Aeroplane Axes And The Wings (Chapter 8)

Question 1

Wing Taper (Definition)

Answer 1

This is when the chord at the tip of the wing is shorter than the chord line at the root of the wing.

Question 2

Taper Ratio (Equation)

Answer 2

Taper Ration = tip chord/root chord

Question 3

Dihedral wing design

Answer 3

This is when the wing has a positive upwards bend in it’s natural shape. This also means that the wing tip(s) are higher than that of the wing roots. E.g. B787

Question 4

Anhedral Wing Design

Answer 4

This is when the wings shape naturally bends downwards. Therefore the wing tips are lower than that of the wing roots. E.g. Bae146

Question 5

Sweep Angle

Answer 5

The Sweep angle is the angle at which an A/C’s wings are swept rearwards

Question 6

Rigging Angle

Answer 6

This is when the wing root is angled slightly positively so that there is a greater angle of incidence