AT-10 ​Aircraft HSI System Trainer

All modern military and commercial aircraft are equipped with Horizontal Situation Indicator (HSI) to provide a consolidated display to a pilot for more efficient cockpit resource management. Model AT-10 Aircraft HSI System Trainer is designed to provide hands-on training on a real and operational equipment approved for aircraft installation. The equipment is mounted on a mobile workstation containing Horizontal Situation Indicator, with bootstrap Directional Gyro, Flux Valve, Slaving Accessory, and installation kits.Aircraft quality electrical shielded wiring, cables, connectors, and harness assemblies are installed. All interconnections are of aircraft quality electrical shielded wiring, cables, connectors, and harnesses. The workstation includes a test panel console for testing of HSI System equipment.

Using Model AT-10, Avionics Instructors can effectively teach students on installing, removing, and testing a complete Horizontal Situation Indicator (HSI) system. Students also develop proper understanding and learn how to troubleshoot the equipment.




Model AT-10 can be integrated with our Models AT- 20, AT-21, AT-22, and AT-23 for enhanced training features covering the integration of various avionics equipment in aircraft cockpit. This is a unique feature not available from any other manufacturer of avionics trainers. The system can be upgraded to include an EFIS display by adding appropriate interfaces, a control unit, and symbol generator.

Functional Specifications:

Remote mounted compass system consisting of KI-525A Pictorial Navigation Indicator, KG-102A Directional Gyro, KMT-112 Magnetic Azimuth Transmitter, and KA-51A/B Slaving Accessory.The KI-525A provides a pictorial display of the horizontal navigation situation and also provides manual controls for course and heading datum selection. It also provides outputs for autopilot or flight director,VOR receivers, and additional compass loads.
Magnetic Heading and course information from VOR/LOC, GPS, Loran, or RNAV is combined on the KI-525A
KI-525A includes dual glide-slope pointers which are in view only during an ILS approach
KA-51B provides selectable "slaved gyro" or "free gyro" modes which enables manual slaving capability.


  • Durable, steel frame, Vertical standing panel with sturdy casters
  • Wood shelf
  • Accessories storage case
  • Adjustable height equipment panels
  • Adjustable height test panel
  • Avionics panel complete with Honeywell KCS55A system
  • Power Supply with voltage and current meters,power cord
  • Installation and mounting kit


  • Technical Reference Manuals
  • Students’ Manual
  • Wiring diagram

Computer Based Training:

Model AT-10 can be supplied with CBT covering the relevant topics, for an additional cost.

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