记者近日从烟台黄渤海新区获悉，该区企业壹通无人机系统有限公司参与研制的TP500大型无人运输机适航取证首架机试飞成功。飞机空中飞行约50分钟，此次试飞成功标志着向适航取证及商业运营迈出关键一步。
作者：李小波、刘禹锡
新华社音视频部制作
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