Citat:The GQ-680 unmanned helicopter adopts the traditional single-rotor with tail rotor configuration. It has a simple and reliable structure, a heavy load, and a long flight time. The length of the body is 5.8 meters, the width is 1.6 meters, and the height of the body is 2.4 meters.
The maximum take-off weight is 680 kg, the maximum payload is 260 kg, the maximum flight range is 1400 km, the maximum ceiling is 7300 meters, the maximum flight time is 8 hours, and the maximum flight speed is 180 km/h.
https://twitter.com/Defence_IDA/status/1621171853313146881

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