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34 Cards in this Set
- Front
- Back
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A bird generates what by flapping its wings?
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Lift
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Who flew into the sun with wings of wax?
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Icarus
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First reported "manned aircraft"?
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1299 A.D, Marco Polo saw Chinese sailors attached to kites being used as observers
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The first true powered flight?
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Hot air balloon in France, brothers Joseph and Etienne Montgolfier created the balloon, Rozier and Arlandes flew it on a 25 min flight over Paris (Nov 21, 1783)
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Pressure of a fluid drops when when it is accelerated, known as the what?
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Bernoulli Principle
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1st law of motion
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An object at rest will remain at rest unless acted upon by an unbalanced, outside force
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2nd law of motion
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A force acting upon a body causes it to accelerate in the direction of the force and inversely proportional to the mass of the body being accelerated (F=M x A)
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3rd law of motion
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For every action there is an equal and opposite reaction
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Theory of equal transit time
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Molecules moving over and under an airfoils wing meet at the same time
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The upper surface of a wing is designed with a curvature called?
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Camber
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A line drawn from the leading edge to the trailing edge of a plane_______
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Chord
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What is relative wind?
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Wind created while moving through the air, it moves in the opposite direction
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As air flows towards the wing it splits at the______
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Leading edge
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Air going over and downward of a wing is called what?
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Downwash
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What is the coanda effect?
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The tendency of a fluid stream to be attracted to a nearby surface
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Four forces that act upon the airplane
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Lift, Gravity, Thrust, and drag
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Three axis of an airplane
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Vertical, Longitudinal, and Lateral
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Movement along the Vertical axis is also known as
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Yaw
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Movement along the Longitudinal axis is also known as
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Roll
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Movement along the Lateral axis is also known as
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Pitch
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What controls the pitch?
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The elevator
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What controls yaw?
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The rudder
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What controls roll?
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The ailerons
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The average rate st which temperature decreases with an increase in altitude?
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Lapse Rate
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What is the average lapse rate
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3.5 degrees F for every 1000ft of altitude
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A column of rising air that moves upwards
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Thermal
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Vertical velocity indicator
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Variometer
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An aircraft that uses lighter than air gas for its lift
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Balloon
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To rise or float on the surface of water or within the atmosphere
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Buoyancy
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The top of the hot air balloons envelope
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The crown
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The main body of the balloon, usually made of nylon
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Envelope
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Gondola
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The wicker basket hanging at the bottom of a hot air balloon
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Montgolfier
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Name of the two french brothers who created the first successful, manned, hot air balloon in 1783
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Thermistor
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Measures temperature
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