Helicopter? Close, but not quite, since the rotor blades are fixed-pitch. We’ll just go with “monocopter” for now and sort out the details later for this ducted-fan, thrust-vectored UAV.

Following is a transcript of the video. This helicopter has dual-crossing rotors for increased precision The K-MAX uses a unique double rotor system where the two rotors cross each other.

Mars helicopter Ingenuity appears to be missing rotor blades in Perseverance rover imagery captured. The rover's SuperCam ...

Unmanned aircraft developer Rotor Technologies is working through regulatory approval of a remotely piloted helicopter based on Robinson Helicopter’s R44, with hopes of tapping into the aerial ...