1. Auxiliary Power Plant FundamentalsC
Auxiliary Power Plant Fundamentals
Lesson 4.1

2. Introduction

3. Terminal Objective
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.

4. 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.

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

6. Safety
Paramount at
all times
TTO is in effect
Hazardous
Materials

7. Description T-62T Engine
Gas turbine engine
Single-shaft design
Compressor and turbine rotor are mounted back to back.

8. T-62T-11

9. T-62T Models’ Characteristics
Used on the H-46 Helicopter
Weight (dry) is lbs.
65 shaft horsepower
56,695 RPM

10. T-62T-11 Location
Rear of the Aircraft

11. T- 62T-27

12. T-62T Models’ Characteristics
Used on the H-53 Helicopter
Weight (dry) is lbs.
100 shaft horsepower
61,248 RPM

13. T-62T-27 Location
Above the cockpit

14. APP Major Assemblies with Purposes
Reduction Drive Assembly
Reduces the output rotational speed for engine accessories
Combustor Assembly
Houses the combustion process

15. APP Major Assemblies with Purposes
Turbine Assembly
Converts heat energy into mechanical energy

16. APP Major Assemblies
Reduction Drive Assy
Turbine Assy
Combustor Assy

17. 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)

18. 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

20. 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

21. 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)

22. Combustor Assy T-62T-27
Combustion
Housing
Combustion
Liner

23. Summary and Review
Enabling Objectives
Safety
Questions and Answers

24. Assignment
Assignment sheet 4-1-2

25. BREAK