Horizontal Situation Indicator: HSI-323A

The HSI-323A is a 3ATI panel-mounted, internally lighted Horizontal Situation Indicator that provides a pictoral display of the horizontal navigation situation, plus manual controls for course and heading selection.

The Model 323A is an excellent choice for tandem training missions that are directed to prepare student pilots to step into one of thousands of current high performance aircraft. Its conventional fixed-format display elements avoid the confusion that can be created when training is conducted on menu selected, multi-function displays, which at best, merely simulate the instrumentation in the target aircraft. Sunlight readability is not an issue with the Model 323A.

The Model 323A was originally designed for the Alpha-Jet tandem trainer and features Master/Slave modes which allow the instructor to monitor the student’s course selections. However, the design features multiple embedded processors that can be combined with custom firmware to facilitate customer specified operation for a variety of input signal formats from both the analog and digital domains