Auxiliary Power Plant Auxiliary Power Plant FundamentalsFundamentals

Lesson 4.1Lesson 4.1

C-601-3451

IntroductionIntroduction

Terminal ObjectiveTerminal Objective

4.0 - Using, in accordance with applicable 4.0 - Using, in accordance with applicable publications, the trainee will demonstrate publications, the trainee will demonstrate knowledge, in writing, the H53/CH46 Auxiliary knowledge, in writing, the H53/CH46 Auxiliary Power Plant (APP) and its related systems; to Power Plant (APP) and its related systems; to include theoretical troubleshooting, and given include theoretical troubleshooting, and given necessary publications, the trainee will necessary publications, the trainee will demonstrate the proper disassembly, demonstrate the proper disassembly, inspection, repair, and assembly of the APP inspection, repair, and assembly of the APP while observing pertinent safety precautions while observing pertinent safety precautions and applying operational risk management.and applying operational risk management.

Enabling ObjectivesEnabling Objectives

4.1 Select the description of the T-62T Engine.4.1 Select the description of the T-62T Engine.

4.2 Given a list of T-62T Engine models with 4.2 Given a list of T-62T Engine models with their characteristics, match each model to their characteristics, match each model to its characteristics.its characteristics.

4.3 Given a list of major engine assemblies and 4.3 Given a list of major engine assemblies and a list of purposes, match the component to a list of purposes, match the component to its purpose.its purpose.

Enabling ObjectivesEnabling Objectives

4.4 Given a list of components per each engine 4.4 Given a list of components per each engine assembly with their descriptions, match the assembly with their descriptions, match the correct component to its description.correct component to its description.

SafetySafety

Paramount atParamount atall timesall times

HazardousHazardousMaterialsMaterials

TTO is in effectTTO is in effect

Description T-62T EngineDescription T-62T Engine

Gas turbine engine Gas turbine engine

Single-shaft designSingle-shaft design

Compressor and turbine rotor are Compressor and turbine rotor are mounted back to back.mounted back to back.

T-62T-11T-62T-11

T-62T Models’ CharacteristicsT-62T Models’ Characteristics

T-62T-11T-62T-11

Used on the H-46 HelicopterUsed on the H-46 Helicopter

Weight (dry) is 69.50 lbs.Weight (dry) is 69.50 lbs.

65 shaft horsepower 65 shaft horsepower

56,695 RPM56,695 RPM

T-62T-11 LocationT-62T-11 Location

Rear of the Aircraft

T- 62T-27T- 62T-27

T-62T Models’ CharacteristicsT-62T Models’ Characteristics

T-62T-27T-62T-27

Used on the H-53 HelicopterUsed on the H-53 Helicopter

Weight (dry) is 83.40 lbs.Weight (dry) is 83.40 lbs.

100 shaft horsepower 100 shaft horsepower

61,248 RPM61,248 RPM

T-62T-27 LocationT-62T-27 Location

Above the cockpit

APP Major Assemblies with PurposesAPP Major Assemblies with Purposes

Reduction Drive AssemblyReduction Drive Assembly

Reduces the output rotational speed for Reduces the output rotational speed for engine accessoriesengine accessories

Combustor AssemblyCombustor Assembly

Houses the combustion processHouses the combustion process

APP Major Assemblies with PurposesAPP Major Assemblies with Purposes

Turbine AssemblyTurbine Assembly

Converts heat energy into mechanical Converts heat energy into mechanical energyenergy

APP Major AssembliesAPP Major Assemblies

Reduction Drive Assy Turbine Assy Combustor Assy

APP Assembly With Components APP Assembly With Components DescriptionsDescriptions

Reduction Drive AssemblyReduction Drive Assembly

Houses Engine Lubrication SystemHouses Engine Lubrication System

Contains Input Pinion, Gears and BearingsContains Input Pinion, Gears and Bearings

All Gears And Shafts Supported By Ball All Gears And Shafts Supported By Ball bearings (Except Oil Pump Drive Gear)bearings (Except Oil Pump Drive Gear)

APP Assembly With Components APP Assembly With Components DescriptionsDescriptions

Reduction Drive Assy.Reduction Drive Assy.

Houses Engine Houses Engine Lubrication SystemLubrication SystemContains Input Contains Input Pinion, Gears and Pinion, Gears and BearingsBearings

PinionGears

Bearings

All Gears And Shafts All Gears And Shafts Supported By Ball Supported By Ball bearings (Except Oil bearings (Except Oil Pump Drive Gear)Pump Drive Gear)

APP Assembly With Components APP Assembly With Components DescriptionsDescriptions

Turbine Assy.Turbine Assy.

Air Inlet

Air Inlet -Air Inlet -Provides Provides engine Intake engine Intake AirAir

Rotor AssyRotor Assy. -Rotor Assy. -

Mounts Mounts Rotating Rotating ComponentsComponents

Diffuser

Diffuser - Diffuser - Directs Directs Compressed Compressed Air To Air To CombustorCombustor

TurbineNozzle

Turbine Nozzle -Turbine Nozzle -Directs Gases Directs Gases Onto Turbine Onto Turbine BladesBlades

APP Assembly With Components APP Assembly With Components DescriptionsDescriptions

Combustor AssemblyCombustor Assembly

Combustor Housing - Houses All other Combustor Housing - Houses All other ComponentsComponents

Combustion Liner - Forms Path For Combustion Liner - Forms Path For Combustion With HousingCombustion With Housing

Nozzle Shield - Secured To Combustion Nozzle Shield - Secured To Combustion Liner. (T-62T-11 only)Liner. (T-62T-11 only)

Combustor Assy T-62T-27Combustor Assy T-62T-27

CombustionCombustionHousingHousing

CombustionCombustionLinerLiner

Summary and ReviewSummary and Review

Enabling ObjectivesEnabling Objectives

SafetySafety

Questions and AnswersQuestions and Answers

AssignmentAssignment

Assignment sheet 4-1-2Assignment sheet 4-1-2