How long can the aux battery power the backup flight instruments and UHF tuning?

• A. 20 minutes
• B. 30 minutes
• C. 40 minutes
• D. 50 minutes

Answer: (B)

The auxiliary battery is designed to provide an essential power source for backup flight instruments and UHF tuning in the event of a primary electrical failure. In this context, the duration for which the aux battery can sustain this critical equipment is specified to be 30 minutes.

This capability is important for maintaining control of the aircraft and communication, allowing pilots to execute necessary flying maneuvers and to communicate effectively even under emergency conditions. The 30 minutes of power ensures that pilots have a sufficient window to manage essential procedures before the battery is depleted, emphasizing the importance of understanding your aircraft's systems in case of failures during flight. This time frame is carefully determined based on the power needs of the backup instruments and the UHF radio functionalities.