GAS TURBINE ENGINE WORKSHOP

Content

Weeks	Topics
1. Weeks	Engine fundamentals: Constructional arrangement and operation of turbojet, turbofan, turboshaft, turboprop, Safety rules, Demonstration of workshop/laboratory: tools, equipment, manuals
2. Weeks	Turboprop Engines: Gas coupled/ free turbine and gear coupled turbines, Reduction gearboxes, Integrated engine and propeller controls, Overspeed safety devices, Propellers, Boroscope Inspection, Hot Section Inspection
3. Weeks	Engine Starting and Ignition Systems: Operation of engine start systems and components, Maintenance safety requirement, APU: Purpose, operation, protective systems
4. Weeks	Turboshaft Engines: Arrangements, drive systems, reduction gearing, couplings, control system, Inlet Section: Compressor inlet ducts, Effect of various inlet configurations, Ice protection
5. Weeks	Compressors: Axial and centrifugal types, Constructional features and operating principles and applications: bleed variable inlet guide vanes, variable stator vanes, rotating stator blades, Combustion Section: Constructional features and principles of operation
6. Weeks	Compressors: Axial and centrifugal types, Constructional features and operating principles and applications: bleed variable inlet guide vanes, variable stator vanes, rotating stator blades, Combustion Section: Constructional features and principles of operation
7. Weeks	Turbine Section: Operation and characteristics of different turbine blade type, Blade to disk attachment, Nozzle guide vanes, Causes and effects of turbine blade stress and creep, Exhaust: Constructional features and principles of operation, Convergent, divergent and variable area nozzle types, Engine noise reduction
8. Weeks	Bearings and seals: Constructional features and principles of operation, Fuel Systems: Operation of engine control and fuel metering systems including electronic engine control ( FADEC ), systems lay-out and components
9. Weeks	Lubrication Systems: System operation/lay-out and components, Lubricants and Fuels: Properties and specifications, Fuel additives, Safety precautions
10. Weeks	Engine Air Systems: Air distribution, anti-ice, cooling and sealing, Power Augmentation Systems: Operation and applications, Water injection and water methanol systems, Afterburner systems
11. Weeks	Engine Indication Systems: Exhaust Gas Temperature/Interstage Turbine Temperature, Exhaust thrust indication: engine pressure ratio,engine turbine discharge pressure or jet pipe pressure systems, Oil pressure and temperature, Fuel pressure and flow, Engine speed, Vibration measurement and indication, Torque indication, Power, Fire Protection Systems: Operation of detection and extinguishing systems
12. Weeks	Engine Indication Systems: Exhaust Gas Temperature/Interstage Turbine Temperature, Exhaust thrust indication: engine pressure ratio,engine turbine discharge pressure or jet pipe pressure systems, Oil pressure and temperature, Fuel pressure and flow, Engine speed, Vibration measurement and indication, Torque indication, Power, Fire Protection Systems: Operation of detection and extinguishing systems
13. Weeks	Powerplant Installation: Construction of firewalls, cowlings, acoustic panels, engine mounts, connectors, wiring looms, anti-vibration mounts, hoses, pipes, feeder, control cables, and rods, lifting points and ains, Engine Storage and Preservation: Preservation and depreservation for the engines and accessories/systems
14. Weeks	Engine Performance: Gross thrust, net thrust, choked nozzle thrust, thrust distribution, resultant thrust, thrust horsepower, equivalent shaft horsepower, specific fuel consumption, Engine Efficiencies, By-pass ratio and engine pressure ratio, Pressure, temperature and velocity of the gas flow, Engine ratings, static thrust, influence of speed, altitude and hot climate, flat rating, limitations, Engine Monitoring and Ground operation: Procedures for starting and ground run-up, Interpretation of engine power output and parameters, Trend Monitoring (analysis, vibration and boroscope inspection), Inspection of engine components to criteria, tolerances and engine manufacturers specified data, Compressor washing and cleaning, Foreign Object Damage