Over the past few years, labels such as DJI have pushed drones into the mainstream. If you look closely, you'll notice that a majority of them have four propellers, while helicopters have fewer of ...

A strange helicopter has been making test flights in the south of France. Built by French company Airbus Helicopters, it looks a bit like what would happen if a regular helicopter and an airplane ...

A flying machine resembling a helicopter, designed by Leonardo da Vinci, could be used to develop quieter and stealthier modern drones, according to a new study published in the journal Bulletin of ...