What does the Left DDI (LDDI) do?

What does the Left DDI (LDDI) do?

• A. Only shows engine data.
• B. Controls aircraft weapons.
• C. Displays radar range.
• D. Night vision image system compatible; During normal operation it provides any of the displays selectable from the TAC or SUPT menu.

Answer: (D)

The left Direct Display Interface is a flexible cockpit display that can show a variety of information pages, not just a single data stream. It’s designed to be NVIS-compatible, meaning its output is readable when pilots are using night vision goggles. In normal operation, you can select which display page the left DDI shows from the TAC (Tactical) or SUPT (Supervisor/Support) menus. That makes it a versatile viewing surface: you can bring up engine data, radar information, navigation data, or other cockpit displays as needed for the current phase of flight or mission. So this display isn’t limited to engine data, nor does it directly control weapons or be restricted to radar range. Its purpose is to provide a selectable, NVG-friendly view of multiple cockpit displays.

The left Direct Display Interface is a flexible cockpit display that can show a variety of information pages, not just a single data stream. It’s designed to be NVIS-compatible, meaning its output is readable when pilots are using night vision goggles.

In normal operation, you can select which display page the left DDI shows from the TAC (Tactical) or SUPT (Supervisor/Support) menus. That makes it a versatile viewing surface: you can bring up engine data, radar information, navigation data, or other cockpit displays as needed for the current phase of flight or mission.

So this display isn’t limited to engine data, nor does it directly control weapons or be restricted to radar range. Its purpose is to provide a selectable, NVG-friendly view of multiple cockpit displays.