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C-601-3451. Auxiliary Power Plant Fundamentals. Lesson 4.1. Introduction. Terminal Objective.
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C-601-3451 Auxiliary Power Plant Fundamentals Lesson 4.1
Terminal Objective 4.0 - Using, in accordance with applicable publications, the trainee will demonstrate knowledge, in writing, the H53/CH46 Auxiliary Power Plant (APP) and its related systems; to include theoretical troubleshooting, and given necessary publications, the trainee will demonstrate the proper disassembly, inspection, repair, and assembly of the APP while observing pertinent safety precautions and applying operational risk management.
Enabling Objectives • 4.1 Select the description of the T-62T Engine. • 4.2 Given a list of T-62T Engine models with their characteristics, match each model to its characteristics. • 4.3 Given a list of major engine assemblies and a list of purposes, match the component to its purpose.
Enabling Objectives • 4.4 Given a list of components per each engine assembly with their descriptions, match the correct component to its description.
Safety • Paramount at • all times TTO is in effect Hazardous Materials
Description T-62T Engine • Gas turbine engine • Single-shaft design • Compressor and turbine rotor are mounted back to back.
T-62T Models’ Characteristics • T-62T-11 • Used on the H-46 Helicopter • Weight (dry) is 69.50 lbs. • 65 shaft horsepower • 56,695 RPM
T-62T-11 Location Rear of the Aircraft
T-62T Models’ Characteristics • T-62T-27 • Used on the H-53 Helicopter • Weight (dry) is 83.40 lbs. • 100 shaft horsepower • 61,248 RPM
T-62T-27 Location Above the cockpit
APP Major Assemblies with Purposes • Reduction Drive Assembly • Reduces the output rotational speed for engine accessories • Combustor Assembly • Houses the combustion process
APP Major Assemblies with Purposes • Turbine Assembly • Converts heat energy into mechanical energy
APP Major Assemblies ReductionDrive Assy Turbine Assy CombustorAssy
APP Assembly With Components Descriptions • Reduction Drive Assembly • Houses Engine Lubrication System • Contains Input Pinion, Gears and Bearings • All Gears And Shafts Supported By Ball bearings (Except Oil Pump Drive Gear)
APP Assembly With Components Descriptions Gears Pinion Bearings Reduction Drive Assy. Houses Engine Lubrication System Contains Input Pinion, Gears and Bearings All Gears And Shafts Supported By Ball bearings (Except Oil Pump Drive Gear)
APP Assembly With Components Descriptions Diffuser • Air Inlet - • Provides engine Intake Air • Diffuser - • Directs Compressed Air To Combustor Turbine Nozzle Rotor Assy • Turbine Nozzle - • Directs Gases Onto Turbine Blades • Rotor Assy. - • Mounts Rotating Components Air Inlet Turbine Assy.
APP Assembly With Components Descriptions • Combustor Assembly • Combustor Housing - Houses All other Components • Combustion Liner - Forms Path For Combustion With Housing • Nozzle Shield - Secured To Combustion Liner. (T-62T-11 only)
Combustor Assy T-62T-27 Combustion Housing Combustion Liner
Summary and Review • Enabling Objectives • Safety • Questions and Answers
Assignment • Assignment sheet 4-1-2