The Arrano 1A is an advanced engine specifically designed for new-generation four-to-six-ton helicopters, delivering a power range of 1,100 to 1,300 shaft horsepower. It currently provides reliable power support for the Airbus H160. Integrating state-of-the-art technologies, the Arrano series represents as the most efficient and competitive propulsion system in its power category. With its innovative design, the Arrano achieves around 15% better fuel efficiency while reducing maintenance time by 40%, significantly lowering operating costs. Benefiting from a new-generation digital control system and 3D-printed fuel injectors, the Arrano engines ensure quick start-up, safety, and precise handling under a wide range of complex climatic and altitude conditions. Since its maiden flight in 2016, the Arrano engine series has become a driving force in advancing helicopter propulsion technology.