What is the characteristic of the ignition system in the aircraft?

The dual ignition system with two magnetos is a common characteristic in aircraft ignition systems, particularly in piston-engine airplanes. This design uses two separate magnetos to provide redundancy and ensure reliable engine performance. Each magneto operates independently and is connected to a separate set of spark plugs. By having two ignition sources, the system enhances safety—if one magneto fails, the other can still maintain engine operation.

Having a dual system also improves engine efficiency. By firing both sets of spark plugs, it promotes a more uniform combustion process in the engine cylinders, leading to better performance and lower emissions. This redundancy is crucial in aviation, where engine reliability is paramount.

The other options presented highlight different ignition configurations that are less common or applicable in most general aviation aircraft. For example, a single ignition system might lack the necessary redundancy, leading to potential reliability issues. Electronic ignition systems are more prevalent in modern designs but still vary across aircraft types. Lastly, rotating ignition systems are not standard in conventional aviation but may pertain to niche or experimental aircraft designs. Thus, the dual ignition system with two magnetos is the most characteristic of typical aircraft ignition systems, ensuring both safety and efficiency in engine operation.