A latest Chinese developed land-air dual-mode drone weighing about the same as an apple has shown promising potential in ...

But by switching up things a bit, it’s possible to make a multi-rotor drone that keeps on flying even without two-thirds of its motors running. We’ve been keeping a close eye on [Nick Rehm ...

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.

SEOUL--South Korean researchers have developed a transport drone flying on multiple flexible rotors that self-correct to stay level in flight and can be used as a “flying shopping cart” to ...