作者：杨云山

11月8日，我国首个机载SAR（合成孔径雷达）测图系统项目在试飞院中飞通用航空公司提前完成所有改装工作，并成功实现首飞。我国正式成为世界上第三个掌握该项雷达测绘技术的国家，也标志着试飞院中飞公司成为世界上为数不多可以承担先进测绘项目的通航公司。

整个SAR测图系统复杂，尤其是系统在飞机上的改装工作技术难度大。试飞院中飞公司经过长达两年的跟踪努力，成为该项目的主要参研单位之一，承担了飞机的改装和飞行任务。此次改装飞机所加载设备的重量已接近飞机载重的最大值，而且在“奖状”窄小的机身外加挂了三个大尺寸吊舱，使得飞机气动外形变化很大，理论计算表明飞机气动阻力增大近20%。

November 8, China's first airborne SAR (Synthetic Aperture Radar) mapping system project in the House of Flying Universal Airlines flight ahead of schedule to complete all the conversion work and the successful maiden flight. China officially became the world's first radar mapping technology mastered the three countries, also marks the flight school's flying company became the world's few can afford the shipping company's advanced mapping projects.

The SAR mapping system complexity, in particular, the system modification work on aircraft technical difficulties. House of Flying's flight after two years of tracking its efforts to be the main parameters of the project research one of the units to undertake the modification of aircraft and flying missions. The modification of the weight of aircraft loading equipment is nearing the maximum load the aircraft, but also in "certificates," and hung up the narrow fuselage plus three large-size pods, making the aircraft aerodynamic shape has changed dramatically, theoretical calculations show that the aircraft aerodynamic drag increases by nearly 20%.