2015/16 1st Semester Exam Review

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Semester Exam Review

Discovering Flight

Flight in Ancient Times

 Humans have dreamed of taking flight for thousands of years

 Flight is the act of passing through the air on wings

 People told tales about flight around the fire at night and handed down these stories to their children

Chapter 1, Lesson 1

Armen Firman

 A Moor named Armen Firman made the first known human attempt to fly

 He put on a huge cloak and jumped from a tower in Cordoba, Spain

 He hoped the cloak would open wide like a bat’s wings to slow him on the way down

 But it didn’t, and Firman fell to his death

Chapter 1, Lesson 1

Armen Firman

 His unfortunate experiment might be described as an early attempt at a jump by parachute

 A parachute is a device intended to slow free fall from an aircraft or another high point

Chapter 1, Lesson 1

Chinese Kites

 The Chinese invented the kite around

1000 BC

 A kite is a light framework covered with paper or cloth, provided with a balancing tail, designed to be flown in the air

 Within a few hundred years, people were using kites in warfare

Chapter 1, Lesson 1

Chinese Gunpowder

 In the eight hundreds, the Chinese made another important invention: gunpowder

 Gunpowder is an explosive powder made of potassium nitrate, charcoal, and sulfur, used to shoot projectiles from guns

 200 years later, the Chinese used gunpowder to make the first simple rockets

Chapter 1, Lesson 1

Man in the Moon

 There’s even a

Chinese legend about a rocket trip into space

 A legend is an unverified story handed down from earlier times

Wan Hoo

Leonardo da Vinci

 The first person in the history of aviation who was also a real scientist was Leonardo da Vinci (1452 –1519)

Chapter 1, Lesson 1

A Parachute and

A Helicopter

 Da Vinci produced the first known designs for a parachute and a helicopter

 A helicopter is an aircraft that gets its lift from spinning blades

 Da Vinci’s drawing of an “aerial screw” looks a lot like a modern helicopter

Chapter 1, Lesson 1

Sir Isaac Newton

 The Englishman

Sir Isaac Newton

(1643-1727) formulated three famous laws of motion

Chapter 1, Lesson 1

Taken from wikipedia.com

Newtonian Lift

 The third law states, “For every action, there is an equal and opposite reaction”

 For example, when a pilot angles the wing of the plane up against the oncoming wind, the action of the wind causes a reaction by the wing

 This reaction provides some additional lift, known as Newtonian or dynamic lift

Chapter 1, Lesson 1

The Early Days of Flight

The Early Days of Flight

Pages 14-25

 Team presentation evaluated against Rubric, possible 100 pts

 PowerPoint, Presi, or butcher paper graphics

 Presentation is to provide:

 Proper timeframe

 How individual got the idea for their invention or who they promoted it to

 What they built (provide illustration, graphic, or picture)

 Why significant to aviation (how contributes)

 Any battles or wars that were significant

 Montgolfier Brothers

 Alberto Santos Dumont

 Count von Zepplin

 Thaddeus Lowe

 Lt Col George Derby

 Sir George Cayley

 John Montgomery

 Otto Lilienthal

 John Stringfellow

 Samuel Langley

Principles of Balloon Flight

 A balloon operates on the principle of buoyancy

 If the air or gas inside a balloon is lighter than the air around it, it will float

 Hot air takes care of the first challenge of flight —getting up into the air

Chapter 1, Lesson 2

Courtesy of Clipart.com.

Dirigibles

 The third problem of flight —control of the craft —was still a problem

 That is, until inventors came up with the dirigible

 A dirigible is a steerable airship

Chapter 1, Lesson 2

Dirigibles

 The new dirigible airships had two things that helped pilots steer them

 First, they had rudders

 A rudder is a movable flap or blade attached to the rear of a craft

 Second, the new airships had power sources that drove propellers

Chapter 1, Lesson 2

Count von Zeppelin

 In July 1900 Count von Zeppelin, a German inventor, built and flew the first successful rigid dirigible , the LZ-1

 This led to the world’s first commercial airships

 The Zeppelins were luxurious:

 Roomy, wood-paneled cabins

 Carried 20 or more passengers

 They flew at speeds exceeding 40 miles an hour

Chapter 1, Lesson 2

Cayley’s Gliders

 Cayley identified three important aviation forces:

 Lift

 Drag , which is the pull, or slowing effect, of air on an aircraft

 Thrust , which is the forward force driving an aircraft

 In 1850 Cayley built the first successful fullsize manned glider

Chapter 1, Lesson 2

Otto Lilienthal

 Otto Lilienthal of Germany is often called the “Father of Modern Aviation ”

 Between 1891 and 1896 he made more than 2,000 glides

 He also developed a powered biplane

 A biplane is an aircraft with two main supporting surfaces, usually placed one above the other

Chapter 1, Lesson 2

Samuel Langley

 On 7 October 1903 his aircraft, the

Aerodrome was ready for a test flight

 The plane’s engine worked well, but the aircraft caught on the launching car on takeoff and fell into the river

 Two months later, Langley tried —and failed —again

 Government officials withdrew their support, so Langley gave up his project

Chapter 1, Lesson 2

Samuel Langley

 Historians fault Langley for spending too much time on how to power his aircraft, and not enough on how to control it

 Even so, for his contributions to aviation,

Langley Air Force Base in southeastern

Virginia is named after him

Chapter 1, Lesson 2

Courtesy of Senior Master Sgt. Keith Reed/the U.S. Air Force

The Wright Brothers

How the Wright Brothers

Succeeded in the First Flight

 The Wrights chose a glider as their starting point

 They could focus first on balancing and controlling the aircraft

 Power (an engine) could come later

 They applied what they learned at each step to make the next one go more smoothly

Chapter 2, Lesson 1

Step One:

Unmanned Box Kite

 They discovered that they didn’t need to tilt an entire wing to turn the craft:

 Needed to twist only the ends of the wings

 They called this process “wing warping ”

 In the summer of 1899, Wilbur Wright successfully tested the kite in a field

Chapter 2, Lesson 1

Step Two:

Manned Gilders

 Between 1900 and 1902, the brothers built three gliders

 Before putting a man aboard, they flew each glider like a kite

 They wanted to test it for control and lift

 Only after doing this would they put a man aboard

Chapter 2, Lesson 1

The First Glider (1900)

 In their experiments in 1900, the

Wrights placed an elevator at the front of the glider

 Earlier designers mounted elevators behind the wings

 But the Wrights found it easier to control climb and descent when the elevator was placed forward

Chapter 2, Lesson 1

The Second Glider (1901)

 The first glider didn’t have nearly enough lift

 So for their 1901 glider, the brothers increased the wing area to 290 square feet

 This glider was also a big disappointment

 The brothers couldn’t control it well when they tested it at Kill Devil Hills

 It flew less than 300 feet —time to return to

Dayton!

Chapter 2, Lesson 1

The Wind Tunnel

 The brothers built a wind tunnel in their bicycle shop to test model-size wings

 Made them of sheet steel

 Cut more than 200 model wings of different shapes

Chapter 2, Lesson 1

Courtesy of Wright State University

The Third Glider

 The third glider had:

 Forward elevator

 Elliptical shape

 Longer, skinnier wings

 Wing area of 305 feet

 Low angle of attack

 This design was a success

 The brothers took to the air in the North

Carolina dunes more than 700 times in the fall of 1902

Chapter 2, Lesson 1

Courtesy of NASA

Principles of Airplane Flight

 An engine and propellers gave Wilbur and Orville the ability to use not only lift but also thrust to propel their plane

 Vertically mounted propellers could provide the airflow for thrust

 They needed 90 pounds of thrust to propel the Wright Flyer

 Their 12-horsepower engine and the large propellers proved equal to the task

Chapter 2, Lesson 1

Wright Brothers’ Involvement

With the US Army

 The British and French governments were interested in buying the Flyer

 But the brothers wanted the US government to have the first crack at owning a Wright Flyer

 On 22 May 1906 they received a government patent for their invention

Chapter 2, Lesson 1

Bids for a Government Plane

 On 23 December 1907, Gen James

Allen sent out a request for bids to build a plane for the government

 The Wright Flyer met the bid requirements

 Orville Wright signed a contract on 10

February 1908 selling the Flyer to the

US government

Chapter 2, Lesson 1

Developing Aircraft

Ailerons

 An aileron is a small flap on the wing for controlling turns

 Ailerons replaced the Wright brothers’ wingwarping technique

 The aileron was a more effective means to move an aircraft left or right

 It also provided lateral balance

 The association introduced ailerons to

America but the idea originated in England

Chapter 2, Lesson 2

Louis Blériot

 French pilot Louis Blériot was the first man to cross the English Channel in a heavier-than-air craft

 Although Blériot encountered problems —he got lost and his engine overheated —he managed to land safely

 The flight took 37 minutes

Chapter 2, Lesson 2

Bessie Coleman

 Bessie Coleman faced two obstacles to becoming a pilot —her race and her gender; she overcame both

 In 1921 Coleman became the first black woman to get a pilot’s license

 She had to go to France for training because no flight school in the United States would accept her

 She died in an airplane crash only four years after getting her license

Chapter 2, Lesson 2

Air Power in World War I

Outbreak of WWI

 Because of alliances among different nations in Europe, one country after another soon declared war

The Allies The Central Powers

Russia

France

Serbia

Britain

Germany

Austria Hungary

Turkey

 Soon the Allies were at war against the

Central Powers http://www.history.com/this-day-in-history/archduke-franz-ferdinand-assassinated

The US Enters the War

 US President Woodrow Wilson vowed that the United States would remain neutral

 But over time, that proved impossible

 German U-boats targeted all American ships headed toward Britain

 Germany also made a secret deal with

Mexico

 The United States declared war on

Germany and entered World War I in April

1917

Chapter 2, Lesson 3

The Lafayette Escadrille

 Some American pilots didn’t wait for the United

States to join the war

 The French Foreign Legion could sign up these volunteers

 In April 1916 seven American pilots formed a small fighting group called Escadrille Américaine

 They had to change the name to the Lafayette

Escadrille

 By the time the United States Air Service brought the unit under its supervision in 1918, its pilots had made 199 kills https://www.youtube.com/watch?v=RcsdyyVsX-4

Edward Rickenbacker

 America’s ace of aces started out as a professional racecar driver

 Col William (“Billy”) Mitchell helped

Rickenbacker become a pilot

 Rickenbacker rose from an enlisted

Soldier to the rank of captain and took command of the 94th Squadron https://www.youtube.com/watch?v=9Attk7tAgt8

Eugene Bullard

 Bullard was the only African-

American to serve as a pilot during World War I

 Bullard signed up with the

French Foreign Legion in

October 1914

 He tried to join the US Air

Service, but the Army turned him down

 He shot down two German aircraft while in the French

Air Service

Chapter 2, Lesson 3

Stalemate

 By 1917, the war in Europe was at a stalemate

 A stalemate is a situation in which further action is blocked

 A force was needed to tip the balance one way or the other

 The Allies hoped that force would be the

United States, which joined the effort in April

Chapter 2, Lesson 3

The Role of Aircraft

 Until WWI, most people thought the role of aircraft in combat was limited to aerial reconnaissance

 Dropping bombs from the sky seemed an unlikely idea

 Conducting battles between squadrons of planes also seemed far-fetched

Chapter 2, Lesson 3

The Machine Gun

 Another WWI innovation was the airplanemounted machine gun

 French pilot Roland Garros was the first to bolt an automatic rifle to his plane

 The Germans asked Dutchman Anthony

Fokker to improve it —he built an interrupting gear

 But soon the Allies and the Central Powers were again on equal footing

 The famous dogfights commenced —a dogfight is a battle between fighter planes https://www.youtube.com/watch?v=Sd5ubG3HRi8

The Battle of Saint Mihiel

 September 1918: Air power played a tremendous role in this offensive

 Billy Mitchell commanded nearly 1,500

Allied airplanes

 The Allied pilots had two goals:

 To destroy German planes in the air

 To destroy German aircraft in hangars on the ground

 The Battle of Saint Mihiel helped lead to

Allied victory two months later

Chapter 2, Lesson 3

How the Airplane

Revolutionized War

 During WWI both sides sent up airplanes to shoot down observation aircraft

 Each side had to protect its observation aircraft

 Aerial combat was born

 Once machine guns were mounted on planes, pilots could use them to strafe soldiers on the ground

 To strafe is to attack with a machine gun from a low-flying aircraft

Chapter 2, Lesson 3

Fighters

 The fighter came into its own with the birth of the dogfight

 These fighter aircraft needed three qualities: they had to be lightweight, fast, and maneuverable

 By early 1918 fighters zipped along at a cool 130 mph

Chapter 2, Lesson 3

Future of Aviation

 Army staff officers still had their eyes focused on the infantry

 They had no plans for their aviation section

 But Brig Gen Billy Mitchell believed strongly in the future of aviation as an instrument in warfare

 Today’s US Air Force still considers Mitchell one of its founding fathers

Chapter 2, Lesson 3 https://www.youtube.com/watch?v=FvAG080spwk https:// www.youtube.com/watch?v=mIfuss_IbBY

Courtesy of the U.S. Air Force

The Barnstormers

The Barnstormers

 A barnstormer is a pilot who travels around the country giving exhibits of stunt flying and parachuting

 The term barnstorming comes from the time pilots would fly over a small rural town to attract attention, then land at a local farm https://www.youtube.com/watch?v=FI6STwhPCuI

Stunt Flying

 In the 1920s the term became attached to stunt flying

 Historians give stunt pilots like Bessie

Coleman credit for sustaining the aviation industry during its early years https://www.youtube.com/watch?v=wckEiKzCBqc

End of War

 On 14 November 1918, three days after the war ended, the US government canceled

$100 million worth of airplane contracts

 Within three months, 175,000 workers in the aircraft industry lost their jobs

 Aircraft production dropped by 85 percent

 The Army dumped its surplus warplanes onto the market

Chapter 3, Lesson 1

Former Army Pilots

 Many of the barnstormers were former

Army pilots

 Since military aviation had been cut back, a large number lost their jobs

 They leaped at the opportunity to keep flying

 These pilots enjoyed showing off the skills they had mastered in combat

Chapter 3, Lesson 1

Major Contributions of the Barnstormers

 Historians call the years between 1919 and 1939 the “golden age of aviation”

 Pilots set one record after another

 They flew faster and attained greater altitude the height above Earth’s surface

 They served as test pilots

Chapter 3, Lesson 1

Richard E. Byrd

 Trained as a flier, Rear Adm Richard

E. Byrd advanced both aviation and polar exploration

Richard E. Byrd

Barnstormers Contributed to

Public Awareness of Aviation

 The barnstormers’ demonstrations didn’t do away with people’s fears about flying

 After all, spectators sometimes saw dreadful accidents

 But the barnstormers’ air shows certainly created an interest in flight, even in rural areas and small towns

 They publicized the airplane and brought romance to flying

Chapter 3, Lesson 1

Chapter 1, Lesson 1

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