Anna University
Department of Aeronautical Engineering
Fifth Semester
AE2301 Flight Dynamics
(Regulation 2008)
Nov / Dec 2013 Important Questions
UNIT-I
1. Types of drags and its reduction methods.
2. ISA layers, Troposphere, stratosphere derivation.
3. Obtain the values of pressure, density and temperature at 5 km in ISA.
UNIT-II
For unit-II may three types of questions will ask in your university exams.
TYPE-I
1.Derive the two equations given below and represent it graphically
2. An airplane is flying straight and level at a speed V which is ‘n’ timer the minimum power speed Vmp. Show that
3. For an aircraft in straight and level flight at a speed of ‘M’ derive the minimum drag speed. Show that
where D is drag of the aircraft.
4. An aircraft weighing 25 kN has a wing area of 80 m^2 and its drag coefficient is
calculate the minimum thrust required for straight and level flight, and the corresponding true air speed. At sea level and at 10 km (ρ= 0.58kg/m^3). Calculate also the minimum power required and the Corresponding true air speeds at the above conditions.
5.Drag polar for different speeds.
TYPE-II
1. V-n diagram.(Refer Aircraft performance book, pages 341-343)
2. Maneuvering, climbing, Gliding, and Turning flight performance.
TYPE-III
1. Range and Endurance equations.(Refer class notes)
2. Power available and power required curves.(Refer class notes)
UNIT-III
1. Wing contribution and wing with tail contribution derivations.
2. Problems taken w.r.t above derivations.
3. Stick-fixed and Stick-free stability derivatives.
4. Power effects for piston engine and jet engine airplanes.
UNIT-IV
For Unit-IV study all these theory questions.
One engine in-operative condition, Rudder lock and dorsal fin, coupling between rolling and yawing, Adverse yaw, Aileron reversal, Whether cocking effect, Rudder requirements.
UNIT-V
1. Stability derivatives , Routh’s discriminant derivations.
2. Phugoid motion, Spiral instability, Auto rotation, Spin and its recovery and Dutch roll.
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