Which of the following are capable of powering the TH-73A in flight?

• A. Two generators (primary and auxiliary)
• B. One battery
• C. Two inverters
• D. A and B

Answer: (D)

The TH-73A is equipped with systems that allow it to be powered in flight using both generators and a battery, making them essential components of its power management system.

Having two generators, a primary and an auxiliary, provides redundancy and ensures that power is constantly available, which is critical for flight safety and operational capability. The primary generator handles the majority of the power requirements during normal operations, while the auxiliary generator can take over if there is an issue with the primary, thereby maintaining functionality.

Furthermore, the aircraft battery serves as a supplementary power source, capable of supplying electricity for essential systems and instruments, particularly during startup or in the event of generator failure.

Together, these power sources—generators and the battery—contribute to a robust power supply system, ensuring that the aircraft's systems remain operational during flight, even if one power source becomes unavailable. This dual capability is crucial for the safe operation of the TH-73A in various flight conditions.