Horizontal Situation Indicators

The Astronautics Horizontal Situation Indicators (HSI), available in 3”, 4”, and 5” sizes, provide the pilot with heading, course, single or dual bearing pointers, remote or manual heading and course pointers, DME readouts, glide slope, to/from arrows, and warning flags. Basic inputs to the instruments are obtained from the external gyros, inertial navigation systems, attitude & heading reference system, radio receivers, and navigation/weapon delivery computers. These HSI instruments have been provided for more than 120 aircraft types including the F-16, F-15, A-10, F-14, F-117, AV-8, Mirage, T-38, PC-9, Hawk, C-130, P-3, Dauphin, Super Puma, Puma, A-109, A-119, B-212, B-412, AH-1, UH-60, AH-64, C-101, F-5, B-1, B-52, and many other aircraft.

  • Magnetic Compass Heading from Master Directional Reference
  • Command Heading Information from rotation of Heading Set Knob
  • Command Course from rotation of Course Set Knob or servo positioned from a remote source
  • Bearing information to Select Station displayed by Bearing Pointer
  • Course Bar indicating Lateral Displacement of Aircraft from Selected Track
  • To/From Indication from a Selected Radio Facility
  • Course-Bar Flag Alarm
  • Range Readout
  • Front mounted
  • HEA Coated Glass
  • Proven reliability
  • Established logistics support
  • Minimal obsolescence issues
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