The Digital Map Set is part of which system?

• A. Inertial Reference System.
• B. TAMMAC system.
• C. Radar Altimeter System.
• D. Flight Management System.

Answer: (B)

The Digital Map Set is the onboard map database used by the aircraft’s mission computer to display terrain, airspace, and navigation information. It belongs to the TAMMAC system because TAMMAC is the subsystem that manages mission data and displays, including loading and supplying map data to the cockpit displays and the mission computer. The other systems are sensor or navigation components that don’t host the map database: the Inertial Reference System provides attitude/position data from inertial sensors, the Radar Altimeter measures height above the terrain, and the Flight Management System handles flight planning and navigation logic, not the map data repository itself.