WorksheetsAERODYNAMICS
Total questions: 37
Worksheet time: 24mins
Founder of Aerodynamics.
Sir George Cayley
Mongolfier Brothers
Otto Lilienthal
Octave Chanute
Samuel P. Langley
Most famous work - Hering/Chanute biplane glider
Sir George Cayley
Mongolfier Brothers
Otto Lilienthal
Octave Chanute
Samuel P. Langley
Built full size flying machine called aerodrome catapulted from top of a house boat.
Sir George Cayley
Mongolfier Brothers
Otto Lilienthal
Octave Chanute
Samuel P. Langley
Built controllable gliders using body shifts. Made more than 2,000 glider flights.
Sir George Cayley
Mongolfier Brothers
Otto Lilienthal
Octave Chanute
Samuel P. Langley
invented the free flight of a hot air balloon.
Sir George Cayley
Mongolfier Brothers
Otto Lilienthal
Octave Chanute
Samuel P. Langley
Dec 17, 1903 - Orville Wright, at Kitty Hawk NC, in a 12-second flight of 120 feet. (Wilbur Wright had tried three days earlier, and failed to get airborne; however, he made the second flight this historic day for about 850' in 59 seconds.)
Sir George Cayley
Wright Brothers
Otto Lilienthal
Octave Chanute
Samuel P. Langley
is a science that deals with the study of fluids in motion, their characteristics
(a)
The physical forces they exert in bodies immersed in them
(a)
•usable atmosphere for aerodynamics
Up to 100,000 ft or 16 NM ASL
At 200,000 ft or 33 NM
•force per unit area. Decreases with altitude.
•PRESSURE
•DENSITY
•TEMPERATURE
•VISCOSITY
•mass divided by volume. Decreases with altitude.
•PRESSURE
•DENSITY
•TEMPERATURE
•VISCOSITY
•measure of random molecular movement at a point. Decreases from troposphere to stratopause.
•PRESSURE
•DENSITY
•TEMPERATURE
•VISCOSITY
•measure of substances resistance to being deformed.
•PRESSURE
•DENSITY
•TEMPERATURE
•VISCOSITY
The wing produces lift because….
it is flying at an angle of attack
of circulation
of Bernoulli's Principle
of Newton’s laws of motion
All of the above
the component of Aerodynamic Force perpendicular to the relative wind.
opposes aircraft weight.
increases with angle of attack to a certain point.
LIFT
WEIGHT
DRAG
THRUST
the component of Aerodynamic Force parallel to the relative wind.
opposes thrust.
LIFT
WEIGHT
DRAG
THRUST
The force directed downward from the center of mass of the airplane towards he center of the earth.
LIFT
WEIGHT
DRAG
THRUST
TYPES OF DRAG
INDUCED/AERODYNAMIC DRAG
FORM DRAG
SKIN FRICTION DRAG
INTERFERENCE DRAG
FORM INDUCED DRAG
Determines the best range glide and speed for maximum range cruise (ALL CAPS)
(a)
Aerodynamic Quantities
wing span / wing chord
Aspect ratio
Wing loading
Load factor
Aerodynamic Quantities
weight / wing area
Aspect ratio
Wing loading
Load factor
Aerodynamic Quantities
lift / weight
Aspect ratio
Wing loading
Load factor
Boundary Layer Theory
A thin layer adjacent to the surface, where only viscosity dominates called
(a)
Boundary Layer Theory
An inviscid flow outside this boundary layer throughout called
(a)
is a vehicle heavier than air, powered by engine, which travels through the air by reaction of passing air over its wings.
(ALL CAPS)
(a)
Devices used to increase the curvature and sometimes the area of the wings which significantly increase low-speed lift with little drag penalty during take-off and landing.
(a)
is the tendency of the aircraft to return to its original position after being displaced
(a)
•the initial tendency of the aircraft to return to its original position after it has been displaced
Static Stability
Dynamic Stability
the tendency of the aircraft to return to its original position over a period of time
Static Stability
Dynamic Stability
(Static Stability)
•the a/c initially tends to return to its original position
Positive
Negative
Neutral
(Static Stability)
•the a/c initially tends to displace farther from its original position
Positive
Negative
Neutral
(Static Stability)
the a/c remains in the new position
Positive
Negative
Neutral
(Dynamic Stability)
•the a/c will oscillate with each oscillation dampening so that the a/c returns to its original position
Positive
Negative
Neutral
(Dynamic Stability)
•the a/c oscillations maintain the same magnitude
Positive
Negative
Neutral
(Dynamic Stability)
the a/c oscillations increase in magnitude
Positive
Negative
Neutral
•The point at which all the weight is considered to be concentrated at
(a)
•With normal CG, a/c will be nose-heavy
•This is offset by horizontal stabilizer position…it has a negative AOA
•This pushes the horizontal stabilizer downward…negative lift on tail…which pushes nose upward
(a)
