Avionics Bending: Inertial Navigation System (INS) - Part 5

Litton LTN-72RL Instrument Data

Worked on the implementation of the Instrument Data page. The instrument data page shows the INS data that is sent from the INS to the flight displays. There are still a bunch of challenges with the display refresh method ... i am thinking about using line blanking which is available to the CDU via a specific data label.

Litton LTN-72RL Data Field Examples

The instrument data page can show heading and track data as Magnetic or True. All speed data is shown in Knots. Here is the data page from the Litton manual showing the flow of ANS data to the HSI as well as the layout of the first 5 lines of the Instrument Data page:

Litton ANS Data and the HSI (from Litton LTN-72 Pilot Reference)

Litton LTN-72 Instrument Data Page (from Litton LTN-72 Pilot Reference)

Below is a short video showing the Instrument Data page in action: