The DGEN engine family represents the world’s smallest turbofan. It is intended for 4-5 seat twin-engine VLJ flying under 25,000 ft and Mach 0.35. The DGEN is designed with easy integration and maintainability, low fuel consumption and low noise level. The engine control unit as well as the oil & fuel equipment is fully integrated around the engine and controlled by FADEC (Full-Authority Digital Engine Control). A starter-generator device is integrated on the high-pressure spool and allows for the electrical start of the engine before switching to generation mode. The main advantages are an easy and reliable control for the pilot, simplified maintenance and a reduced overall weight. This concept also allows for a continuous engine health and aging monitoring.