What factor limits output power in the MQ-9 system?

The limiting factor for output power in the MQ-9 system is engine speed. The engine's design dictates the maximum power it can produce, which is influenced by its speed. As the engine operates, it has a specific RPM (revolutions per minute) range in which it can generate optimal performance. If the engine speed is too low, it may not produce enough thrust for the drone to operate efficiently, while excessive speeds could lead to mechanical issues or damage. This balance ensures that the system operates within safe and efficient parameters, maintaining reliability during missions.

In contrast, while battery charge, temperature, and fuel capacity are relevant to the overall operation of the MQ-9, they do not directly limit the drone's output power in the same way that engine speed does. Battery charge influences how long the system can operate, temperature affects performance stability, and fuel capacity impacts endurance and range, but their effects are secondary to the control the engine speed has over the immediate power output.