Aircraft Axes And The Wing Flashcards
1
Q
What is the normal axis?
A
Yaw
2
Q
What is the lateral axis?
A
Pitch
3
Q
What is the longitudinal axis?
A
Roll
4
Q
What does planform mean?
A
Describes the top-down shape of the wing
5
Q
Different types of wings
A
- Rectangular
- Tapered
- Elliptical
- Swept
6
Q
Taper ratio
A
Taper ratio = Tip chord / root chord
7
Q
What will always be the value for taper ratio?
A
1 or <1
8
Q
Rectangular wing aspect ratio
A
= Span / chord
9
Q
Swept wing aspect ratio
A
= Span^2 / area
10
Q
What is the mean geometric chord?
A
Average chord length
11
Q
What is the mean aerodynamic chord (MAC)?
A
- The chord of an imaginary rectangular wing
- Creates pitching moment and has same span as the tapered wing
12
Q
Sweep angle
A
- The angle that a wing is inclined to the lateral axis
- Increasing sweep angle = Increases A/C speed
13
Q
Angle of incidence
A
Angle between chord line and long axis
