Drag Flashcards
1
Q
How is drag produced?
A
The airplane moving through the air, drag is produced in the direction of the relative wind
2
Q
What is induced drag?
A
Drag resulting from lift
3
Q
What is parasite drag?
A
The drag caused from the structure of the aircraft moving through the air
4
Q
How does form drag (parasite) increase with airspeed?
A
It increases approximately at a x^2 relationship
5
Q
What is interference drag?
A
Drag caused by the friction of intersecting parts of the airplane
6
Q
What is the source of induced drag from lift?
A
The wingtip vortices
7
Q
How does induced drag relate to angle of attack?
A
As angle of attack increases, induced drag increases because the wingtip vortices increase
8
Q
What is the aspect ratio?
A
Ratio of the length of the wing (x) to the width of the wing (y) OR x/y
