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Table of Contents:

1 . Fundamentals of Electricity



The Electron Theory 1
Static Electricity 3
Units of Electricity 4
Theory of Magnetism 6
Magnetic Devices 9
Methods of Producing Voltage 11
Electromagnetic Induction 11

2. Applications of Ohm's Law


Ohm's Law 13
Types of Circuits 16
Solving Series Circuits 17
Solving Parallel Circuits 20
Series-Parallel Circuits 23
Kirchhoff's Laws 26
Solution of a Resistance Bridge Circuit 27
Practical Applications of Ohm's Law 28

3. Aircraft Storage Batteries


Dry Cells and Batteries 30
Lead-Acid Storage Batteries 34
Lead-Acid Battery Maintenance Procedures 39
Battery Ratings 44
Nickel-Cadmium Storage Batteries 46
Nickel-Cadmium Battery Maintenance Procedures 50
Installation of Aircraft Batteries 52

4. Electric Wire and Wiring Practices


Characteristics of Electric Wire 56
Requirements for Open Wiring 62
Electrical Conduit 65
Connecting Devices 66
Bonding and Shielding 77
Wire Identification 78

5. Alternating Current


Definition and Characteristics 82
Impedance 87
Polyphase AC Circuits 92
Alternating Current and the Airplane 93

6. Electrical Control Devices


Switches 95
Circuit-Protection Devices 98
Resistors 100
Capacitors 102
Inductors 106
Transformers 108
Rectif iers 110
Transistors 115
Other Solid-State Devices 119
Printed Circuit Boards 122
Cathode-Ray Tube 123

7. Digital Electronics


The Digital Signal 126
Digital Numerology 127
Binary Code Systems 130
Logic Gates 133
Integrated Circuits 138
Common Logic Circuit Functions 142
Microprocessors 143
Computer Operations 144
Digital Aircraft Systems 150
Troubleshooting Digital Circuits 150

8. Electric Measuring Instruments


Meter Movements 159
The Ammeter 162
The Voltmeter 163
The Ohmmeter 165
AC Measuring Instruments 166
The Multimeter 169
Digital Meters 169
The Oscilloscope 171

9. Electric Motors


Motor Theory 175
Motor Construction 178
AC Motors 182
Inspection and Maintenance of Motors 188

10. Generators and Related Control Circuits


Generator Theory 190
DC Generator Construction 195
Starter-Generators 197
Generator Control 198
Generator Inspection, Service, and Repair 204 Vi Contents

11. Alternators, inverters, and Related Controls


AC Generation 210
Voltage Regulators 214
AC Generators 219
Inverters 223
Variable-Speed Constant-Frequency Power Systems 225

12. Power Distribution Systems


Requirements for Power Distribution Systems 228
Main Power Distribution Systems 232
Power Distribution on Composite Aircraft 235
Large-Aircraft Electrical Systems 237

13. Design and Maintenance of Aircraft Electrical Systems


Requirements for Electrical Systems 246
Aircraft Lights 249
Large-Aircraft Electrical Systems 255
Maintenance and Troubleshooting of Electrical Systems 263

14. Radio Theory


Radio Waves 276
Amplifiers 280
Functions of a Transmitter 282
Receivers 287

15. Communication and Navigation Systems


Communications 294
Navigation Systems 303
Long-Range Navigation Systems 317
installation of Avionics Equipment 327
Antennas 328

16. Weather Warning Systems


Radar 333
Digital Airborne Weather Radar Systems 337
Radar Maintenance 344
Weather Mapping Systems 345

17. Electric Instruments and Autoflight Systems


RPM-measuring Instruments 348
Temperature Indicators 349
Synchro Systems 352
Fuel-Quantity Indicators 353
Electromechanical Flight Instruments 355
Electronic Flight Systems 357
Automatic Flight Control Systems 361
Typical Automatic Pilot and Flight Control System 364
Automatic Flight and Landing Systems 366
Flight Management System 371
Strapdown Technology 373

Appendix

Glossary

Index