Glider Power Point Project

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Glider Power Point Project
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Compare and Contrast

• A glider is different from a jet because a glider
  doesnt have an engine. It flies by the lift of
  the glider so when you roll it down a hill it
  generates enough lift to fly.
• The glider and the jet are the same by a glider
  gets drag too and so does a jet.
• But a jet has a motor engine and makes thrust to
  resist drag.

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What is a

• Drag To move slowly or with effort.
• Thrust A driving force or pressure
• Lift to rise or to ascend
• Aerodynamics dynamics of bodies moving relative
  to gases especially the interaction of moving
  objects with the atmosphere.

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What is gravity?

• Gravity the natural force that tends to draw
  things together or keep them together. (like us
  staying on the ground instead of floating around
  like in space)

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Thrust

• Thrust A driving force or pressure

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Camber

• Camber a slightly arched surface of the wing,
  important because controls the plane if it goes
  up or down
• The camber is the arched part of the wings on the
  left and right side.

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Why is a Dihedral Angle important?

• It is important because it is the angle that each
  wing makes with the horizontal wing.
• The purpose of dihedral is to improve lateral
  stability.
• It is also important, if the left wing gets low
  or drops, the angle will make a force that makes
  the plane level again.

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Daniel Bernoulli

• He was the one who discovered facts about
  flights.
• The forces around the plane that makes the plane
  stay in flight. Like the high pressures on top of
  the plane and the low pressure on the bottom of
  the plane.
• Like the lift, thrust, drag and gravity.

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Kill Devil Hills, NC

• Kill Devil Hills is located near the outer banks
  of North Carolina.
• They selected this site because it has high winds
  and its away from people.
• They tried many times and failed, but they got it
  just right. For hundreds of tries they did, they
  finally got it right.

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Wind Tunnel

• A wind tunnel is a structure resembling a tunnel.
• It is used for testing airplane parts. They do
  it by blowing velocities of air in the tunnel to
  test the plane.

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Modern Gliders

• A modern glider will look weird to people a
  hundred years ago.
• Today it has long wings. It has long wings
  because so the wings can get an updraft of heat
  to raise up the glider.
• The glider is small and long because it can be
  swiftly fly or glide cause it doesnt have an
  engine.

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How is a glider launched

• There at least two ways to launch a glider.
• I will tell you one of them is when another
  plane tows the glider and releases it in the air
  to start gliding.
• The other is go on a cliff go downhill and roll
  down and if it generates enough lift it will fly.

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Gliders and Thermals

• Why do gliders like thermals? OK
• Ill tell you, gliders like thermals because it
  is the invisible force of hot air rising from the
  ground. That makes the glider glide for long
  periods of time.

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Gliders in WW 2

• Gliders were used in WW 2 by transporting
  soldiers in the front lines.
• They also transported jeep, mortars and many
  other stuff like supplies.
• They tow the planes just like now and they just
  let it glide.
• They used it because it is cheap and inexpensive.

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The sites

• http//travel.howstuffworks.com/glider2.htm
• www.dictionary.com
• http//www.allstar.fiu.edu/aero/axes33.htm
• http//schools.tdsb.on.ca/parkdaleps/Foster-211/fl
  ight/introflight.html
• http//www.first-to-fly.com/History/Wright20Story
  /inventin.html
• http//www.grc.nasa.gov/WWW/K-12/airplane/guided.h
  tml