What type of engine is used in the hydraulic power unit of the mobile aircraft arresting system?

The hydraulic power unit of the mobile aircraft arresting system utilizes gasoline and diesel engines due to their robustness and reliability in the demanding environments typical of aviation operations. These types of engines provide a high power output necessary to operate the hydraulic systems effectively, ensuring rapid deployment and retraction of the arresting cables. Gasoline and diesel engines are also advantageous because they can deliver continuous power and are widely available, making them suitable for mobile systems that might be used in various locations. This choice takes into consideration the need for a dependable power source that can handle the heavy loads and operational requirements of the hydraulic equipment used in aircraft recovery systems.

Other options, such as electric engines, while suitable for certain applications, may not provide the same level of power in a mobile context without needing substantial infrastructure for charging. Natural gas and hybrid engines are not typically favored in this particular application due to logistical concerns and the specific energy demands of the hydraulic systems involved.