Auxiliary Power Plant Fundamentals C-601-3451 Auxiliary Power Plant Fundamentals Lesson 4.1

Introduction

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-11

T-62T Models’ Characteristics 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-27

T-62T Models’ Characteristics 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 Reduction Drive Assy Turbine Assy Combustor Assy

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 Pinion Gears Bearings Reduction Drive Assy. All Gears And Shafts Supported By Ball bearings (Except Oil Pump Drive Gear) Houses Engine Lubrication System Contains Input Pinion, Gears and Bearings

APP Assembly With Components Descriptions Diffuser Diffuser - Directs Compressed Air To Combustor Turbine Assy. Air Inlet Air Inlet - Provides engine Intake Air Rotor Assy Rotor Assy. - Mounts Rotating Components Turbine Nozzle Turbine Nozzle - Directs Gases Onto Turbine Blades

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

BREAK