AEROPLANE MANEUVERING AND CONTROL [some basic concepts] By PRANIBESH MANDAL Assistant Professor Dept. of Mechanical Engineering Jadavpur University HOW AIRPLANES FLY? Lift CL Wing cross section Aerofoil ANGLE OF ATTACK AIRPLANE MOVEMENT AND CONTROL AIRPLANE MOVEMENT AND CONTROL WORKING PRINCIPLE OF FLAPPERS Angle of attack (Normal) Relative Wind Lift in normal condition Flapper straight (Aerofoil in Normal Condition) Effective Angle of attack increases Relative Wind Flapper Down Lift increases Effective Angle of attack decreases Relative Wind Lift decreases Flapper Up ELEVATOR AND PITCH Relative Wind C.G. Effective Angle of attack negative Negative Lift Flapper Up AILERONS AND ROLL Effective Angle of attack decreases Relative Wind Lift decreases C.G. Effective Angle of attack increases Relative Wind Lift increases RUDDER AND YAW Effective Angle of attack Relative Wind C.G. Lift THANK YOU FLIGHT STABILITY erodynamic Centre: There exist a particular point on the chord line of an aero bout which the moment is independent of the angle of attack. The same point is he aerodynamic centre HOW TO ACHIEVE STABILITY AND BALANCE???? CONTRIBUTION OF TAIL CONTRIBUTION OF THE WING TO Mcg CONTRIBUTION OF THE WING TO Mcg CONTRIBUTION OF THE WING TO Mcg For wing body combination CONTRIBUTION OF THE TAIL TO Mcg CONTRIBUTION OF THE TAIL TO Mcg CONTRIBUTION OF THE TAIL TO Mcg TOTAL PITCHING MOMENT ABOUT C.G.