Aerofoil characteristics - Types of drag –Drag reduction of airplanes-Induced drag-Chord wise and span wise pressure distribution - Aspect ratio, Camber and plan form characteristics - Drag polar. Steady level flight - Thrust/power available and required with altitude - Estimation of Maximum level flight speed - Conditions for minimum drag and minimum power required.
Maximum range - Minimum rate of skin a glide - Shallow angle of climb - Rate of climb – Time to climb and ceiling - Glide hodograph - Bank angle and load factor - Limitations on turn - Pull up and push over - The v-ndiagram. Range and Endurance of airplanes - Estimation of take-off and landing.
Degree of freedom of rigid bodies in space – Static and dynamic stability –Longitudinal stability – Stick fixed stability – Basic equilibrium equation – Stability criterion – Effects of fuselage and nacelle -Influence of CG location – Power effects – Stick fixed neutral point – Stick free stability-Hinge moment coefficient – Stick free neutral points-Symmetric maneuvers – Stick force gradients – Stick force per g – Aerodynamic balancing.
Dihedral effect –Lateral Control – Aileron power – Coupling between rolling moment and yawing moment –Adverse yaw – Aileron reversal. Static directional stability rudder fixed – Weather cocking effect – Rudder requirements – One engine inoperative conditions – static free directional stability – Rudder lock.
Introduction to dynamic longitudinal stability: – Modes of stability, effect of freeing the stick – Brief description of lateral and directional. Dynamic stability – Spiral, divergence, Dutch roll, auto rotation and spin.
Reference Book:
1. Nelson, R.C. ―Flight Stability and Automatic Control‖, McGraw Hill Education (India) Pvt Ltd, 8th Reprint Edition, 2011. 2. Etkin B., ―Dynamics of Flight Stability and Control‖, Wiley, New York, 3rd edition, 1995. 3. A.C Kermode., ―Mechanics of Flight‖ Prentice Hall, 11th edition, 2006. 4. Stengel, R.F. ―Flight dynamics‖ Princeton University Press, Princeton, N.J.,USA, 2004 5. J.J. Bertin, ―Aerodynamics for engineers‖ Prentice-hall, 6th edition, 2013.
Text Book:
1.Perkins, C. D., and Hage, R, E., ―Airplane Performance, Stability and Control‖, Wiley Toppan, Reprint edition, 2011. 2.L.J.Clancy, ―Aerodynamics‖, Pitman, Himalaya Publishing House, 3rd edition, 2006
