AERONAUTICAL ENGINEERING


AIRPLANE PERFORMANCE

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UNIT-I       GENERAL CONCEPTS:                                                                             

International Standard atmosphere, IAS, EAS, TAS, Propeller theory- Blade element theory, Propeller co-efficient, Use of propeller charts, Performance of fixed and variable pitch propellers, Effect of power plant on aircraft performance - variation of thrust and SFC with altitude, velocity & Mach number, High lift devices, Thrust augmentation.


UNIT-II          DRAG POLAR:                                                                                          

Streamlined and bluff body, Types of drag, Effect of Reynold’s number on skin friction and pressure drag, Drag reduction of airplanes, Drag polar, Effect of Mach number on drag polar, NACA Airfoils, Effect of Aspect ratio and sweep angle on lift and drag.


UNIT-III     STEADY LEVEL FLIGHT                    

Steady level flight, thrust required and Power required, thrust available and Power available for propeller driven and jet powered aircraft, Effect of altitude, maximum level flight speed, conditions for minimum drag and minimum power required, Effect of drag divergence on maximum velocity, Range and Endurance of Propeller and Jet airplanes.


UNIT-IV        GLIDING AND CLIMBING FLIGHT:                                          

Shallow and steep angles of climb, Rate of climb, Climb hodograph, Maximum Climb angle and Maximum Rate of climb- Effect of design parameters for propeller and jet aircrafts, Absolute and service ceiling, Cruise climb, Gliding flight, Glide hodograph.


UNIT-V          ACCELERATD FLIGHT:    

                                                                   

Estimation of take-off and landing distances, Methods of reducing landing distance, level turn, minimum turn radius, bank angle and load factor, Constraints on load factor, pull up and pull down maneuvers, maximum turn rate, V-n diagram.