It is a twin-engined medium-lift utility helicopter. It is equipped with a single 4-bladed rotor and a single 4-bladed ... turboshaft engines rated at 1,560 shaft horsepower each.

It’s got the usual trappings of a drone, but with only a single rotor it clearly can’t be called by any of the standard multicopter names. Helicopter? Close, but not quite, since the rotor ...

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.