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Flight Mechanics

Core Topics:
Atmosphere: Properties, standard atmosphere. Classification of aircraft. Airplane (fixed wing aircraft) configuration and various parts;
Airplane performance: Pressure altitude; equivalent, calibrated, indicated air speeds;
Primary flight instruments: Altimeter, ASI, VSI, Turn-bank indicator. Drag polar; takeoff and landing; steady climb & descent, absolute and service ceiling; cruise, cruise, climb, endurance or loiter; load factor, turning flight, V-n diagram; Winds: head, tail & cross winds;
Static stability: Angle of attack, sideslip; roll, pitch & yaw controls; longitudinal stick fixed & free stability, horizontal tail position and size; directional stability, vertical tail position and size; dihedral stability. Wing dihedral, sweep & position; hinge moments, stick forces;

Special Topics:
Dynamic stability: Euler angles; Equations of motion; aerodynamic forces and moments,
stability & control derivatives; decoupling of longitudinal and lateral-directional
dynamics; longitudinal modes; lateral-directional modes.


Core Topics:
Strength of Materials:
States of stress and strain. Stress and strain transformation. Mohr’s Circle. Principal stresses. Three-dimensional Hooke’s law. Plane stress and strain; Failure theories: Maximum stress, Tresca and von Mises; Strain energy. Castigliano’s principles. Analysis of statically determinate and indeterminate trusses and beams. Elastic flexural buckling of columns.
Flight vehicle structures: Characteristics of aircraft structures and materials. Torsion,
bending and flexural shear of thin-walled sections.
Loads on aircraft.
Structural Dynamics: Free and forced vibrations of undamped and damped SDOF
systems. Free vibrations of undamped 2-DOF systems.

Special Topics:

Vibration of beams.
Theory of elasticity: Equilibrium and compatibility equations, Airy’s stress function.


Core Topics:
Basic Fluid Mechanics:
Conservation laws: Mass, momentum (Integral and differential
form);Potential flow theory: sources, sinks, doublets, line vortex and their superposition;
Viscosity, Reynolds number.
Airfoils and wings: Airfoil nomenclature; Aerodynamic coefficients: lift, drag and
moment; Kutta-Joukoswki theorem; Thin airfoil theory, Kutta condition, starting vortex;
Finite wing theory: Induced drag, Prandtl lifting line theory; Critical and drag divergence Mach number.
Compressible Flows: Basic concepts of compressibility, Conservation equations; One
dimensional compressible flows, Fanno flow, Rayleigh flow; Isentropic flows, normal
and oblique shocks, Prandtl-Meyer flow; Flow through nozzles and diffusers.

Special Topics:
Elementary ideas of viscous flows including boundary layers; Wind Tunnel Testing:
Measurement and visualization techniques.


Core Topics:
Thermodynamics, boundary layers and heat transfer and combustion thermo-chemistry.
Thermodynamics of aircraft engines: Thrust, efficiency and engine performance of
turbojet, turboprop, turbo shaft, turbofan and ramjet engines, thrust augmentation of
turbojets and turbofan engines. Aerothermodynamics of non-rotating propulsion
components such as intakes, combustor and nozzle.
Axial compressors: Angular momentum, work and compression, characteristic
performance of a single axial compressor stage, efficiency of the compressor and
degree of reaction.
Axial turbines: Axial turbine stage efficiency
Centrifugal compressor: Centrifugal compressor stage dynamics, inducer, impeller and
Rocket propulsion: Thrust equation and specific impulse, vehicle acceleration, drag,
gravity losses, multi-staging of rockets. Classification of chemical rockets, performance
of solid and liquid propellant rockets.

Space Dynamics:

Core Topics:
Central force motion, determination of trajectory and orbital period in simple cases.
Special Topics:
Orbit transfer, in-plane and out-of-plane.