Airflow And Aerofoils Flashcards
1
Q
What is the chord line?
A
Straight line from leading edge to trailing edge
2
Q
Mean camber line
A
A line joining the leading edge and trailing edge crossing the midpoints of the upper and lower surfaces.
3
Q
Angle of attack
A
Angle between the chord line and the relative airflow (usually 2-4°)
4
Q
What’s the stall angle value?
A
12-16°
5
Q
relative airflow?
A
Always acts in opposite direction to the flight path
6
Q
Angle of incidence
A
Angle between chord line and longitudinal fuselage datum.
7
Q
Formula for fineness ratio
A
FR=C/T
8
Q
Thickness to chord ratio formula
A
TCR=(T/C)x100
