“用电飞行，用油发电” 国产航空发动机技术再升级

Core Viewpoint - The article discusses the development of a 60-kilowatt hybrid electric propulsion system for drones, which combines the advantages of fuel and electric power to enhance flight duration and reduce noise [1][2]. Group 1: Hybrid Propulsion System - The hybrid propulsion system allows drones to "fly on electricity while generating power with fuel," utilizing a gas turbine engine to drive a generator that charges the battery [1]. - This system enables drones to extend their range while eliminating the lengthy charging process, allowing for quicker deployment [1]. - The system can switch to pure electric mode during flight, reducing heat and enhancing stealth capabilities [1]. Group 2: Technical Features - The hybrid system is compact and serves as a versatile partner for electric aircraft, providing a balance between fuel efficiency and silent operation [1]. - The propulsion mechanism features a ducted fan design, which minimizes noise, achieving a "quiet arrival and departure" [1]. Group 3: Current Status - The 60-kilowatt hybrid electric propulsion system has successfully completed flight demonstration validation, indicating that the technology for small drones is maturing [2].