an American twin-engine, tandem rotor, heavy lift helicopter developed by American rotor craft company vertol and manufactured by Boeing vetrol. The CH-47 is among the heaviest lifting Western helicopters. Its name, Chinook, is from the native American Chinook people of modern-day Washington state.

i

I GOT PARTICIPATION CERTIFICATE IN MY AVIONICS COMPETITION

6. WORKSHOP OF RC PLANE CONSTRUCTION

 

 

 ROYAL AIR FORCE RED AERROWS

AS I ALSO JOINED ROYAL AIR FORCE PRESENTATION ON PAKISTAN

PAF PAKISTAN AIR FORCE AT PAF MEUSEUM CONVENTIONAL HALL

THAT WAS VERY COOL PRESENTATION

 

 

SOME VIDEOS ABOUT MY PROJECT AND YOU CAN GET HELP FROM MY VIDEOS.

 

IN THE END I WANT TO SAY THANKS TO ALL WHO READ OR SAW MY BLOG ABOUT AVIONICS AND AERODYNAMICS LIFE AT PAFKIET  I HOPE THAT YOU GOT A LOT OF KNOWLEDGE ABOUT AERODYNAMICS AND AVIONICS

YOU CAN GIVE FEEDBACK TO MY MAIL arishk103@gmail.com

ABOUT MY BLOG 

HOPE YOU ALL LIKE IT

THANKS