I am not good at english. There are some test videos on the bilibili, just for reference. Hope it helps.
https://www.bilibili.com/video/BV1834y1E7u9
8KM(RC N-1 & RC)
https://www.bilibili.com/video/BV16Z4y187fY
14KM, looks like it is flying without FCC
https://www.bilibili.com/video/BV1kF411L7ZB...