What roles do the primary and secondary flight displays serve in the TH-73?

• A. Navigation only and systems monitoring
• B. Critical flight information and mechanical status
• C. Critical flight information and navigation/system status
• D. Mechanical status only and mission planning

Answer: (C)

The primary and secondary flight displays in the TH-73 are designed to provide essential information that ensures safe operation and effective navigation during flight. The primary flight display is dedicated to presenting critical flight information, such as altitude, airspeed, attitude, and other vital parameters that pilots need for controlling the aircraft effectively. This display is crucial for maintaining awareness of the helicopter's current flight state.

The secondary flight display complements the primary display by offering navigation information and system status indicators. This allows pilots to monitor navigation, including waypoints and course data, while keeping an eye on the helicopter's systems, ensuring that they are functioning properly. The integration of these two displays allows for a comprehensive overview of the helicopter’s operational status, enhancing situational awareness and decision-making.

This combination of critical flight information and navigation/system status is vital for pilot performance and safety, particularly in a trainer helicopter where training on procedural operations and situational management is essential. Such an arrangement ensures that the pilot can focus on flying the aircraft while simultaneously managing navigation and systems information effectively.