Final answer:
When the A/THR system is disconnected during a flight, the pilot may lose control of certain automated features and protections.
Step-by-step explanation:
When the A/THR (Autothrust) system is disconnected for the remainder of the flight, there are several things that the pilot may lose:
- The autothrottle system controls the engine thrust, so without it, the pilot will have to manually adjust the thrust levers to maintain the desired speed and power settings.
- In some aircraft, the A/THR system is also linked to other systems like the flight management computer, which calculates the optimal speed and climb/descent profiles. Disconnecting the A/THR may result in the loss of these automated features.
- Lastly, the A/THR system can provide protection against excessive speed or stall conditions. When disconnected, the pilot will have to rely on their own vigilance and training to avoid these dangerous situations.