DRAG
FILL IN THE BLANK
TYPES OF INDUCED DRAG
DRAG EQUATION
Green
shields
project
100
what is drag when referring to an airplane?
An aerodynamic force that opposes an aircraft's motion through the air
100
FILL IN THE BLANKS: Three factors of Drag are the ____, the _____, and the ___.
The object, the Motion, and the Air.
100
Long, Thin wings
Low induced drag
100
What does the A stand for in the equation?
Reference Area
100
what age or grade was Jonny in when he came up with the idea for the buses?
Age 12/ 7th grade
200
what kind of force is Drag?
Mechanical
200
FILL IN THE BLANK: If there is no F____, there is no drag
Fluid
200
short wings with large chord
high induced drag
200
What does the V stand for in the equation?
Velocity
200
what university did Jonny spend a summer at when creating the Greenshilds Project?
Northwestern University
300
____ drag is caused by the formation of shock waves.
wave drag
300
FILL IN THE BLANK: If there is no M____, there is no drag.
Motion
300
Elliptical distribution of lift
minimum induced drag
300
what does the P stand for in the equation
Density
300
What can the Greenshields Project save nationwide? $6500 year cost each bus, 480,000 buses, $3,000,000,000 total cost, $600 savings each bus
$288,000,000
400
____drag is caused when free stream air is brought inside an aircraft.
Ram drag
400
FILL IN THE BLANK: Drag has both M_____ and D_____
Magnitude and Direction
400
winglets
Minimum induced drag.
400
What is the drag equation?
D=(Cd)(PxV^2/2)(A)
400
What is the percent of improvement for the fuel in the buses?
10-20%
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