Aircraft Navigation & Magnetic Compass Trainer (Fundamental)


NAV-100A Aircraft Navigation & Magnetic Compass System Training Set is designed to teach the operational logic and system components of a navigation & magnetic compass. Trainees can operate a Navigation & Magnetic Compass system in this set and observe from indicator screen.

Trainer represents;

  • Aircraft Navigation,
  • Aircraft Communication,
  • Aircraft compass system

They can also learn maintenance principles.

This trainer also allows to perform practical tasks of EASA PART 147 ATA-34-20-01 / ATA-34-50-00.


  1. Fully functional and configured like a typical aircraft Navigation
  2. Fully functional and configured like a typical aircraft Magnetic Compass
  3. Compass System provides the pilot with a simple, comprehensive visual display of the aircraft’s heading and position in relation to a desired course.
  4. Complete slaved compass system that includes a magnetic slaving transmitter, a slaving control and compensator unit, a directional gyro for stabilization of the system, and the Pictorial Navigation Indicator (PNI) itself.
  5. Combine the display functions of the standard Directional Gyro with VOR/LOC course deviation indication and Glideslope deviation and flag into one compact display.
  6. The Pictorial Navigation Indicator provides a pictorial display of the horizontal navigation situation. Also provides manual controls for course and heading datum selections. Outputs from the system are for automatic pilot or flight director, VOR receivers and additional compass loads
  7. The Directional Gyro is a remote mounted unit which, in conjunction with the Magnetic Azimuth Transmitter, provides a gyro-stabilized magnetic heading to the system Indicator. In addition to the slaving circuitry this unit contains an internal power supply which provides excitation voltages for the Magnetic Azimuth Transmitter and positive and negative D.C. voltages for the Pictorial Navigation Indicator and the Slaving Accessory.
  8. The Magnetic Azimuth Transmitter senses the direction of the earth’s magnetic field and transmits this information to the Pictorial Navigation Indicator.
  9. The Slaving Accessory is a panel mounted unit which contains the slaving meter, slaving switches, and corrector circuitry which compensates for the effect of local magnetic disturbances on the Magnetic Azimuth Transmitter.
  10. The trainer should allow trainees to understand fundamentals of aircraft magnetic compass system and its components.
  11. The system mounted on a metal/aluminum mobile stand.
  12. Metal/aluminum frame with 4 wheels. 2 of 4 wheels are lockable.


  1. NAV/COM Device
  2. Pictorial Navigation Indicator (HSI)
  3. Directional Gyro
  4. Flux Detector (The Magnetic Azimuth Transmitter)
  5. Slaving Accessory
  6. NAV Antenna
  7. COM Antenna
  8. Digital instrument
  9. DC Power Box
  10. Circuit Breaker

Components Technical Specs

  1. NAV/COMM device
    • Solid state, gas discharge digital display NAV/COMM Transceiver
    • 720 or 760 frequency COMM available
    • 200-channel NAV receiver
    • Built-in VOR Converter
    • Maximum 25 kHz channel spacing (It should be 8.33 kHz)
    • Frequency (COM) range should be minimum 118.000 to 136.975
    • Nav receiver frequency range: 108.00 MHz to 117.95 MHz in 50 kHz increments
    • VOR/LOC converter accuracy:
    • VOR – Typical bearing error of less than 0.5° with precision track selector (2° max. error)
    • LOC–Typical centering error of less than 3μA (7μA max. error).
    • Receiver selectivity:
      • 6dB at 34.8 kHz minimum
      • 80dB at 84.0 kHz maximum
    • Input voltage range should be 14 or 28 VDC
    • Operating temperature range should be minimum -18 to +50 C
    • There should be Built-in VOR/Localizer converter in NAV/COMM device
    • VOR receiver displays to/from and radial
    • Active and standby flip-flop frequencies
    • Volume control
    • Frequency memory and recall
    • Display
    • Output should be minimum 10 watt
    • Frequency stability: ±0.0015%
    • Adjustable up to 100mW into 500 ohms headphones
    • 6dB bandwidth ± 8.1 kHz
    • 60dB bandwidth ± 20.0 kHz
    • Physical dimensions:
      • Width: 6.25 inches (15.88 cm) Height: 2.05 inches (5.21 cm) Depth: 10.16 inches (25.81 cm) including connector
    • There should be an original installation manual.
  2. Pictorial Navigation Indicator
    • Lubber Line
    • Nav Warning Flag
    • Heading Select Bug
    • Compass warning Flag
    • Selected Course pointer
    • To/From indicator
    • GS Deviation Scale
    • Compass Card
    • VOR/LOC Deviation Bar
  3. One (1) headset
    • 24 dB NRR hearing protection
    • 3.5mm Music input port
    • EM56 noise reflective cup mic
    • Clear Hear performance audio speakers
    • Foam Fit comfort ear seals
    • Deep Pocket ear canals
    • Wind block foam mic muff
    • Stainless steel adjustable headband
  4. Trainer should a DYNAMIC MICROPHONE
    • Impedance: 50-600 ohms.
    • Includes: 5 ft. coiled cord with right-angle plug and hanger bracket.
  5. Trainer should have VOR/LOC antenna
    • Frequency should be at least 108 to 118 MHz and 328-336MHz
    • Impedance should be 50 Ohms
    • Pattern should be Omni-Directional
    • Antenna should have an original cable
  6. Trainer should have VHF-COM antenna
    • Frequency 118 to 137 MHZ
    • Polarization and Vertical
    • Impedance 50 Ohms
    • Connector – BNC Female
    • Antenna should have an original cable
  7. Directional Gyro
    • Remote mounted
    • Original Mounted Tray
    • Power: 14-volt or 28-volt dc
    • 300-degree free turn able system for testing
  8. Flux Detector (The Magnetic Azimuth Transmitter)
  9. Slaving Accessory
    • Slave/Free Gyro Switch
    • Slaving Meter indicator
    • CW/CCW Adjustment
  10. Digital instrument for Gyro degree
    • Size: Min 7 inch
    • Touchable
    • Real Times
  11. Magnetic Compass

34-20-01- Magnetic Compass removal/Installation

NOTE: Avionics devices brand/model and some technical specs can be change
due to market availability.


  • User’s Manual
  • Study Guide
  • Instructor’s Guide
  • Device’s orijinal Manual
  • Device’s original Wiring Diagrams
  • Training video for teacher

Power Specs

  • Electrical box
  • Residual current device
  • Emergency Button
  • Energy Signal Lamp
  • 110 VAC 60 Hz or 220-240 VAC 50 Hz

Required Items

  • To effectively test the avionics on NAV-100A
    • Option-1 AV-500A NAV/COM tester check for specification refer AV-500A
    • Option-2 AV-500B NAV/COM tester check for specification refer AV-500B
    • Recommended NAV/COM Ramp Tester is AV-500A, if end user does not have
      any kind of NAV/COM tester


  • Instructor’s Panel Control Box for Scenario and Fault Simulation

Optional Items

  • To transmit and receive radio voice transmissions, if end user does not have any kind VHF radio
    • VHF radio Option-1 NAV-500A check for specification refer NAV-500A
    • VHF radio Option-2 NAV-500B check for specification refer NAV-500B