What type of system does the EJet use for its flight controls?

The EJet utilizes a fly-by-wire control system, which is a modern approach to aircraft flight controls. This system replaces traditional mechanical linkages with electronic interfaces. In a fly-by-wire system, pilot inputs are transmitted via electronic signals to flight control computers, which then manage the aircraft's control surfaces to ensure responses are precise and efficient.

The advantages of a fly-by-wire system include weight reduction, as it eliminates the need for heavy mechanical components and linkages. Additionally, it allows for advanced flight control techniques, such as automatic stability augmentation and easier integration of other automated systems. The electronic nature of fly-by-wire systems also enhances safety, as they can include redundancy and fault-tolerant measures to maintain control even in the event of system failures.

The other options describe different types of control systems used in aviation, but they do not apply to the EJet. Mechanical systems rely on physical connections, pneumatic systems use air pressure for actuation, and hydraulic systems operate using fluid pressure. While some aircraft utilize these technologies, the EJet's classification as a fly-by-wire system underscores its modern design and advanced capabilities.