Eskisehir Technical University Info Package Eskisehir Technical University Info Package
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About the Program Educational Objectives Key Learning Outcomes Course Structure Diagram with Credits Field Qualifications Matrix of Course& Program Qualifications Matrix of Program Outcomes&Field Qualifications
  • Faculty of Aeronautics and Astronautics
  • Department of Avionics
  • Course Structure Diagram with Credits
  • Aircraft Instrument Systems I
  • Description
  • Description
  • Learning Outcomes
  • Course's Contribution to Prog.
  • Learning Outcomes & Program Qualifications

Course Introduction Information

Code - Course Title HEE453 - Aircraft Instrument Systems I
Course Type Required Courses
Language of Instruction Türkçe
Laboratory + Practice 2+0
ECTS 3.0
Course Instructor(s) DOKTOR ÖĞRETİM ÜYESİ NEVZET KAYA, DOKTOR ÖĞRETİM ÜYESİ NEVZET KAYA, DOKTOR ÖĞRETİM ÜYESİ NEVZET KAYA
Mode of Delivery The mode of delivery of this course is face-to-face.
Prerequisites There is no prerequisite or co-requisite for this course.
Courses Recomended It is suggested for students to take HEE318 Basic Electronics III course/courses.
Recommended Reading List TTS, FAA Books
Assessment methods and criteria 1 Midterm, 1 Final Exam
Work Placement None
Sustainability Development Goals

Content

Weeks Topics
Week - 1 Aircraft Indicating Systems – General: Variable resistance systems, DC Selsyn systems, synchros (direct torque systems, control transformer, differential synchro), resolvers, LVDT’s, RVDT’s, servo systems and servo loops.
Week - 2 Pressure Measurement Principles and Instruments: Pressure definitions and their measurement: absolute, gauge and differential pressure; Mechanical sensors and systems: diaphragms, pressure capsules, aneroid capsules, bourdon tubes, bellows; Electrical sensors and systems: strain gauges, piezo-resistive sensors, variable frequency generating system with a capacitance.
Week - 3 Temperature Measurement Principles and Instruments: Non-electrical temperature measurements: liquid expansion, gas pressure, bimetal strip; Electrical temperature measurement: PTC and NTC temperature dependent resistors, temperature sensing bulb, ratiometer circuits, Wheatstone Bridge circuits, thermocouples, CHT and EGT measurement.
Week - 4 Fuel Quantity Indication Systems: Mechanical indicators: direct reading tubes, float and magnet; DC electrical indicators: float and ratiometer, magnetic float and reed switches; Capacitive indicators: capacitance, dielectricity, reactance, measuring circuits, calibration for temperature and dielectricity changes; Digital fuel quantity indicating system; Analogue and digital cockpit indications (circuits and displays); Fuel Flow Indication Systems: Transmitters types: vane, turbine, impeller, differential pressure; Safety and CDL requirements. Angle of Attack and Stall Warning Systems: Angle of attack (AOA) definition; AOA sensing and indications: vane and pressure probe type sensors, cockpit indications; AOA effect on stall condition; Stall warning systems: buzzer (reed), vane and micro-switch, stall strip. Engine Vibration Measurement: Principle of operation, cockpit indication.
Week - 5 Gyroscopic Instruments: Rigidity, precession, degrees of freedom; Basic gyro elements: rotor and gimbals; Electrical and air driven rotors; Gyro types: vertical gyro, directional gyro, rate gyro, rate integrating gyro; Apparent drift and topple.
Week - 6 Attitude Indicator (Artificial Horizon): Description, use and operating principles of the instrument; Rotor, gimbals, horizon bar, indicator, pitch and roll indication; Gyro erection: with balls, pendulous vanes, levelling switches and torque motors; Remote Artificial Horizon; Acceleration and turning errors.
Week - 7 Directional Gyro: Description, use and operating principles of the instrument; Rotor, gimbals, horizon bar, indicator, old style (compass type) and vertical card heading indication; Slaving of directional gyro (automatic and manual) ; Gyro Wander: Real wander, apparent wander, correction with latitude nut, transport drift.
Week - 8 Rate Gyro: Description, use and principles of operation; Rotor and gimbal; Turn and slip indication. Turn Coordinator Indicator: Description, use and principles of operation; Turn coordination indication, Gyro Powering Systems: Electric motors, pneumatic systems, comparison of electrical and air driven gyros (advantages and disadvantages). Magnetic Compass: General magnetism concepts: source of magnetism, magnetic forces and moments; Earth’s magnetic field: poles, inclination, variation.
Week - 9 Magnetic Compass: Aircraft magnetism: source of magnetism on an aircraft, hard iron magnetism, soft iron magnetism, components of aircraft magnetism, compass deviation and its compensation, EASA limits, compass swing; Direct reading compass: general description and principle of operation, compass requirements, elements, pre-flight checks; Acceleration and turning errors, other errors (index, one cycle, two cycle).
Week - 10 Gyro Compass (Slaved Gyro): Flux valve, slaving gyro, light aircraft compass systems, MD-80 compass system, manual synchronization, remote compensator, new technology.
Week - 11 Gyro Compass (Slaved Gyro): Flux valve, slaving gyro, light aircraft compass systems, MD-80 compass system, manual synchronization, remote compensator, new technology.
Week - 12 Practical Application at Hangar: General safety precautions for working in a hangar and/or workshop; Safety precautions and principles of removing, disassembling, re-assembling, maintenance and installation of aircraft instruments; Introducing instruments and electric-electronic equipments on the aircraft.
Week - 13 Practical Application at Hangar: Carrying out, helping or observing the removing, disassembling, re-assembling, maintenance, calibration and/or installation of at least one of the physical quantity (pressure, temperature, fuel quantity, rpm, etc.) indicators and one of the gyroscopic aircraft instruments.
Week - 14 Practical Application at Hangar: Carrying out, helping or observing the removing, disassembling, re-assembling, maintenance, calibration, installation or compass swing procedure of a direct reading compass or gyro-compass.

Learning Activities and Teaching Methods

  • Teaching Methods
  • Lecture
  • Discussion
  • Question & Answer
  • Competences
  • Productive
  • True to core values
  • Rational
  • Questoning
  • Creative
  • Follow ethical and moral rules
  • Civic awareness
  • Effective use of Turkish
  • Environmental awareness
  • Effective use of a foreign language
  • Problem solving
  • Concern for quality
  • Information Management

Assessment Methods

Assessment Method and Passing Requirements
Quamtity Percentage (%)
1.Midterm Exam 1 40
Final Exam 1 60
Toplam (%) 100
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