a. Write a note on dynamic pressure and aerodynamic heaHng. (5)
b. Derive the expression for induced drag. (4)

a. Draw lift curve, drag curve and lift-drag ratio curve and explain.the effect of

AoA on them. What is the significance of L/D ratio? (5)

b. Distinguish between centre of pressure and aerodynamic centre. How do
they vary with angle of attack? (4)

PART C

a. What are the various control surfaces used in aircraft? Explain their operation.

(6)

b. Define longitudinal static stability. What are the conditions to be satisfied

to ensure the longitudinal static stability of an aircraft? (6)

a. What is wind tunnel? What are the different types of wind tunnels?

Explain the working of a typical wind tunnel with suitable sketches.

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c. What is meant by high lift devices? What are different types of high lift devices?
(4+4+4)

a. Write notes on launch vehicles and NAVs?

b. Explain the terms swept wing, dihedral angle and canard.

c. What is the function of flap? Explain the function of any three types of
flap.